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GL Biochem (Shanghai) Ltd.

GL Biochem (Shanghai) Ltd. founded in 1998, has become an internationally recognized biochemical manufacturing company that specializes in producing/synthesizing and providing peptide reagents, custom peptides and antibodies. GL Biochem is

Fmoc-Dab(Boc)-OH, Fmoc-N4-Boc- L-2,4-Diaminobutyric Acid, MFCD00151941

Cas:125238-99-5

Min.Order:1 Gram

FOB Price: $78.0 / 150.0

Type:Manufacturers

inquiry

Simagchem Corporation

Welcome to Simagchem, your partner in China as a premier supply of bulk specialty chemicals for industry and life science. We introduce experienced quality product and exceptional JIT service with instant market intelligence in China to benefit our

High quality Fmoc-N4-Boc- L-2,4-Diaminobutyric Acid supplier in China

Cas:125238-99-5

Min.Order:1 Metric Ton

Negotiable

Type:Manufacturers

inquiry

Dayang Chem (Hangzhou) Co.,Ltd.

DayangChem exported this product to many countries and regions at best price in China. If you are looking for the product’s supplier in China, DayangChem is your best choice. Pls contact with us freely for getting detailed product specifica

N-Fmoc-N'-Boc-L-2,4-diaminobutyric acid

Cas:125238-99-5

Min.Order:1 Kilogram

FOB Price: $3.0

Type:Lab/Research institutions

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Henan Tianfu Chemical Co., Ltd.

Product Name: FMOC-DAB(BOC)-OH Synonyms: N-ALPHA-(9-FLUORENYLMETHYLOXYCARBONYL)-N-GAMMA-T-BUTYLOXYCARBONYL-L-2,4-DIAMINOBUTYRIC ACID;N-ALPHA-(9-FLUORENYLMETHYLOXYCARBONYL)-N-GAMMA-TERT-BUTYLOXYCARBONYL-L-2,4-DIAMINOBUTYRIC ACID;NA-FMOC

125238-99-5 FMOC-DAB(BOC)-OH

Cas:125238-99-5

Min.Order:1 Gram

FOB Price: $8900.0

Type:Lab/Research institutions

inquiry

Hebei Nengqian Chemical Import and Export Co., LTD

With our good experience, we offer detailed technical support and advice to assist customers. We communicate closely with customers to establish their quality requirements. Consistent Quality Our plant has strict quality control in each manufacturin

Fmoc-Dab(Boc)-OH CAS 125238-99-5

Cas:125238-99-5

Min.Order:1 Kilogram

FOB Price: $3.0 / 10.0

Type:Trading Company

inquiry

Zhuozhou Wenxi import and Export Co., Ltd

WITH US,YOUR MONEY IN SAFE,YOUR BUSINESS IN SAFE 1)Quick Response Within 12 hours; 2)Quality Guarantee: All products are strictly tested by our QC, confirmed by QA and approved by third party lab in China, USA, Canada, Germany, UK, Italy, France et

Pharmaceutical Grade CAS 125238-99-5 with competitive price

Cas:125238-99-5

Min.Order:1 Kilogram

FOB Price: $139.0 / 210.0

Type:Trading Company

inquiry

Shanghai Upbio Tech Co.,Ltd

1.No Less 8 years exporting experience. Clients can 100% received goods 2.Lower Price with higher quality 3,Free sample 4,We are sincerely responsible for the "product quality" and "After Service" Upbio is Specialized

LIDE PHARMACEUTICALS LIMITED

Advantage : LIDE PHARMACEUTICALS LTD. is a mid-small manufacturing-type enterprise, engaged in pharmaceutical intermediates of R&D, custom-made and production, and also involving trading chemicals for export. We have established the

Shanghai Minstar Chemical Co., Ltd

Product Name: FMOC-DAB(BOC)-OH CAS: 125238-99-5 MF: C24H28N2O6 MW: 440.49 EINECS: 1533716-785-6 FMOC-DAB(BOC)-OH Structure FMOC-DAB(BOC)-OH Chemical Properties Melting point 111-113℃ Boiling point 670.9±55.0 °C(Pre

FMOC-DAB(BOC)-OH

Cas:125238-99-5

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Qingdao Beluga Import and Export Co., LTD

FMOC-DAB(BOC)-OH CAS: 125238-99-5 Qingdao Belugas Import and Export Co., Ltd. is a scientific and technological company integrating research and development, production and trade of chemical intermediates, specializing in high quality organic interm

FMOC-DAB(BOC)-OH CAS: 125238-99-5

Cas:125238-99-5

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Shandong Hanjiang Chemical Co., Ltd.

Hello, dear friend! I'm Hansen and Allen from China. Welcome to my lookchem mall! The following is a brief introduction of our company's products and services. If you are interested in our products, please contact us by emai

Butanoic acid,4-[[(1,1-dimethylethoxy)carbonyl]amino]-2-[[(9H-fluoren-9-ylmethoxy)carbonyl]amino]-,(2S)-

Cas:125238-99-5

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Henan Wentao Chemical Product Co., Ltd.

Henan Wentao Chemical Product Co.,Ltd is Located in Zhengzhou High-tech Development Zone with import and export license, We passed ISO 9001:2008 as well, Henan Wentao has developed more than 1000 compounds, which are widely used in the fields of prod

Xiamen Hisunny Chemical Co.,Ltd

Best quality & Attractive price & Professional service; Trial & Pilot & Commercial Hisunny Chemical is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality intermediates, specia

Fmoc-N4-Boc- L-2,4-Diaminobutyric Acid

Cas:125238-99-5

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Afine Chemicals Limited

Our Services 1. New Molecules R&D 2. Own test center HPLC NMR GC LC-MS 3. API and Intermediates from China reputed manufacturers 4. Documents support COA MOA MSDS DMF open part Our advantages 1. Government awarded company. Top 100 enter

N-Fmoc-N'-Boc-L-2,4-diaminobutyric acid

Cas:125238-99-5

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

SHANGHAI T&W PHARMACEUTICAL CO., LTD.

A substitute for perfluorooctanoic acid, mainly used as a surfactant, dispersant, additive, etc Appearance:White solid or Colorless liquid Purity:99.3 % We will ship the goods in a timely manner as required We can provide relevant documents acc

Fmoc-Dab(Boc)-OH

Cas:125238-99-5

Min.Order:4 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou J&H Chemical Co., Ltd.

J&H CHEM R&D center can offer custom synthesis according to the contract research and development services for the fine chemicals, pharmaceutical, biotechnique and some of the other chemicals. J&H CHEM has some Manufacturing base in Jia

Zibo Hangyu Biotechnology Development Co., Ltd

Zibo Hangyu Biotechnology Development Co., Ltd is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality pharmaceuticals, intermediates, special chemicals and OLED intermediates and other fine chemi

High quality Fmoc-N4-Boc- L-2,4-Diaminobutyric Acid

Cas:125238-99-5

Min.Order:10 Gram

FOB Price: $100.0

Type:Lab/Research institutions

inquiry

Hangzhou Lingrui Chemical Co.,Ltd.

125238-99-5Appearance:white powder Storage:keep cold Package:according to customers' requirements Application:Pharmaceutical intermediates 125238-99-5 Transportation:By air(EMS or EUB or FedEx or TNT ect...) or by sea(FOB or CIF or CNF ect...)or acco

125238-99-5

Cas:125238-99-5

Min.Order:1 Gram

Negotiable

Type:Other

inquiry

Ality Chemical Corporation

The above product is Ality Chemical's strong item with best price, good quality and fast supply. Ality Chemical has been focusing on the research and production of this field for over 14 years. At the same time, we are always committed to providing h

Factory Supply Fmoc-Dab(Boc)-OH

Cas:125238-99-5

Min.Order:0

Negotiable

Type:Other

inquiry

Zibo Dorne chemical technology co. LTD

Product Details Grade: pharmaceutical grade Purity:99%+ ProductionCapacity: 1000 Kilogram/Month Scope of use: For scientific research only(The product must be used legally) Our Advantage 1. Best quality with competitive price. 2. Quick shipping,

Fmoc-Dab(Boc)-OH, Fmoc-N4-Boc- L-2,4-Diaminobutyric Acid

Cas:125238-99-5

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Xiamen Jenny Chemical Technology Co., Ltd.

GMP standard, high purity, competitive price, in stock 1. Quick Response: within 6 hours after receiving your email. 2. Quality Guarantee: All products are strictly tested by our QC, confirmed by QA, and approved by a third-party lab in China, USA,

(2S)-2-(9H-Fluoren-9-ylmethoxycarbonylamino)-4-[(2-methylpropan-2-yl)oxycarbonylamino]butanoicacid

Cas:125238-99-5

Min.Order:1 Milligram

Negotiable

Type:Trading Company

inquiry

Hangzhou ZeErRui Chemical Co., Ltd.

Hangzhou ZeErRui Chemical Co., Ltd. is a leading company that is focused on developing and producing high-quality flavor ingredients used for foods, pharmaceutic, cosmetics, and daily-use goods. Our goal is to produce flavor ingredients through scien

FMOC-DAB(BOC)-OH china manufacture

Cas:125238-99-5

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou Zhongqi chem Co.,Ltd.

Located in Hangzhou National Hi-Tech Industrial Development Zone, zhongqichem is a technical company mainly focus on the Custom synthesis, manufacturing, sales of chemicals to various industries. Benefiting from the outstanding customer service and h

Hunan chemfish Pharmaceutical co.,Ltd

Appearance:95%+ Package:R&D,Pilot run Transportation:per client require Port:Express ,Air, Sea

Fmoc-N4-Boc- L-2,4-diaminobutyric acid

Cas:125238-99-5

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

SAGECHEM LIMITED

SAGECHEM is a chemical R&D, manufacturing and distribution company in China since 2009, including pharmaceutical intermediates, agrochemical, dyestuff intermediates, organosilicone, API and etc. We also offer a full range of services in custom synthe

SAGECHEM/Fmoc-Dab(Boc)-OH

Cas:125238-99-5

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Suzhou Health Chemicals Co., Ltd.

High quality,stable supply chain.Appearance:white/off-white or light yellow Storage:Store in cool and dry place, keep away from strong light and heat. Package:aluminum bottle,glass bottle,PTFE bottle,cardboard drum Application:This product can be use

N-Fmoc-N'-Boc-L-2,4-diaminobutyric acid

Cas:125238-99-5

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Bluecrystal chem-union

We are a Union of chemistry in China, consists of chemists,engineers, laboratories,factories in China. We organize surplus capacity of R&D and production as well as custom synthesis for chemical products and chemical business project. We are supp

125238-99-5

Cas:125238-99-5

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Win-Win chemical Co.Ltd

Stock products, own laboratory Package:Grams, Kilograms Application:For R&D Transportation:According to customer request Port:Shanghai

Fmoc-N4-Boc- L-2,4-diaminobutyric acid cas no. 125238-99-5 98%

Cas:125238-99-5

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Research Peptide Biotechnology Co., Ltd.

High purity, high success rate, short cycle and moderate priceAppearance:White powder solid Storage:Negative 20 degrees Celsius Package:5mg, 10mg 100mg, 1gram Application:Applied to various scientific research

Hangzhou Dingyan Chem Co., Ltd

R & D enterprises have their own stock in stockAppearance:To be subject to the object Package:Customized Application:pharmaceutical intermediates Transportation:Air Port:Shanghai;Guangzhou

Synthetic route

di-tert-butyl dicarbonate
24424-99-5

di-tert-butyl dicarbonate

Nα-(9-fluorenylmethoxycarbonyl)-L-2,4-diaminobutyric acid
161420-87-7

Nα-(9-fluorenylmethoxycarbonyl)-L-2,4-diaminobutyric acid

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid
125238-99-5

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid

Conditions
ConditionsYield
With sodium hydroxide In water; acetone at 0 - 10℃; for 4h; pH=7.5 - 8; pH-value;86.62%
With triethylamine In water; dimethyl sulfoxide74.2%
With sodium hydrogencarbonate In water; acetonitrile for 6h; Yield given;
(S)-(3-fluoren-9-yl-9-methoxycarbonyl)-4-[2-(tert-butyloxycarbonylamino)ethyl]-5-oxazolidinone

(S)-(3-fluoren-9-yl-9-methoxycarbonyl)-4-[2-(tert-butyloxycarbonylamino)ethyl]-5-oxazolidinone

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid
125238-99-5

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid

Conditions
ConditionsYield
With lithium hydroxide In tetrahydrofuran at 20℃;73%
9H-9-fluorenylmethyl (4S)-4-(3-azido-2-oxopropyl)-5-oxo-1,3-oxazolone-3-carboxylate
918428-66-7

9H-9-fluorenylmethyl (4S)-4-(3-azido-2-oxopropyl)-5-oxo-1,3-oxazolone-3-carboxylate

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid
125238-99-5

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 88 percent / toluene / 0.25 h / microwave irradiation
2: 73 percent / LiOH / tetrahydrofuran / 20 °C
View Scheme
Nα-Fmoc-Glu-5-oxazolidinone
159530-17-3

Nα-Fmoc-Glu-5-oxazolidinone

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid
125238-99-5

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: 94 percent / N-methylmorpholine; IBC-Cl; NaN3 / tetrahydrofuran / 0.5 h / -10 °C
2: 88 percent / toluene / 0.25 h / microwave irradiation
3: 73 percent / LiOH / tetrahydrofuran / 20 °C
View Scheme
N2-[(9H-fluoren-9-ylmethoxy)carbonyl]-L-glutamine
71989-20-3

N2-[(9H-fluoren-9-ylmethoxy)carbonyl]-L-glutamine

Fmoc-Ala

Fmoc-Ala

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid
125238-99-5

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 88.9 percent / I,I-bis(trifluoroacetoxy)iodobenzene; H2O / dimethylsulfoxide / 20 h
2: 74.2 percent / triethylamine / H2O; dimethylsulfoxide
View Scheme
N2-[(9H-fluoren-9-ylmethoxy)carbonyl]-L-glutamine
71989-20-3

N2-[(9H-fluoren-9-ylmethoxy)carbonyl]-L-glutamine

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid
125238-99-5

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: pyridine; bis-[(trifluoroacetoxy)iodo]benzene / 1.) CH3CN, H2O, 60 deg C, 2.) CH3CN, H2O, 60 deg C, 5 h
2: sodium hydrogencarbonate / water; acetonitrile / 6 h
View Scheme
(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid
125238-99-5

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid

Fmoc-L-Dbu(Boc)-OCH3
125218-68-0

Fmoc-L-Dbu(Boc)-OCH3

Conditions
ConditionsYield
In diethyl ether for 0.166667h; Methylation;100%
(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid
125238-99-5

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid

benzylamine
100-46-9

benzylamine

(9H-fluoren-9-yl)methyl tert-butyl (4-(benzylamino)-4-oxobutane-1,3-diyl)(S)-dicarbamate
316152-95-1

(9H-fluoren-9-yl)methyl tert-butyl (4-(benzylamino)-4-oxobutane-1,3-diyl)(S)-dicarbamate

Conditions
ConditionsYield
With benzotriazol-1-ol; diisopropyl-carbodiimide In DMF (N,N-dimethyl-formamide); dichloromethane at 35℃;100%
With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dichloromethane for 2h; Inert atmosphere;98%
Stage #1: (S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid With benzotriazol-1-ol; diisopropyl-carbodiimide In dichloromethane; N,N-dimethyl-formamide for 0.0833333h;
Stage #2: benzylamine In dichloromethane; N,N-dimethyl-formamide at 35℃;
98%
With benzotriazol-1-ol; dicyclohexyl-carbodiimide In acetonitrile at 20℃; for 3h;14.4 g
With benzotriazol-1-ol; dicyclohexyl-carbodiimide In acetonitrile at 20℃; for 2.5h;
(S)-2-amino-3-phenylpropionamide hydrochloride
65864-22-4

(S)-2-amino-3-phenylpropionamide hydrochloride

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid
125238-99-5

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid

(1'S, 2S)-4-(N-Boc-amino)-N'-(1'-carbamoyl-2'-phenylethyl)-2-(N''-Fmoc-amino)butanamide
849948-77-2

(1'S, 2S)-4-(N-Boc-amino)-N'-(1'-carbamoyl-2'-phenylethyl)-2-(N''-Fmoc-amino)butanamide

Conditions
ConditionsYield
With benzotriazol-1-ol; triethylamine; diisopropyl-carbodiimide In DMF (N,N-dimethyl-formamide); dichloromethane100%
With benzotriazol-1-ol; triethylamine; diisopropyl-carbodiimide In dichloromethane; N,N-dimethyl-formamide for 16h;
(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid
125238-99-5

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid

2-(3-chlorophenyl)ethylamine
13078-79-0

2-(3-chlorophenyl)ethylamine

4-(N-Boc-amino)-N'-2-(3-chlorophenyl)ethyl-(S)-2-(N''-Fmoc-amino)butanamide
849948-71-6

4-(N-Boc-amino)-N'-2-(3-chlorophenyl)ethyl-(S)-2-(N''-Fmoc-amino)butanamide

Conditions
ConditionsYield
With benzotriazol-1-ol; diisopropyl-carbodiimide In DMF (N,N-dimethyl-formamide); dichloromethane at 35℃;100%
benzyl bromide
100-39-0

benzyl bromide

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid
125238-99-5

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid

Fmoc-L-Dab(Boc)-OBn
668985-69-1

Fmoc-L-Dab(Boc)-OBn

Conditions
ConditionsYield
With sodium hydrogencarbonate In N,N-dimethyl-formamide at 0 - 25℃; for 26h;98%
(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid
125238-99-5

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid

HCl*H-Amn-Glu(OBzl)-Gly-OAll

HCl*H-Amn-Glu(OBzl)-Gly-OAll

Fmoc-Dab(Boc)-Amn-Glu(OBzl)-Gly-OAll

Fmoc-Dab(Boc)-Amn-Glu(OBzl)-Gly-OAll

Conditions
ConditionsYield
With benzotriazol-1-ol; O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate; N-ethyl-N,N-diisopropylamine In N,N-dimethyl acetamide for 6h; Ambient temperature;95.4%
N,N-bis(benzyloxycarbonyl)-1H-pyrazole-1-carboxamidine
152120-55-3

N,N-bis(benzyloxycarbonyl)-1H-pyrazole-1-carboxamidine

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid
125238-99-5

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid

trifluoroacetic acid
76-05-1

trifluoroacetic acid

C21H24N4O6*C2HF3O2
1573112-63-6

C21H24N4O6*C2HF3O2

Conditions
ConditionsYield
Stage #1: (S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid With N-ethyl-N,N-diisopropylamine In dichloromethane
Stage #2: With piperidine In N,N-dimethyl-formamide
Stage #3: N,N-bis(benzyloxycarbonyl)-1H-pyrazole-1-carboxamidine; trifluoroacetic acid Further stages;
95.2%
morpholine 4-carboxylic acid
50881-96-4

morpholine 4-carboxylic acid

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid
125238-99-5

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid

(S)-3-cyclohexyl-2-(9H-fluoren-9-ylmethoxycarbonylamino)propionic acid
135673-97-1

(S)-3-cyclohexyl-2-(9H-fluoren-9-ylmethoxycarbonylamino)propionic acid

C23H40N4O7
1276031-39-0

C23H40N4O7

Conditions
ConditionsYield
Stage #1: (S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid With N-ethyl-N,N-diisopropylamine In dichloromethane at 20℃;
Stage #2: With piperidine In N,N-dimethyl-formamide for 0.5h;
Stage #3: morpholine-4-carboxylic acid; (S)-3-cyclohexyl-2-(9H-fluoren-9-ylmethoxycarbonylamino)propionic acid Further stages;
95%
methyl (4S,7S,10S)-16,25-bis(2-((tert-butoxycarbonyl)amino)ethoxy)-26-methoxy-7-methyl-10-(methylamino)-6,9-dioxo-5,8-diaza-1,2(1,3)-dibenzenacyclodecaphane-4-carboxylate

methyl (4S,7S,10S)-16,25-bis(2-((tert-butoxycarbonyl)amino)ethoxy)-26-methoxy-7-methyl-10-(methylamino)-6,9-dioxo-5,8-diaza-1,2(1,3)-dibenzenacyclodecaphane-4-carboxylate

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid
125238-99-5

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid

methyl (4S,7S,10S)-10-((S)-2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-4-((tert-butoxycarbonyl)amino)-N-methylbutanamido)-16,25-bis(2-((tert-butoxycarbonyl)amino)ethoxy)-26-methoxy-7-methyl-6,9-dioxo-5,8-diaza-1,2(1,3)-dibenzenacyclodecaphane-4-carboxylate

methyl (4S,7S,10S)-10-((S)-2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-4-((tert-butoxycarbonyl)amino)-N-methylbutanamido)-16,25-bis(2-((tert-butoxycarbonyl)amino)ethoxy)-26-methoxy-7-methyl-6,9-dioxo-5,8-diaza-1,2(1,3)-dibenzenacyclodecaphane-4-carboxylate

Conditions
ConditionsYield
With N-ethyl-N,N-diisopropylamine; N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate In N,N-dimethyl-formamide at 20℃; for 0.5h;95%
C49H45N3O4S3

C49H45N3O4S3

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid
125238-99-5

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid

C73H71N5O9S3

C73H71N5O9S3

Conditions
ConditionsYield
Stage #1: (S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid With 2,4,6-trichlorobenzoyl chloride; triethylamine In tetrahydrofuran at 0℃; for 2h;
Stage #2: C49H45N3O4S3 With dmap In tetrahydrofuran at 0 - 25℃; for 1h;
91%
methyl (4S,7S,10S)-16-(2-((tert-butoxycarbonyl)amino)ethoxy)-26-hydroxy-7-methyl-10-(methylamino)-6,9-dioxo-5,8-diaza-1,2(1,3)-dibenzenacyclodecaphane-4-carboxylate

methyl (4S,7S,10S)-16-(2-((tert-butoxycarbonyl)amino)ethoxy)-26-hydroxy-7-methyl-10-(methylamino)-6,9-dioxo-5,8-diaza-1,2(1,3)-dibenzenacyclodecaphane-4-carboxylate

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid
125238-99-5

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid

methyl (4S,7S,10S)-10-((S)-2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-4-((tert-butoxycarbonyl)amino)-N-methylbutanamido)-16-(2-((tert-butoxycarbonyl)amino)ethoxy)-26-hydroxy-7-methyl-6,9-dioxo-5,8-diaza-1,2(1,3)-dibenzenacyclodecaphane-4-carboxylate

methyl (4S,7S,10S)-10-((S)-2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-4-((tert-butoxycarbonyl)amino)-N-methylbutanamido)-16-(2-((tert-butoxycarbonyl)amino)ethoxy)-26-hydroxy-7-methyl-6,9-dioxo-5,8-diaza-1,2(1,3)-dibenzenacyclodecaphane-4-carboxylate

Conditions
ConditionsYield
With N-ethyl-N,N-diisopropylamine; N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate In tetrahydrofuran at 50℃; for 12h; Inert atmosphere;89%
With N-ethyl-N,N-diisopropylamine; N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate at 20℃; for 4h; Inert atmosphere;78%
allyl bromide
106-95-6

allyl bromide

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid
125238-99-5

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid

Fmoc-L-Dab(Boc)-OAllyl, Dab = 2,4-diaminobutyric acid

Fmoc-L-Dab(Boc)-OAllyl, Dab = 2,4-diaminobutyric acid

Conditions
ConditionsYield
With Aliquat (at)366; sodium hydrogencarbonate In dichloromethane; water at 20℃;83%
With Aliquat 336; sodium hydrogencarbonate In dichloromethane; water at 20℃;
EB-NH2

EB-NH2

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid
125238-99-5

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid

C48H48N6O12S2

C48H48N6O12S2

Conditions
ConditionsYield
With N-ethyl-N,N-diisopropylamine; HATU In N,N-dimethyl-formamide for 24h;80%
thymidyl acetic acid
20924-05-4

thymidyl acetic acid

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid
125238-99-5

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid

C26H26N4O7

C26H26N4O7

Conditions
ConditionsYield
Stage #1: (S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid With trifluoroacetic acid In dichloromethane at 45℃; for 1h;
Stage #2: thymidyl acetic acid With 2,4,6-trimethyl-pyridine; N-ethyl-N,N-diisopropylamine; N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate In 1-methyl-pyrrolidin-2-one for 1.5h;
80%
methyl 2'-(3'-(4-(aminomethyl)-[2,4'-bioxazol]-2'-yl)-[1,1'-biphenyl]-3-yl)-[2,4'-bioxazole]-4-carboxylate
1447274-12-5

methyl 2'-(3'-(4-(aminomethyl)-[2,4'-bioxazol]-2'-yl)-[1,1'-biphenyl]-3-yl)-[2,4'-bioxazole]-4-carboxylate

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid
125238-99-5

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid

methyl 2'-(3'-(4-((2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-4-(((tert-butoxy)carbonyl)amino)butanamido)methyl)-[2,4'-bioxazol]-2'-yl)-[1,1'-biphenyl]-3-yl)-[2,4'-bioxazol]-4-carboxylate
1447274-28-3

methyl 2'-(3'-(4-((2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-4-(((tert-butoxy)carbonyl)amino)butanamido)methyl)-[2,4'-bioxazol]-2'-yl)-[1,1'-biphenyl]-3-yl)-[2,4'-bioxazol]-4-carboxylate

Conditions
ConditionsYield
Stage #1: (S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In N,N-dimethyl-formamide for 0.0833333h; Inert atmosphere;
Stage #2: methyl 2'-(3'-(4-(aminomethyl)-[2,4'-bioxazol]-2'-yl)-[1,1'-biphenyl]-3-yl)-[2,4'-bioxazole]-4-carboxylate With N-ethyl-N,N-diisopropylamine In N,N-dimethyl-formamide at 20℃; Inert atmosphere;
78%
Fmoc-Leu-OH
35661-60-0

Fmoc-Leu-OH

N-Fmoc L-Phe
35661-40-6

N-Fmoc L-Phe

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid
125238-99-5

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid

N-α-(9-fluorenylmethyloxycarbonyl)-N-γ-tert-butyloxycarbonyl-D-2,4-diaminobutyric acid

N-α-(9-fluorenylmethyloxycarbonyl)-N-γ-tert-butyloxycarbonyl-D-2,4-diaminobutyric acid

NH2-D-Dab-L-Dab-L-Dab-L-Leu-D-Phe-L-Dab-L-Dab-L-Leu-NH2

NH2-D-Dab-L-Dab-L-Dab-L-Leu-D-Phe-L-Dab-L-Dab-L-Leu-NH2

Conditions
ConditionsYield
Stage #1: Fmoc-Leu-OH With N-ethyl-N,N-diisopropylamine; N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate In N,N-dimethyl-formamide at 50℃; for 0.0833333h; Microwave irradiation;
Stage #2: With piperidine In N,N-dimethyl-formamide at 75℃; for 0.1h; Microwave irradiation;
Stage #3: Fmoc-Leu-OH; N-Fmoc L-Phe; (S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid; N-α-(9-fluorenylmethyloxycarbonyl)-N-γ-tert-butyloxycarbonyl-D-2,4-diaminobutyric acid Further stages;
77%
methyl (4S,7S,10S)-26-(benzyloxy)-10-(((benzyloxy)carbonyl)(methyl)amino)-16-(2-((tert-butoxycarbonyl)amino)ethoxy)-25-fluoro-7-methyl-6,9-dioxo-5,8-diaza-1,2(1,3)-dibenzenacyclodecaphane-4-carboxylate

methyl (4S,7S,10S)-26-(benzyloxy)-10-(((benzyloxy)carbonyl)(methyl)amino)-16-(2-((tert-butoxycarbonyl)amino)ethoxy)-25-fluoro-7-methyl-6,9-dioxo-5,8-diaza-1,2(1,3)-dibenzenacyclodecaphane-4-carboxylate

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid
125238-99-5

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid

methyl (4S,7S,10S)-10-((S)-2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-4-((tert-butoxycarbonyl)amino)-N-methylbutanamido)-16-(2-((tert-butoxycarbonyl)amino)ethoxy)-25-fluoro-26-hydroxy-7-methyl-6,9-dioxo-5,8-diaza-1,2(1,3)-dibenzenacyclodecaphane-4-carboxylate

methyl (4S,7S,10S)-10-((S)-2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-4-((tert-butoxycarbonyl)amino)-N-methylbutanamido)-16-(2-((tert-butoxycarbonyl)amino)ethoxy)-25-fluoro-26-hydroxy-7-methyl-6,9-dioxo-5,8-diaza-1,2(1,3)-dibenzenacyclodecaphane-4-carboxylate

Conditions
ConditionsYield
Stage #1: (S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid With 4-methyl-morpholine; 2-chloro-4,6-dimethoxy-1 ,3,5-triazine In tetrahydrofuran for 0.333333h;
Stage #2: methyl (4S,7S,10S)-26-(benzyloxy)-10-(((benzyloxy)carbonyl)(methyl)amino)-16-(2-((tert-butoxycarbonyl)amino)ethoxy)-25-fluoro-7-methyl-6,9-dioxo-5,8-diaza-1,2(1,3)-dibenzenacyclodecaphane-4-carboxylate In tetrahydrofuran at 20℃; for 2h;
68%
(S)-2,4-dimethyl-pent-4-enoic acid
1070774-52-5

(S)-2,4-dimethyl-pent-4-enoic acid

Fmoc-D-abrine
1070774-51-4

Fmoc-D-abrine

N-Fmoc-O-TIPS-β-tyrosine
1070774-49-0

N-Fmoc-O-TIPS-β-tyrosine

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid
125238-99-5

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid

C46H69N5O8Si

C46H69N5O8Si

Conditions
ConditionsYield
Stage #1: N-Fmoc-O-TIPS-β-tyrosine With N-ethyl-N,N-diisopropylamine In dichloromethane; N,N-dimethyl-formamide at 20℃; for 4h;
Stage #2: With piperidine In N,N-dimethyl-formamide for 0.25h;
Stage #3: (S)-2,4-dimethyl-pent-4-enoic acid; Fmoc-D-abrine; (S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid
65%
(naphth-1-yl)methylamine
118-31-0

(naphth-1-yl)methylamine

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid
125238-99-5

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid

4-N-Boc-amino-(S)-2-N'-Fmoc-amino-N''-1-naphthylmethylbutanamide
369656-01-9

4-N-Boc-amino-(S)-2-N'-Fmoc-amino-N''-1-naphthylmethylbutanamide

Conditions
ConditionsYield
With benzotriazol-1-ol; diisopropyl-carbodiimide In DMF (N,N-dimethyl-formamide); dichloromethane at 50℃;60%
3-hydroxymethyl-benzoic acid
3006-96-0

3-hydroxymethyl-benzoic acid

acetic acid
64-19-7

acetic acid

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid
125238-99-5

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid

3-[(S)-2-carboxy-2-(9H-fluoren-9-ylmethoxycarbonylamino)ethyl]indole-1-carboxylic acid tert-butyl ester
143824-78-6

3-[(S)-2-carboxy-2-(9H-fluoren-9-ylmethoxycarbonylamino)ethyl]indole-1-carboxylic acid tert-butyl ester

C17H20N4O3

C17H20N4O3

Conditions
ConditionsYield
Stage #1: 3-hydroxymethyl-benzoic acid With piperidine; N-ethylmorpholine;; N-[(1H-benzotriazol-1-yl)(dimethylamino)methylene]-N-methylmethanaminium tetrafluoroborate In N,N-dimethyl-formamide for 2.08333h;
Stage #2: (S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid With 1-methyl-1H-imidazole; 1-(mesitylene-2-sulfonyl)-3-nitro-1H-1,2,4-triazole In dichloromethane for 1.08333h;
Stage #3: acetic acid; 3-[(S)-2-carboxy-2-(9H-fluoren-9-ylmethoxycarbonylamino)ethyl]indole-1-carboxylic acid tert-butyl ester Further stages;
59%
4-methylhexanoic acid
1561-11-1

4-methylhexanoic acid

Fmoc-Leu-OH
35661-60-0

Fmoc-Leu-OH

N-Fmoc L-Phe
35661-40-6

N-Fmoc L-Phe

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid
125238-99-5

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid

N-α-(9-fluorenylmethyloxycarbonyl)-N-γ-tert-butyloxycarbonyl-D-2,4-diaminobutyric acid

N-α-(9-fluorenylmethyloxycarbonyl)-N-γ-tert-butyloxycarbonyl-D-2,4-diaminobutyric acid

C48H86N14O9

C48H86N14O9

Conditions
ConditionsYield
Stage #1: Fmoc-Leu-OH With N-ethyl-N,N-diisopropylamine; N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate In N,N-dimethyl-formamide at 50℃; for 0.0833333h; Microwave irradiation;
Stage #2: With piperidine In N,N-dimethyl-formamide at 75℃; for 0.1h; Microwave irradiation;
Stage #3: 4-methylhexanoic acid; Fmoc-Leu-OH; N-Fmoc L-Phe; (S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid; N-α-(9-fluorenylmethyloxycarbonyl)-N-γ-tert-butyloxycarbonyl-D-2,4-diaminobutyric acid Further stages;
58%
tert-Butyl (3R,4S,5S)-3-methoxy-4-(N-methylamino)-5-methylheptanoate hydrochloride
120205-48-3

tert-Butyl (3R,4S,5S)-3-methoxy-4-(N-methylamino)-5-methylheptanoate hydrochloride

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid
125238-99-5

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid

Fmoc-Dab(Boc)-Dil-OtBu

Fmoc-Dab(Boc)-Dil-OtBu

Conditions
ConditionsYield
Stage #1: tert-Butyl (3R,4S,5S)-3-methoxy-4-(N-methylamino)-5-methylheptanoate hydrochloride; (S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid With N-ethyl-N,N-diisopropylamine In ethyl acetate at 0℃; for 0.666667h;
Stage #2: With 2-chloro-1-methyl-pyridinium iodide In ethyl acetate at 0 - 20℃; for 12h;
51%
2-ethyl-N-butylamine
617-79-8

2-ethyl-N-butylamine

benzyl 2-oxobut-3-enylcarbamate
1187487-23-5

benzyl 2-oxobut-3-enylcarbamate

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid
125238-99-5

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid

(S)-9-fluorenylmethyl 10-(2-ethylbutyl)-2,2-dimethyl-18-phenyl-4,9,13,16-tetraoxo-3,17-dioxa-5,10,15-triazaoctadecan-8-ylcarbamate
1185654-07-2

(S)-9-fluorenylmethyl 10-(2-ethylbutyl)-2,2-dimethyl-18-phenyl-4,9,13,16-tetraoxo-3,17-dioxa-5,10,15-triazaoctadecan-8-ylcarbamate

Conditions
ConditionsYield
Stage #1: 2-ethyl-N-butylamine; benzyl 2-oxobut-3-enylcarbamate In dichloromethane at 20℃; for 0.25h;
Stage #2: (S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid With diisopropyl-carbodiimide In dichloromethane at 20℃;
46%
Stage #1: 2-ethyl-N-butylamine; benzyl 2-oxobut-3-enylcarbamate In dichloromethane at 20℃; for 0.25h;
Stage #2: (S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid With diisopropyl-carbodiimide In dichloromethane at 20℃;
46%
3-(tritylthio) propanoic acid
27144-18-9

3-(tritylthio) propanoic acid

Fmoc-Leu-OH
35661-60-0

Fmoc-Leu-OH

N-Fmoc L-Phe
35661-40-6

N-Fmoc L-Phe

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid
125238-99-5

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid

N-α-(9-fluorenylmethyloxycarbonyl)-N-γ-tert-butyloxycarbonyl-D-2,4-diaminobutyric acid

N-α-(9-fluorenylmethyloxycarbonyl)-N-γ-tert-butyloxycarbonyl-D-2,4-diaminobutyric acid

C44H78N14O9S

C44H78N14O9S

Conditions
ConditionsYield
Stage #1: Fmoc-Leu-OH With N-ethyl-N,N-diisopropylamine; N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate In N,N-dimethyl-formamide at 50℃; for 0.0833333h; Microwave irradiation;
Stage #2: With piperidine In N,N-dimethyl-formamide at 75℃; for 0.1h; Microwave irradiation;
Stage #3: 3-(tritylthio) propanoic acid; Fmoc-Leu-OH; N-Fmoc L-Phe; (S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid; N-α-(9-fluorenylmethyloxycarbonyl)-N-γ-tert-butyloxycarbonyl-D-2,4-diaminobutyric acid Further stages;
32%
benzyl 2-oxobut-3-enylcarbamate
1187487-23-5

benzyl 2-oxobut-3-enylcarbamate

2,2-Diphenylethylamine
3963-62-0

2,2-Diphenylethylamine

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid
125238-99-5

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid

(S)-9-fluorenylmethyl 10-(2,2-diphenylethyl)-2,2-dimethyl-18-phenyl-4,9,13,16-tetraoxo-3,17-dioxa-5,10,15-triazaoctadecan-8-ylcarbamate
1185653-49-9

(S)-9-fluorenylmethyl 10-(2,2-diphenylethyl)-2,2-dimethyl-18-phenyl-4,9,13,16-tetraoxo-3,17-dioxa-5,10,15-triazaoctadecan-8-ylcarbamate

Conditions
ConditionsYield
Stage #1: benzyl 2-oxobut-3-enylcarbamate; 2,2-Diphenylethylamine In dichloromethane at 20℃; for 0.25h;
Stage #2: (S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid With diisopropyl-carbodiimide In dichloromethane at 20℃; Product distribution / selectivity;
31%
Stage #1: benzyl 2-oxobut-3-enylcarbamate; 2,2-Diphenylethylamine In dichloromethane at 20℃; for 0.25h;
Stage #2: (S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid With diisopropyl-carbodiimide In dichloromethane at 20℃; Product distribution / selectivity;
31%
Stage #1: benzyl 2-oxobut-3-enylcarbamate; 2,2-Diphenylethylamine In dichloromethane at 20℃; for 0.25h;
Stage #2: (S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid With diisopropyl-carbodiimide In dichloromethane at 20℃; Product distribution / selectivity;
31%
isooctanoic acid
929-10-2

isooctanoic acid

Fmoc-L-Dab(Dde)-OH, DDE = 1-(4,4-dimethyl-2,6-dioxocylohexylidene)ethyl

Fmoc-L-Dab(Dde)-OH, DDE = 1-(4,4-dimethyl-2,6-dioxocylohexylidene)ethyl

Fmoc-Thr(tBu)-OH
71989-35-0

Fmoc-Thr(tBu)-OH

Fmoc-D-Phe-OH
86123-10-6

Fmoc-D-Phe-OH

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid
125238-99-5

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid

trifluoroacetic acid
76-05-1

trifluoroacetic acid

Fmoc-L-Dab-OAllyl, Dab = 2,4-diaminobutyric acid
688316-86-1

Fmoc-L-Dab-OAllyl, Dab = 2,4-diaminobutyric acid

Fmoc-D-Ser(pg)-OH

Fmoc-D-Ser(pg)-OH

polymyxin S2 TFA salt

polymyxin S2 TFA salt

Conditions
ConditionsYield
Stage #1: Fmoc-L-Dab-OAllyl, Dab = 2,4-diaminobutyric acid With N-ethyl-N,N-diisopropylamine In dichloromethane for 2h; 2-chlorotrityl chloride resin;
Stage #2: With piperidine In N,N-dimethyl-formamide for 0.25h; Automated synthesizer;
Stage #3: isooctanoic acid; Fmoc-L-Dab(Dde)-OH, DDE = 1-(4,4-dimethyl-2,6-dioxocylohexylidene)ethyl; Fmoc-Thr(tBu)-OH; Fmoc-D-Phe-OH; (S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid; trifluoroacetic acid; Fmoc-D-Ser(pg)-OH Further stages;
31%
isooctanoic acid
929-10-2

isooctanoic acid

Fmoc-L-Dab(Dde)-OH, DDE = 1-(4,4-dimethyl-2,6-dioxocylohexylidene)ethyl

Fmoc-L-Dab(Dde)-OH, DDE = 1-(4,4-dimethyl-2,6-dioxocylohexylidene)ethyl

Fmoc-Thr(tBu)-OH
71989-35-0

Fmoc-Thr(tBu)-OH

N-(9-fluorenylmethoxycarbonyl)-D-leucine
35661-60-0, 126727-03-5, 114360-54-2

N-(9-fluorenylmethoxycarbonyl)-D-leucine

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid
125238-99-5

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid

trifluoroacetic acid
76-05-1

trifluoroacetic acid

Fmoc-L-Dab-OAllyl, Dab = 2,4-diaminobutyric acid
688316-86-1

Fmoc-L-Dab-OAllyl, Dab = 2,4-diaminobutyric acid

Fmoc-D-Ser(pg)-OH

Fmoc-D-Ser(pg)-OH

polymyxin D2 TFA salt

polymyxin D2 TFA salt

Conditions
ConditionsYield
Stage #1: Fmoc-L-Dab-OAllyl, Dab = 2,4-diaminobutyric acid With N-ethyl-N,N-diisopropylamine In dichloromethane for 2h; 2-chlorotrityl chloride resin;
Stage #2: With piperidine In N,N-dimethyl-formamide for 0.25h; Automated synthesizer;
Stage #3: isooctanoic acid; Fmoc-L-Dab(Dde)-OH, DDE = 1-(4,4-dimethyl-2,6-dioxocylohexylidene)ethyl; Fmoc-Thr(tBu)-OH; N-(9-fluorenylmethoxycarbonyl)-D-leucine; (S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid; trifluoroacetic acid; Fmoc-D-Ser(pg)-OH Further stages;
30%
Fmoc-Leu-OH
35661-60-0

Fmoc-Leu-OH

N-Fmoc L-Phe
35661-40-6

N-Fmoc L-Phe

N-(9-fluorenylmethoxycarbonyl)-S-trityl-L-cysteine
103213-32-7

N-(9-fluorenylmethoxycarbonyl)-S-trityl-L-cysteine

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid
125238-99-5

(S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid

N-α-(9-fluorenylmethyloxycarbonyl)-N-γ-tert-butyloxycarbonyl-D-2,4-diaminobutyric acid

N-α-(9-fluorenylmethyloxycarbonyl)-N-γ-tert-butyloxycarbonyl-D-2,4-diaminobutyric acid

C44H79N15O9S

C44H79N15O9S

Conditions
ConditionsYield
Stage #1: Fmoc-Leu-OH With N-ethyl-N,N-diisopropylamine; N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate In N,N-dimethyl-formamide at 50℃; for 0.0833333h; Microwave irradiation;
Stage #2: With piperidine In N,N-dimethyl-formamide at 75℃; for 0.1h; Microwave irradiation;
Stage #3: Fmoc-Leu-OH; N-Fmoc L-Phe; N-(9-fluorenylmethoxycarbonyl)-S-trityl-L-cysteine; (S)-4-tert-butoxycarbonylamino-2-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid; N-α-(9-fluorenylmethyloxycarbonyl)-N-γ-tert-butyloxycarbonyl-D-2,4-diaminobutyric acid Further stages;
30%

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