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Dayang Chem (Hangzhou) Co.,Ltd.

Dayangchem's 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. DayangChem can provide different quantities

L-Leucine tert-butyl ester hydrochloride Manufacturer/High quality/Best price/In stock

Cas:2748-02-9

Min.Order:1 Kilogram

FOB Price: $3.0

Type:Lab/Research institutions

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 L-Leucine t-butyl ester hydrochloride supplier in China

Cas:2748-02-9

Min.Order:1 Kilogram

Negotiable

Type:Manufacturers

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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 providi

Factory Supply Leu-Otbu.Hcl

Cas:2748-02-9

Min.Order:1

Negotiable

Type:Other

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Chemwill Asia Co., Ltd.

Our main production base is located in Xuzhou industry park. We are certified both to the ISO 9001 and ISO 14001 Standards, have a safety management system in place.Our R&D team masters core technology for process-design of target building block

L-Leucine tert-butyl ester hydrochloride

Cas:2748-02-9

Min.Order:5 Kiloliter

FOB Price: $1.2 / 5.0

Type:Manufacturers

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Leader Biochemical Group

About Product Technical Details L-Leucine tert-butyl ester h

China Largest factory Manufacturer Supply L-Leucine tert-butyl ester hydrochloride CAS 2748-02-9

Cas:2748-02-9

Min.Order:1 Kilogram

FOB Price: $1.0 / 3.0

Type:Lab/Research institutions

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Henan Tianfu Chemical Co., Ltd.

Our company was built in 2009 with an ISO certificate.In the past 5 years, we have grown up as a famous fine chemicals supplier in China and we had established stable business relationships with Samsung,LG,Merck,Thermo Fisher Scientific and so on.O

L-Leucine Tert Butyl Ester Hydrochloride 2748-02-9

Cas:2748-02-9

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Hebei Nengqian Chemical Import and Export Co., LTD

Our advantages: 1. All inquiries will be replied within 12 hours. 2. Dedication to quality, supply & service. 3. Strictly on selecting raw materials. 4. Reasonable & competitive price, fast lead time. 5. Sample is available for your eva

L-Leucine tert-butyl ester hydrochloride

Cas:2748-02-9

Min.Order:1 Kilogram

FOB Price: $9.0 / 99.0

Type:Trading Company

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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 2748-02-9 with competitive price

Cas:2748-02-9

Min.Order:1 Kilogram

FOB Price: $139.0 / 210.0

Type:Trading Company

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Henan Sinotech Import&Export Corporation

Product Name: H-Leu-OtBu.HCL CAS No.: 2748-02-9 MF: C10H21NO2 Appearance:Colorless clear liquid Storage:Preserve in well-closed, light-resistant and airtight containers. Package:25kg/drum Application:organic intermediates Transportation:By sea Port:Q

H-Leu-OtBu.HCL

Cas:2748-02-9

Min.Order:1 Kilogram

FOB Price: $1.0

Type:Other

inquiry

Hangzhou JINLAN Pharm-Drugs Technology Co., Ltd

We can provide GMP validation service that complies with SFDA, FDA, WHO and EU EMPA.Excellent registration team could help us easlily to register our products in different countries.If you and your customer are interested in some products or need CMO

L-Leucine tert-butyl ester hydrochloride manufacturer/supplier

Cas:2748-02-9

Min.Order:1 Gram

Negotiable

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

L-Leucine,1,1-dimethylethyl ester, hydrochloride (1:1) 2748-02-9

Cas:2748-02-9

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Qingdao Beluga Import and Export Co., LTD

L-Leucine tert-butyl ester hydrochloride CAS:2748-02-9 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

L-Leucine tert-butyl ester hydrochloride CAS:2748-02-9

Cas:2748-02-9

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

L-Leucine,1,1-dimethylethyl ester, hydrochloride (1:1)

Cas:2748-02-9

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

CAS NO.:2748-02-9

Cas:2748-02-9

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

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

L-Leucinet-butyl ester hydrochloride

Cas:2748-02-9

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Baoji Guokang Healthchem co.,ltd

Our company has been in existence for 10 years since its establishment. We have our own unique team. The company integrates independent research and development, production and sales. We have established famous brands at home and abroad. At present

H-Leu-OtBu.HCl

Cas:2748-02-9

Min.Order:1 Gram

FOB Price: $274.0

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

L-Leu-Otbu.Hcl cas no.2748-02-9 0.98

Cas:2748-02-9

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Afine Chemicals Limited

Company Introduction 1. Established in 2005, with two independent business divisions: Fine chemicals division; Pharmaceutical division. 2. Main product: Optical brightener Textile auxiliary Dye stuff Pigments

2748-02-9 (L-LEUCINE TERT-BUTYL ESTER HYDROCHLORIDE)

Cas:2748-02-9

Min.Order:1 Gram

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

L-Leucine tert-butyl ester hydrochloride

Cas:2748-02-9

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou Lingrui Chemical Co.,Ltd.

our strengths: 1: Fast and guaranteed shipment (TNT;EMS;FEDEX;DHL;UPS;EUB, special line) 2: Various payment items accepted (Btc; MoneyGram; WU) 3: Valued package (Paraffin coating; Double aluminum foil bag; Vacuum packaging) 4: Efficient delivery

L-Leucine tert-butyl ester hydrochloride in stock

Cas:2748-02-9

Min.Order:1 Metric Ton

Negotiable

Type:Other

inquiry

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 L-Leucine t-butyl ester hydrochloride

Cas:2748-02-9

Min.Order:10 Gram

FOB Price: $100.0

Type:Lab/Research institutions

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,

L-Leucine tert-butyl ester hydrochloride

Cas:2748-02-9

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,

H-Leu-OtBu.HCl

Cas:2748-02-9

Min.Order:1 Milligram

Negotiable

Type:Trading Company

inquiry

Hunan chemfish Pharmaceutical co.,Ltd

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

H-Leu-OtBu.HCl

Cas:2748-02-9

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/H-Leu-OtBu.HCl

Cas:2748-02-9

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

L-leucine Tert-butyl Ester Hydrochloride

Cas:2748-02-9

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

L-Leucine,1,1-dimethylethyl ester, hydrochloride (1:1)

Cas:2748-02-9

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

GIHI CHEMICALS CO.,LIMITED

Lower price, sample is available,SDS test documents are available,large stock in warehouseAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:Fine chemical intermediates, used as the main raw material for the synthe

L-Leucine tert-butyl ester hydrochloride

Cas:2748-02-9

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Kono Chem Co.,Ltd

high purity lowest priceAppearance:solid or liquid Storage:in sealed air resistant place Package:drum and bag Application:for pharma use Transportation:by sea or air Port:Beijing or Guangzhou

Leucine-Otbu HCl

Cas:2748-02-9

Min.Order:0

Negotiable

Type:Other

inquiry

JINHUA HUAYI CHEMICAL CO., LTD.

Jinhua huayi chemical co., ltd. is dedicated to the development, production and marketing of chemicals. On the basis of equality and mutual benefit, and under the principle of customer first, credit first, quality first, we are ready to join hands

H-Leu-Otbu.Hcl

Cas:2748-02-9

Min.Order:100 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Synthetic route

N-Cbz-L-Isoleucine
3160-59-6

N-Cbz-L-Isoleucine

L-leucine tert-butyl ester hydrochloride
2748-02-9

L-leucine tert-butyl ester hydrochloride

N-benzyloxycarbonyl-L-isoleucyl-L-leucine t-butyl ester
69531-03-9

N-benzyloxycarbonyl-L-isoleucyl-L-leucine t-butyl ester

Conditions
ConditionsYield
With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; triethylamine In dichloromethane; water; N,N-dimethyl-formamide at 20℃;100%
With 4-methyl-morpholine; (benzotriazo-1-yloxy)tris(dimethylamino)phosphonium hexafluorophosphate In N,N-dimethyl-formamide for 2h;88%
4-(1-ethyl-propylamino)-3-nitro-benzoic acid
691363-43-6

4-(1-ethyl-propylamino)-3-nitro-benzoic acid

L-leucine tert-butyl ester hydrochloride
2748-02-9

L-leucine tert-butyl ester hydrochloride

(S)-2-[4-(1-ethyl-propylamino)-3-nitro-benzoylamino]-4-methyl-pentanoic acid tert-butyl ester
1586791-35-6

(S)-2-[4-(1-ethyl-propylamino)-3-nitro-benzoylamino]-4-methyl-pentanoic acid tert-butyl ester

Conditions
ConditionsYield
With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; N-ethyl-N,N-diisopropylamine In N,N-dimethyl-formamide at 20℃; for 4h;100%
3-nitro-4-fluorobenzoic acid
453-71-4

3-nitro-4-fluorobenzoic acid

L-leucine tert-butyl ester hydrochloride
2748-02-9

L-leucine tert-butyl ester hydrochloride

(S)-2-(4-fluoro-3-nitro-benzoylamino)-4-methyl-pentanoic acid tert-butyl ester
1586791-32-3

(S)-2-(4-fluoro-3-nitro-benzoylamino)-4-methyl-pentanoic acid tert-butyl ester

Conditions
ConditionsYield
Stage #1: 3-nitro-4-fluorobenzoic acid With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; N-ethyl-N,N-diisopropylamine In N,N-dimethyl-formamide at 0℃; for 0.5h;
Stage #2: L-leucine tert-butyl ester hydrochloride With N-ethyl-N,N-diisopropylamine In N,N-dimethyl-formamide for 4h;
100%
With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; N-ethyl-N,N-diisopropylamine In N,N-dimethyl-formamide at 0 - 20℃; for 4h;
L-leucine tert-butyl ester hydrochloride
2748-02-9

L-leucine tert-butyl ester hydrochloride

Nα-(9-fluorenylmethyloxycarbonyl)-Nγ-2,2,4,6,7-pentamethyldihydrobenzofuran-5-sulfonyl-L-arginine

Nα-(9-fluorenylmethyloxycarbonyl)-Nγ-2,2,4,6,7-pentamethyldihydrobenzofuran-5-sulfonyl-L-arginine

Fmoc-Arg(Pbf)-Leu-Ot-Bu

Fmoc-Arg(Pbf)-Leu-Ot-Bu

Conditions
ConditionsYield
Stage #1: L-leucine tert-butyl ester hydrochloride; Nα-(9-fluorenylmethyloxycarbonyl)-Nγ-2,2,4,6,7-pentamethyldihydrobenzofuran-5-sulfonyl-L-arginine With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In tetrahydrofuran for 0.5h; Cooling with ice;
Stage #2: With 4-methyl-morpholine In tetrahydrofuran for 4h; Cooling with ice;
100%
L-leucine tert-butyl ester hydrochloride
2748-02-9

L-leucine tert-butyl ester hydrochloride

(2R,3R)-N-(tert-butoxycarbonyl)-3-amino-2-hydroxy-4-phenylbutanoic acid
77171-41-6

(2R,3R)-N-(tert-butoxycarbonyl)-3-amino-2-hydroxy-4-phenylbutanoic acid

N-[(2R,3R)-3-(tert-butoxycarbonyl)amino-2-hydroxy-4-phenylbutanoyl]-L-leucine tert-butyl ester
1242168-90-6

N-[(2R,3R)-3-(tert-butoxycarbonyl)amino-2-hydroxy-4-phenylbutanoyl]-L-leucine tert-butyl ester

Conditions
ConditionsYield
Stage #1: L-leucine tert-butyl ester hydrochloride; (2R,3R)-N-(tert-butoxycarbonyl)-3-amino-2-hydroxy-4-phenylbutanoic acid In tetrahydrofuran for 0.5h; Cooling with ice;
Stage #2: With benzotriazol-1-ol; triethylamine; dicyclohexyl-carbodiimide In tetrahydrofuran at 0℃; Concentration;
99.3%
L-leucine tert-butyl ester hydrochloride
2748-02-9

L-leucine tert-butyl ester hydrochloride

cycloheptan-3-on-1-yl 2,3,4,6-tetra-O-lauroyl-1-thio-β-D-galactopyranoside
215312-93-9

cycloheptan-3-on-1-yl 2,3,4,6-tetra-O-lauroyl-1-thio-β-D-galactopyranoside

Dodecanoic acid (2S,3R,4S,5S,6R)-2-[3-((S)-1-tert-butoxycarbonyl-3-methyl-butylamino)-cycloheptylsulfanyl]-4,5-bis-dodecanoyloxy-6-dodecanoyloxymethyl-tetrahydro-pyran-3-yl ester
215313-23-8

Dodecanoic acid (2S,3R,4S,5S,6R)-2-[3-((S)-1-tert-butoxycarbonyl-3-methyl-butylamino)-cycloheptylsulfanyl]-4,5-bis-dodecanoyloxy-6-dodecanoyloxymethyl-tetrahydro-pyran-3-yl ester

Conditions
ConditionsYield
With sodium cyanoborohydride In tetrahydrofuran; acetonitrile for 73h;99%
Fmoc-Pro-OH
71989-31-6

Fmoc-Pro-OH

L-leucine tert-butyl ester hydrochloride
2748-02-9

L-leucine tert-butyl ester hydrochloride

(9H-fluoren-9-yl)methyl (S)-2-((S)-1-tert-butoxy-4-methyl-1-oxopentan-2-ylcarbamoyl)pyrrolidine-1-carboxylate
82361-41-9

(9H-fluoren-9-yl)methyl (S)-2-((S)-1-tert-butoxy-4-methyl-1-oxopentan-2-ylcarbamoyl)pyrrolidine-1-carboxylate

Conditions
ConditionsYield
With 2,3,5-trimethyl-pyridine; HATU In dichloromethane; N,N-dimethyl-formamide at 20℃; for 3h; Inert atmosphere;99%
L-leucine tert-butyl ester hydrochloride
2748-02-9

L-leucine tert-butyl ester hydrochloride

cyanomethyl bromide
590-17-0

cyanomethyl bromide

(S)-tert-butyl 2-(cyanomethylamino)-4-methylpentanoate
1243692-13-8

(S)-tert-butyl 2-(cyanomethylamino)-4-methylpentanoate

Conditions
ConditionsYield
With N-ethyl-N,N-diisopropylamine In acetonitrile at 20℃;99%
L-leucine tert-butyl ester hydrochloride
2748-02-9

L-leucine tert-butyl ester hydrochloride

1,1'-carbonyldiimidazole
530-62-1

1,1'-carbonyldiimidazole

Fmoc-hydrazine hydrochloride

Fmoc-hydrazine hydrochloride

Fmoc-azaGly-Leu-OBut
872720-98-4

Fmoc-azaGly-Leu-OBut

Conditions
ConditionsYield
Stage #1: 1,1'-carbonyldiimidazole; Fmoc-hydrazine hydrochloride With N-ethyl-N,N-diisopropylamine In tetrahydrofuran at 20℃; for 1h; Cooling with ice;
Stage #2: L-leucine tert-butyl ester hydrochloride In N,N-dimethyl-formamide at 20℃; for 18h; Cooling with ice;
99%
Stage #1: 1,1'-carbonyldiimidazole; Fmoc-hydrazine hydrochloride With N-ethyl-N,N-diisopropylamine In tetrahydrofuran at 35℃; for 1h; Cooling with ice;
Stage #2: L-leucine tert-butyl ester hydrochloride In tetrahydrofuran; N,N-dimethyl-formamide at 35℃; for 18h; Cooling with ice;
99%
(5-nitro-1H-indol-1-yl)acetic acid
226901-50-4

(5-nitro-1H-indol-1-yl)acetic acid

L-leucine tert-butyl ester hydrochloride
2748-02-9

L-leucine tert-butyl ester hydrochloride

(S)-tert-butyl N-[(5-nitro-1H-indol-1-yl)acetyl] L-leucinate

(S)-tert-butyl N-[(5-nitro-1H-indol-1-yl)acetyl] L-leucinate

Conditions
ConditionsYield
With O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate; triethylamine In dichloromethane at 20℃; for 4h; Inert atmosphere;99%
(E)-2-hydroxyimino-propionic acid methyl ester
199434-50-9

(E)-2-hydroxyimino-propionic acid methyl ester

L-leucine tert-butyl ester hydrochloride
2748-02-9

L-leucine tert-butyl ester hydrochloride

C13H24N2O4

C13H24N2O4

Conditions
ConditionsYield
Stage #1: L-leucine tert-butyl ester hydrochloride With triethylamine In neat (no solvent) at 20℃; for 1h;
Stage #2: (E)-2-hydroxyimino-propionic acid methyl ester With niobium(V) ethoxide In neat (no solvent) at 50 - 80℃; for 24h;
99%
L-leucine tert-butyl ester hydrochloride
2748-02-9

L-leucine tert-butyl ester hydrochloride

(S)-3-tert-butoxycarbonylaminobutyric acid
158851-30-0

(S)-3-tert-butoxycarbonylaminobutyric acid

Boc-L-β-HoAla-L-Leu-O-t-Bu

Boc-L-β-HoAla-L-Leu-O-t-Bu

Conditions
ConditionsYield
With pentamethoxy tantalum; 1-(Trimethylsilyl)imidazole In neat (no solvent) at 50℃; for 48h; Inert atmosphere; Sealed tube;97%
L-leucine tert-butyl ester hydrochloride
2748-02-9

L-leucine tert-butyl ester hydrochloride

(S)-3-{[(tert-butoxy)carbonyl]amino}-5-(methylsulfanyl)pentanoic acid
244251-20-5

(S)-3-{[(tert-butoxy)carbonyl]amino}-5-(methylsulfanyl)pentanoic acid

Boc-L-β-HoMet-L-Leu-O-t-Bu

Boc-L-β-HoMet-L-Leu-O-t-Bu

Conditions
ConditionsYield
With pentamethoxy tantalum; 1-(Trimethylsilyl)imidazole In neat (no solvent) at 40℃; for 48h; Inert atmosphere; Sealed tube;97%
L-leucine tert-butyl ester hydrochloride
2748-02-9

L-leucine tert-butyl ester hydrochloride

L-N-t-butoxycarbonylpyroglutamic acid
53100-44-0

L-N-t-butoxycarbonylpyroglutamic acid

Boc-pyroGlu-Leu-OtBu

Boc-pyroGlu-Leu-OtBu

Conditions
ConditionsYield
With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; triethylamine In N,N-dimethyl-formamide at 0 - 20℃; for 12h;96%
With benzotriazol-1-ol; triethylamine In N,N-dimethyl-formamide for 12h; Cooling with ice;88%
L-leucine tert-butyl ester hydrochloride
2748-02-9

L-leucine tert-butyl ester hydrochloride

2-[(2S)-N-[(benzyloxy)carbonyl]pyrrolidin-2-yl]-2-hydroxyacetic acid

2-[(2S)-N-[(benzyloxy)carbonyl]pyrrolidin-2-yl]-2-hydroxyacetic acid

(S)-2-[((S)-1-tert-Butoxycarbonyl-3-methyl-butylcarbamoyl)-hydroxy-methyl]-pyrrolidine-1-carboxylic acid benzyl ester

(S)-2-[((S)-1-tert-Butoxycarbonyl-3-methyl-butylcarbamoyl)-hydroxy-methyl]-pyrrolidine-1-carboxylic acid benzyl ester

Conditions
ConditionsYield
With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; triethylamine In N,N-dimethyl-formamide 1.) 0 deg C, 2 h, 2.) room temperature;95.6%
L-leucine tert-butyl ester hydrochloride
2748-02-9

L-leucine tert-butyl ester hydrochloride

2,2-dimethylcyclohexan-5-on-1-yl 2,3,4,6-tetra-O-lauroyl-1-thio-β-D-galactopyranoside
215312-92-8

2,2-dimethylcyclohexan-5-on-1-yl 2,3,4,6-tetra-O-lauroyl-1-thio-β-D-galactopyranoside

Dodecanoic acid (2S,3R,4S,5S,6R)-2-[5-((S)-1-tert-butoxycarbonyl-3-methyl-butylamino)-2,2-dimethyl-cyclohexylsulfanyl]-4,5-bis-dodecanoyloxy-6-dodecanoyloxymethyl-tetrahydro-pyran-3-yl ester
215313-22-7

Dodecanoic acid (2S,3R,4S,5S,6R)-2-[5-((S)-1-tert-butoxycarbonyl-3-methyl-butylamino)-2,2-dimethyl-cyclohexylsulfanyl]-4,5-bis-dodecanoyloxy-6-dodecanoyloxymethyl-tetrahydro-pyran-3-yl ester

Conditions
ConditionsYield
With sodium cyanoborohydride In tetrahydrofuran; acetonitrile for 73h;95%
2,5-dioxopyrrolidin-1-yl (2-(vinylsulfonyl)ethyl)carbonate
918822-70-5

2,5-dioxopyrrolidin-1-yl (2-(vinylsulfonyl)ethyl)carbonate

L-leucine tert-butyl ester hydrochloride
2748-02-9

L-leucine tert-butyl ester hydrochloride

2-(2-ethenesulfonyl-ethoxycarbonylamino)-4-methyl-pentanoic acid tert-butyl ester
918822-82-9

2-(2-ethenesulfonyl-ethoxycarbonylamino)-4-methyl-pentanoic acid tert-butyl ester

Conditions
ConditionsYield
With sodium hydrogencarbonate In water; acetonitrile at 20℃; for 0.25h;94%
L-leucine tert-butyl ester hydrochloride
2748-02-9

L-leucine tert-butyl ester hydrochloride

cyclohexan-2-on-1-yl 2,3,4,6-tetra-O-lauroyl-1-thio-β-D-galactopyranoside
215312-94-0

cyclohexan-2-on-1-yl 2,3,4,6-tetra-O-lauroyl-1-thio-β-D-galactopyranoside

Dodecanoic acid (2S,3R,4S,5S,6R)-2-[2-((S)-1-tert-butoxycarbonyl-3-methyl-butylamino)-cyclohexylsulfanyl]-4,5-bis-dodecanoyloxy-6-dodecanoyloxymethyl-tetrahydro-pyran-3-yl ester
215313-24-9

Dodecanoic acid (2S,3R,4S,5S,6R)-2-[2-((S)-1-tert-butoxycarbonyl-3-methyl-butylamino)-cyclohexylsulfanyl]-4,5-bis-dodecanoyloxy-6-dodecanoyloxymethyl-tetrahydro-pyran-3-yl ester

Conditions
ConditionsYield
With sodium cyanoborohydride In tetrahydrofuran; acetonitrile for 73h;93%
1-(4-fluorophenyl)-3-(R)-[2-(4-fluorobenzoyl)ethyl]-4-(S)-[4-(N-[(R)-1-carboxy-3-methylbutyl]carbamoylmethoxy)phenyl]azetidin-2-one
857506-64-0

1-(4-fluorophenyl)-3-(R)-[2-(4-fluorobenzoyl)ethyl]-4-(S)-[4-(N-[(R)-1-carboxy-3-methylbutyl]carbamoylmethoxy)phenyl]azetidin-2-one

L-leucine tert-butyl ester hydrochloride
2748-02-9

L-leucine tert-butyl ester hydrochloride

1-(4-fluorophenyl)-3-(R)-[2-(4-fluorobenzoyl)ethyl]-4-(S)-{4-[N-((R)-1-{N-[1-(S)-(t-butoxycarbonyl)-3-(methyl)butyl]carbamoyl}-3-methylbutyl)carbamoylmethoxy]phenyl}azetidin-2-one
857506-66-2

1-(4-fluorophenyl)-3-(R)-[2-(4-fluorobenzoyl)ethyl]-4-(S)-{4-[N-((R)-1-{N-[1-(S)-(t-butoxycarbonyl)-3-(methyl)butyl]carbamoyl}-3-methylbutyl)carbamoylmethoxy]phenyl}azetidin-2-one

Conditions
ConditionsYield
With 4-methyl-morpholine; O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate In dichloromethane at 20℃; for 1h;93%
L-leucine tert-butyl ester hydrochloride
2748-02-9

L-leucine tert-butyl ester hydrochloride

Nα-(allyloxycarbonyl)-Nε-(benzyloxycarbonyl)-L-Lysine

Nα-(allyloxycarbonyl)-Nε-(benzyloxycarbonyl)-L-Lysine

tert-butyl Nα-(allyloxy)carbonyl-Nε-(benzyloxycarbonyl)-L-Lysyl-L-Leucinate

tert-butyl Nα-(allyloxy)carbonyl-Nε-(benzyloxycarbonyl)-L-Lysyl-L-Leucinate

Conditions
ConditionsYield
Stage #1: Nα-(allyloxycarbonyl)-Nε-(benzyloxycarbonyl)-L-Lysine With 4-methyl-morpholine; isobutyl chloroformate In tetrahydrofuran at -20℃; for 0.25h;
Stage #2: L-leucine tert-butyl ester hydrochloride In tetrahydrofuran at 20℃; for 18h;
93%
L-leucine tert-butyl ester hydrochloride
2748-02-9

L-leucine tert-butyl ester hydrochloride

2-Bromoacetyl bromide
598-21-0

2-Bromoacetyl bromide

C12H22BrNO3
1205615-78-6

C12H22BrNO3

Conditions
ConditionsYield
With potassium carbonate In dichloromethane; water at -0.16 - 20℃;91.8%
C22H26N6O8
1026419-47-5

C22H26N6O8

L-leucine tert-butyl ester hydrochloride
2748-02-9

L-leucine tert-butyl ester hydrochloride

C21H34N4O6
958844-71-8

C21H34N4O6

Conditions
ConditionsYield
With N-ethyl-N,N-diisopropylamine In dichloromethane at 20℃; for 72h; Inert atmosphere;91%
di(succinimido) carbonate
74124-79-1

di(succinimido) carbonate

benzophenone hydrazone
5350-57-2

benzophenone hydrazone

L-leucine tert-butyl ester hydrochloride
2748-02-9

L-leucine tert-butyl ester hydrochloride

tert-butyl ((2-diphenylmethylene)hydrazine-1-carbonyl)-L-leucinate

tert-butyl ((2-diphenylmethylene)hydrazine-1-carbonyl)-L-leucinate

Conditions
ConditionsYield
Stage #1: di(succinimido) carbonate; benzophenone hydrazone In dichloromethane; N,N-dimethyl-formamide at 0 - 20℃; for 0.75h; Inert atmosphere;
Stage #2: L-leucine tert-butyl ester hydrochloride With N-ethyl-N,N-diisopropylamine In dichloromethane; N,N-dimethyl-formamide at 0 - 20℃; for 16h; Inert atmosphere;
91%
L-leucine tert-butyl ester hydrochloride
2748-02-9

L-leucine tert-butyl ester hydrochloride

benzyl isothiocyanate
3173-56-6

benzyl isothiocyanate

N-(benzylcarbamoyl)-leucine tert-butyl ester

N-(benzylcarbamoyl)-leucine tert-butyl ester

Conditions
ConditionsYield
With diisopropylamine In dichloromethane at 0 - 20℃; for 0.5h;90%
N-phenyl-N-methylcarbamoyl chloride
4285-42-1

N-phenyl-N-methylcarbamoyl chloride

L-leucine tert-butyl ester hydrochloride
2748-02-9

L-leucine tert-butyl ester hydrochloride

methyl (S)-4-methyl-2-{[methyl(phenyl)carbamoyl]amino}pentanoate

methyl (S)-4-methyl-2-{[methyl(phenyl)carbamoyl]amino}pentanoate

Conditions
ConditionsYield
With dmap; triethylamine In 1,2-dimethoxyethane for 2h; Inert atmosphere; Reflux;90%
L-leucine tert-butyl ester hydrochloride
2748-02-9

L-leucine tert-butyl ester hydrochloride

(S)-2-[[[(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)methyl]diphenylsilanyl]methyl]-4-methylpentanoic acid
503066-39-5

(S)-2-[[[(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)methyl]diphenylsilanyl]methyl]-4-methylpentanoic acid

(S)-2-[(S)-2-[[[(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)methyl]diphenylsilanyl]methyl]-4-methylpentanoylamino]-4-methylpentanoic acid tert-butyl ester
561294-36-8

(S)-2-[(S)-2-[[[(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)methyl]diphenylsilanyl]methyl]-4-methylpentanoylamino]-4-methylpentanoic acid tert-butyl ester

Conditions
ConditionsYield
With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; N-ethyl-N,N-diisopropylamine In dichloromethane at 0 - 20℃; for 25h;89%
1-(1-ethyl-propyl)-2-(tetrahydro-furan-2-ylmethyl)-1H-benzoimidazole-5-carboxylic acid
1586791-17-4

1-(1-ethyl-propyl)-2-(tetrahydro-furan-2-ylmethyl)-1H-benzoimidazole-5-carboxylic acid

L-leucine tert-butyl ester hydrochloride
2748-02-9

L-leucine tert-butyl ester hydrochloride

(S)-2-{[1-(1-ethyl-propyl)-2-(tetrahydro-furan-2-ylmethyl)-1H-benzoimidazole-5-carbonyl]-amino}-4-methyl-pentanoic acid tert-butyl ester
1586791-16-3

(S)-2-{[1-(1-ethyl-propyl)-2-(tetrahydro-furan-2-ylmethyl)-1H-benzoimidazole-5-carbonyl]-amino}-4-methyl-pentanoic acid tert-butyl ester

Conditions
ConditionsYield
With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; N-ethyl-N,N-diisopropylamine In N,N-dimethyl-formamide at 0 - 20℃; for 16h;88%
Stage #1: 1-(1-ethyl-propyl)-2-(tetrahydro-furan-2-ylmethyl)-1H-benzoimidazole-5-carboxylic acid With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; N-ethyl-N,N-diisopropylamine In N,N-dimethyl-formamide at 0℃; for 0.25h;
Stage #2: L-leucine tert-butyl ester hydrochloride With N-ethyl-N,N-diisopropylamine In N,N-dimethyl-formamide at 20℃; for 16h;
88%
Nα-(allyloxycarbonyl)-Nε-(benzyloxycarbonyl)-D-Lysine

Nα-(allyloxycarbonyl)-Nε-(benzyloxycarbonyl)-D-Lysine

L-leucine tert-butyl ester hydrochloride
2748-02-9

L-leucine tert-butyl ester hydrochloride

tert-butyl Nα-(allyloxy)carbonyl-Nε-((benzyloxy)carbonyl)-D-Lysyl-L-Leucinate

tert-butyl Nα-(allyloxy)carbonyl-Nε-((benzyloxy)carbonyl)-D-Lysyl-L-Leucinate

Conditions
ConditionsYield
Stage #1: Nα-(allyloxycarbonyl)-Nε-(benzyloxycarbonyl)-D-Lysine With 4-methyl-morpholine; isobutyl chloroformate In tetrahydrofuran at -20℃; for 0.25h;
Stage #2: L-leucine tert-butyl ester hydrochloride In tetrahydrofuran at 20℃; for 18h;
88%
L-3-phenyllactic acid
20312-36-1

L-3-phenyllactic acid

L-leucine tert-butyl ester hydrochloride
2748-02-9

L-leucine tert-butyl ester hydrochloride

tert-butyl ((S)-2-hydroxy-3-phenylpropanoyl)-L-leucinate

tert-butyl ((S)-2-hydroxy-3-phenylpropanoyl)-L-leucinate

Conditions
ConditionsYield
With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; N-ethyl-N,N-diisopropylamine In dichloromethane at 0 - 20℃;88%
L-leucine tert-butyl ester hydrochloride
2748-02-9

L-leucine tert-butyl ester hydrochloride

N-(tert-butoxycarbonyl)-N1-(4-iodobenzyl)-L-tryptophan

N-(tert-butoxycarbonyl)-N1-(4-iodobenzyl)-L-tryptophan

tert-butyl N-(tert-butoxycarbonyl)-N1-(4-iodobenzyl)-L-tryptophyl-L-leucinate

tert-butyl N-(tert-butoxycarbonyl)-N1-(4-iodobenzyl)-L-tryptophyl-L-leucinate

Conditions
ConditionsYield
With O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate; N-ethyl-N,N-diisopropylamine In acetonitrile at 20℃; for 18h;88%

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