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
Cas:62965-35-9
Min.Order:10 Gram
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Type:Lab/Research institutions
inquiryAs a leading and professional manufacturer of APIs and API intermediates in China,Anhui Dexinjia Biopharm Co., Ltd founded in 2006, Except for the R&D center, our company has built a close cooperation relation with Chinese Academy of Sciences, T
Synonym:N-(tert-Butoxycarbonyl)-L-tert-leucine; (S)-N-Boc-2-Amino-3,3-dimethylbutyric acid
Cas:62965-35-9
Min.Order:0 Metric Ton
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Type:Lab/Research institutions
inquiryDayangchem'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
Cas:62965-35-9
Min.Order:1 Kilogram
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inquiryWelcome 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
Cas:62965-35-9
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Type:Manufacturers
inquiryUnique advantages of N-Boc-L-tert-Leucine Cas 62965-35-9 Guaranteed purity High quality & competitive price Quality control Fast feedback Prompt shipment Appearance:White to almost white crystalline powder Storage:cool dry place Package:25kg
Cas:62965-35-9
Min.Order:25 Kilogram
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Type:Trading Company
inquiryHebei yanxi chemical co. LTD. has expanded a compositive entity from initially only as a small manufacturer. The company dedicated to the development, production and marketing of chemicals. After many years of efforts, we have established stable
Cas:62965-35-9
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FOB Price: $1.0 / 2.0
Type:Manufacturers
inquiryhigh quality Appearance:White or off white powder Storage:Sealed, dry, microtherm , avoid light and smell. Package:According to the demand of customer Application:Organic synthesis Transportation:by air or by sea Port:shanghai
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
Cas:62965-35-9
Min.Order:5 Kiloliter
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Type:Manufacturers
inquiryOur 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
Cas:62965-35-9
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inquiryOur advantages: 1. High quality and competitive price: 1) Standard: BP/USP/EP/ enterprise standard 2) All purity ≥99% 3) We are manufacturers and can provide high quality products at factory prices. 2. Fast and safe delivery 1) The package c
Cas:62965-35-9
Min.Order:1 Kilogram
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Type:Trading Company
inquiryWITH 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
Cas:62965-35-9
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Type:Trading Company
inquiry1. Product advantages ♦ High purity, all above 98.5%, no impurities after dissolution ♦ We will test each batch to ensure quality ♦ OEM and private brand services designed for free ♦ Various cap colors available ♦ W
Cas:62965-35-9
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Type:Trading Company
inquiryProduct name boc-L-tert-leucine Alias Boc-Leu-OH; N-BOC-L-tert-Leucine; Boc-tBu-Gly-OH; Boc-Tle-OH; NALPHA-tert-Butoxycarbonyl-L-tert-leucine; N-(tert-Butoxycarbonyl)-L-leucine; (2S)-2-[(tert-butoxy
1. Guaranteed purity; 2. Large quantity in stock; 3. Largest manufacturer; 4. Best service after shipment with email; 5. High quality & competitive price; Appearance:White Crystalline Powder Storage:Store in sealed conta
Cas:62965-35-9
Min.Order:10 Gram
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Type:Other
inquiry1.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
Cas:62965-35-9
Min.Order:1 Kilogram
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Type:Lab/Research institutions
inquiryOur 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 prese
Cas:62965-35-9
Min.Order:1 Kilogram
FOB Price: $68.0 / 75.0
Type:Trading Company
inquiryN-Boc-L-tert-Leucine CAS:62965-35-9 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 quality organic inte
Cas:62965-35-9
Min.Order:1 Gram
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Type:Lab/Research institutions
inquiryHello, 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
Cas:62965-35-9
Min.Order:1 Kilogram
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Type:Lab/Research institutions
inquiry1,we produce and sell good chemicals around the world. 2,our success rate is about 95%. this means, if customer order is accepted, the probability that the customer will obtain the ordered substances, is 95%. 3,our staff consists of highly qualifie
Cas:62965-35-9
Min.Order:1 Kilogram
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Type:Lab/Research institutions
inquiryHenan 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
1. Timely and efficient service to ensure communication with customers 2. Produce products of different specifications and sizes according to your requirements. 3. Quality procedures and standards recognized by SGS. Advanced plant equipment ensures
Cas:62965-35-9
Min.Order:1 Kilogram
FOB Price: $20.0 / 30.0
Type:Lab/Research institutions
inquiry1) For products exported we can offer COA Certificate and official PI. 2) We are manufacturer with own lab and factory, can provide high quality products with factory price. 3) Products can be sent out in 24 hours after payment. Tracking number avai
Cas:62965-35-9
Min.Order:100 Kilogram
Negotiable
Type:Trading Company
inquiryPRODUCT DETAILS
Cas:62965-35-9
Min.Order:500 Kilogram
FOB Price: $1.0 / 2.0
Type:Lab/Research institutions
inquiryOur Advantage: high quality with competitive price High quality standard: BP/USP/EP Enterprise standard All purity customized Fast and safe delivery We have reliable forwarder who can help us deliver our goods more fast and safe. We
Hangzhou KeyingChem Co., Ltd. exported this product to many countries and regions at best price. If you are looking for the material’s manufacturer or supplier in China, KeyingChem is your best choice. Pls contact with us freely for getting det
Cas:62965-35-9
Min.Order:0 Metric Ton
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Type:Lab/Research institutions
inquiryOur 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
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
Cas:62965-35-9
Min.Order:0 Metric Ton
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Type:Other
inquiryJ&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
Chemlyte Solutions believe that customers and suppliers deserve much more than what traditional distributors can offer. To grow in today s fast-paced and increasingly competitive market it is essential to be able to quickly adapt to market forces eff
Cas:62965-35-9
Min.Order:100 Gram
Negotiable
Type:Other
inquiryL-tert-Leucine
di-tert-butyl dicarbonate
N-tert-butyloxycarbonyl-L-tert-leucine
Conditions | Yield |
---|---|
With triethylamine In methanol at 0 - 5℃; | 100% |
With triethylamine In methanol at 0 - 5℃; | 100% |
With sodium hydroxide In 1,4-dioxane at 20℃; for 12h; | 100% |
L-tert-Leucine
di-tert-butyl dicarbonate
N-tert-butyloxycarbonyl-L-tert-leucine
Conditions | Yield |
---|---|
With triethylamine In 1,4-dioxane; water | 99% |
With triethylamine In 1,4-dioxane; water | 99% |
A
N-tert-butyloxycarbonyl-L-tert-leucine
B
N-Boc-D-tert-leucine methyl ester
Conditions | Yield |
---|---|
With Bacillus licheniformis In water at 35℃; for 23h; pH=7.8; | A 93% B n/a |
With Bacillus licheniformis In water at 35℃; for 18h; pH=7.8; | A n/a B 82% |
N-Boc-L-tert-leucinol
N-tert-butyloxycarbonyl-L-tert-leucine
Conditions | Yield |
---|---|
With sodium hypochlorite; 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical; Isopropyl acetate; sodium hydrogencarbonate; sodium bromide at 0 - 25℃; | 73% |
A
N-tert-butyloxycarbonyl-L-tert-leucine
B
(R)-2-(tert-butoxycarbonylamino)-3,3-dimethylbutanoic acid
Conditions | Yield |
---|---|
With C28H30N3O2(1+)*Br(1-); sodium hydroxide In chloroform at 0℃; for 24h; | A 52% B n/a |
N-(tert-butyloxycarbonyl) azide
L-tert-Leucine
N-tert-butyloxycarbonyl-L-tert-leucine
Conditions | Yield |
---|---|
With sodium hydroxide In 1,4-dioxane |
L-tert-Leucine
2-(tert-Butoxycarbonyloxyimino)-2-phenylacetonitrile
N-tert-butyloxycarbonyl-L-tert-leucine
Conditions | Yield |
---|---|
With triethylamine In 1,4-dioxane; water for 4h; Ambient temperature; |
(4S,5R)-3-tert-butoxycarbonyl-4-tert-butyl-5-methoxy-2-oxazolidinone
N-tert-butyloxycarbonyl-L-tert-leucine
Conditions | Yield |
---|---|
With potassium hydroxide; potassium permanganate In water; tert-butyl alcohol |
A
N-tert-butyloxycarbonyl-L-tert-leucine
B
(R)-2-(tert-butoxycarbonylamino)-3,3-dimethylbutanoic acid
C
N-Boc-D-tert-leucine methyl ester
Conditions | Yield |
---|---|
With subtilisin In water at 35℃; for 18h; pH=7.5; |
A
N-tert-butyloxycarbonyl-L-tert-leucine
B
N-Boc-D-tert-leucine methyl ester
C
2-tert-butoxycarbonylamino-3,3-dimethylbutyric acid methyl ester
Conditions | Yield |
---|---|
With subtilisin In water at 35℃; for 15h; pH=7.5; |
(4S,5R)-4-tert-butyl-5-methoxy-2-oxazolidinone
N-tert-butyloxycarbonyl-L-tert-leucine
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: Et3N; DMAP / CH2Cl2 / 2 h / 20 °C 2: KMnO4; KOH / 2-methyl-propan-2-ol; H2O View Scheme |
di-tert-butyl dicarbonate
tert-butylaminoacetic acid
N-tert-butyloxycarbonyl-L-tert-leucine
Conditions | Yield |
---|---|
In tetrahydrofuran; sodium hydroxide |
L-tert-Leucine
N-tert-butyloxycarbonyl-L-tert-leucine
Conditions | Yield |
---|---|
With hydrogenchloride; sodium hydroxide In 1,4-dioxane; water; ethyl acetate |
(S)-ethyl 3,3-dimethyl-2-[(S)-phenylmethanesulfinamido]butanoate
N-tert-butyloxycarbonyl-L-tert-leucine
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: hydrogenchloride / methanol 2: triethylamine 3: lithium hydroxide / water View Scheme |
N-tert-butyloxycarbonyl-L-tert-leucine
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: tetrahydrofuran / 12 h / -20 - 20 °C / Inert atmosphere 2: hydrogenchloride / methanol 3: triethylamine 4: lithium hydroxide / water View Scheme |
C13H25NO4
N-tert-butyloxycarbonyl-L-tert-leucine
Conditions | Yield |
---|---|
With lithium hydroxide In water |
di-tert-butyl dicarbonate
ethyl (S)-2-amino-3,3-dimethylbutanoate
N-tert-butyloxycarbonyl-L-tert-leucine
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: triethylamine 2: lithium hydroxide / water View Scheme |
N-tert-butyloxycarbonyl-L-tert-leucine
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: thionyl chloride / methanol 2: triethylamine 3: lithium hydroxide / water View Scheme |
(R)-1-chloro-3,3-dimethyl-2-butanol
N-tert-butyloxycarbonyl-L-tert-leucine
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: di-isopropyl azodicarboxylate; triphenylphosphine / toluene / 15 h / -5 - 5 °C / Heating 2: hydrogenchloride; water / 15 h / Reflux 3: sodium hydroxide / water; ethanol / 40 - 50 °C 4: sodium hydrogencarbonate; sodium bromide; 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical; Isopropyl acetate; sodium hypochlorite / 0 - 25 °C View Scheme |
N-tert-butyloxycarbonyl-L-tert-leucine
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: hydrogenchloride; water / 15 h / Reflux 2: sodium hydroxide / water; ethanol / 40 - 50 °C 3: sodium hydrogencarbonate; sodium bromide; 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical; Isopropyl acetate; sodium hypochlorite / 0 - 25 °C View Scheme |
N-tert-butyloxycarbonyl-L-tert-leucine
(S)-tert-butyl (1-amino-3,3-dimethyl-1-oxobutan-2-yl)carbamate
Conditions | Yield |
---|---|
With ammonium chloride; benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; N-ethyl-N,N-diisopropylamine In N,N-dimethyl-formamide at 20℃; for 16h; | 100% |
With 4-methyl-morpholine; ammonium chloride; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In N,N-dimethyl-formamide at 20℃; | |
Stage #1: N-tert-butyloxycarbonyl-L-tert-leucine With 4-methyl-morpholine; isobutyl chloroformate In tetrahydrofuran at -20℃; for 0.5h; Stage #2: With ammonium hydroxide In tetrahydrofuran at -20 - 20℃; | |
With pyridine; di-tert-butyl dicarbonate; ammonium bicarbonate |
N-tert-butyloxycarbonyl-L-tert-leucine
L-4-hydroxyproline methyl ester hydrochloride
(2S,4R)-methyl 1-{(S)-2-[(tert-butoxycarbonyl)amino]-3,3-dimethylbutanoyl}-4-hydroxypyrrolidine-2-carboxylate
Conditions | Yield |
---|---|
With N-ethyl-N,N-diisopropylamine; HATU In dichloromethane at 0 - 20℃; | 100% |
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 0 - 20℃; for 16h; | 98% |
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 12h; | 92% |
N-tert-butyloxycarbonyl-L-tert-leucine
benzyl bromide
(S)-benzyl 2-(tert-butoxycarbonylamino)-3,3-dimethylbutanoic acid
Conditions | Yield |
---|---|
With potassium carbonate In N,N-dimethyl-formamide at 20℃; for 72h; | 100% |
With 1,8-diazabicyclo[5.4.0]undec-7-ene In acetonitrile at 0 - 22℃; for 3.5h; | 98% |
With 1,8-diazabicyclo[5.4.0]undec-7-ene In acetonitrile at 0 - 20℃; for 3.08333h; | 93% |
With potassium carbonate In N,N-dimethyl-formamide at 20℃; for 72h; |
4R-(7-methoxy-2-pyrazol-1-yl-quinolin-4-yloxy)-pyrrolidine-2S-carboxylic acid methyl ester hydrochloride
N-tert-butyloxycarbonyl-L-tert-leucine
1-(2S-tert-butoxycarbonylamino-3,3-dimethylbutyryl)-4R-(7-methoxy-2-pyrazol-1-yl-quinolin-4-yloxy)-pyrrolidine-2S-carboxylic acid methyl ester
Conditions | Yield |
---|---|
With N-ethyl-N,N-diisopropylamine; HATU In dichloromethane; N,N-dimethyl-formamide at 20℃; for 16h; | 100% |
N-tert-butyloxycarbonyl-L-tert-leucine
Conditions | Yield |
---|---|
With N-ethyl-N,N-diisopropylamine; HATU In dichloromethane; N,N-dimethyl-formamide at 20℃; for 16h; | 100% |
N-tert-butyloxycarbonyl-L-tert-leucine
methyl iodide
methyl (2S)-3,3-Dimethyl-2-[methyl-[(2-methylpropan-2-yl)oxycarbonyl]amino]butanoate
Conditions | Yield |
---|---|
With silver(l) oxide In N,N-dimethyl-formamide at 45℃; Inert atmosphere; | 100% |
Stage #1: N-tert-butyloxycarbonyl-L-tert-leucine With sodium hydride In N,N-dimethyl-formamide at 0 - 20℃; for 0.5h; Inert atmosphere; Stage #2: methyl iodide In N,N-dimethyl-formamide at 20℃; for 8h; | 89% |
With sodium hydride In N,N-dimethyl-formamide at 0 - 20℃; |
N-tert-butyloxycarbonyl-L-tert-leucine
N,N-dimethylammonium chloride
(S)-tert-butyl 1-(dimethylamino)-3,3-dimethyl-1-oxobutan-2-ylcarbamate
Conditions | Yield |
---|---|
Stage #1: N-tert-butyloxycarbonyl-L-tert-leucine With HBTU In dichloromethane for 0.0333333h; Inert atmosphere; Stage #2: N,N-dimethylammonium chloride With N-ethyl-N,N-diisopropylamine In dichloromethane for 1.5h; Inert atmosphere; | 100% |
With triethylamine; dicyclohexyl-carbodiimide In dichloromethane at 20℃; for 12h; Cooling with ice; | 91% |
With 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; N-ethyl-N,N-diisopropylamine In dichloromethane at 20℃; for 18h; | |
With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; N-ethyl-N,N-diisopropylamine In dichloromethane at 0 - 20℃; for 3h; |
(R)-3-[(2S,3S)-2-amino-3-phenylbutyrylamino]-3-(thiazol-2-yl)propanoic acid methyl ester
N-tert-butyloxycarbonyl-L-tert-leucine
N-{N'-tert-butoxycarbonyl-L-tert-leucyl-[(3S)-3-methyl-L-phenylalanyl]}-3-amino-3-(thiazol-2-yl)propanoic acid methyl ester
Conditions | Yield |
---|---|
With O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate; N-ethyl-N,N-diisopropylamine In dichloromethane; N,N-dimethyl-formamide at 0 - 20℃; | 100% |
With N-ethyl-N,N-diisopropylamine; O-(benzotriazol-1-yl)-N,N,N,N-tetramethyluroniumhexafluorophosphate In dichloromethane; N,N-dimethyl-formamide | 100% |
N-tert-butyloxycarbonyl-L-tert-leucine
1,2-diamino-benzene
N-tert-butoxycarbonyl-L-tert-leucine 2-aminoanilide
Conditions | Yield |
---|---|
With O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate; N-ethyl-N,N-diisopropylamine In dichloromethane at 0 - 20℃; | 100% |
Conditions | Yield |
---|---|
Stage #1: N-tert-butyloxycarbonyl-L-tert-leucine With N-ethyl-N,N-diisopropylamine; HATU In dichloromethane at 20℃; for 0.166667h; Stage #2: 4-nitro-benzoic acid 5-(1-methoxycarbonyl-2-vinylcyclopropylcarbamoyl)pyrrolidin-3-yl ester hydrochloride With N-ethyl-N,N-diisopropylamine In dichloromethane for 15h; Stage #3: N-tert-butyloxycarbonyl-L-tert-leucine With N-ethyl-N,N-diisopropylamine; HATU In dichloromethane for 5h; | 100% |
N-tert-butyloxycarbonyl-L-tert-leucine
Conditions | Yield |
---|---|
With 4-methyl-morpholine; 1-hydroxy-7-aza-benzotriazole; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dichloromethane at 0 - 20℃; Inert atmosphere; | 100% |
With 4-methyl-morpholine; 1-hydroxy-7-aza-benzotriazole; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In N,N-dimethyl-formamide at 20℃; |
N-tert-butyloxycarbonyl-L-tert-leucine
para-bromophenacyl bromide
Conditions | Yield |
---|---|
With N-ethyl-N,N-diisopropylamine In acetonitrile at 20℃; for 2h; Cooling with ice; | 100% |
N-tert-butyloxycarbonyl-L-tert-leucine
benzyl alcohol
(S)-benzyl 2-(tert-butoxycarbonylamino)-3,3-dimethylbutanoic acid
Conditions | Yield |
---|---|
With dmap; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; N-ethyl-N,N-diisopropylamine In dichloromethane at 20℃; for 12h; | 99% |
Stage #1: N-tert-butyloxycarbonyl-L-tert-leucine With 2-(tert-Butoxycarbonyloxyimino)-2-phenylacetonitrile; triethylamine In 1,4-dioxane Stage #2: benzyl alcohol With dmap; N-(3-dimethylaminopropyl)-N-ethylcarbodiimide In dichloromethane at 0℃; | |
With dmap; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride at 0℃; |
N-tert-butyloxycarbonyl-L-tert-leucine
methylamine
(S)-(2,2-dimethyl-1-methylcarbamoylpropyl)carbamic acid tert-butyl ester
Conditions | Yield |
---|---|
With N-ethyl-N,N-diisopropylamine; HATU In DMF (N,N-dimethyl-formamide) at 0 - 20℃; for 4h; | 99% |
Stage #1: methylamine With 1-hydroxy-pyrrolidine-2,5-dione In methanol; N,N-dimethyl-formamide at 20℃; for 0.5h; Stage #2: N-tert-butyloxycarbonyl-L-tert-leucine With 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In methanol; N,N-dimethyl-formamide at 0 - 20℃; for 3h; | |
With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In chloroform at 23℃; for 18h; Inert atmosphere; | |
With O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate; N-ethyl-N,N-diisopropylamine In dichloromethane at 20℃; Inert atmosphere; |
N-tert-butyloxycarbonyl-L-tert-leucine
benzylamine
(S)-2-amino-N-benzyl-3,3-dimethylbutanamide
Conditions | Yield |
---|---|
Stage #1: N-tert-butyloxycarbonyl-L-tert-leucine; benzylamine With O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate; N-ethyl-N,N-diisopropylamine In dichloromethane for 1.5h; Stage #2: With trifluoroacetic acid In dichloromethane at 20℃; for 1h; Further stages.; | 99% |
Stage #1: N-tert-butyloxycarbonyl-L-tert-leucine; benzylamine With O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate; N-ethyl-N,N-diisopropylamine In dichloromethane at 23℃; for 2h; Stage #2: With trifluoroacetic acid In dichloromethane at 23℃; for 1h; Further stages.; | 98% |
Stage #1: N-tert-butyloxycarbonyl-L-tert-leucine With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dichloromethane at 20℃; for 0.0333333h; Sealed tube; Stage #2: benzylamine With N-ethyl-N,N-diisopropylamine In dichloromethane at 20℃; for 2h; Sealed tube; Stage #3: With trifluoroacetic acid In dichloromethane at 20℃; for 1h; Sealed tube; |
N-tert-butyloxycarbonyl-L-tert-leucine
(R)-4-hydroxy-L-proline ethyl ester
(2S,4R)-methyl 1-{(S)-2-[(tert-butoxycarbonyl)amino]-3,3-dimethylbutanoyl}-4-hydroxypyrrolidine-2-carboxylate
Conditions | Yield |
---|---|
With N-ethyl-N,N-diisopropylamine; HATU In dichloromethane at 20℃; for 12h; | 99% |
With N-ethyl-N,N-diisopropylamine; HATU In dichloromethane at 0 - 20℃; for 12h; | 99% |
With 4-methyl-morpholine; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; tert-butyl alcohol In dichloromethane at 20℃; | 60% |
With N-ethyl-N,N-diisopropylamine; HATU In N,N-dimethyl-formamide at 0 - 20℃; for 18h; | |
Stage #1: N-tert-butyloxycarbonyl-L-tert-leucine With HATU In dichloromethane at 20℃; for 0.25h; Stage #2: (R)-4-hydroxy-L-proline ethyl ester With N-ethyl-N,N-diisopropylamine In dichloromethane at 0 - 20℃; for 15h; |
2-(1-ethoxycarbonyl-2-vinyl-cyclopropylcarbamoyl)-4-[2-(2-isopropylamino-thiazol-4-yl)-7-methoxy-quinolin-4-yloxy]-pyrrolidine-1-carboxylic acid tert-butyl ester
N-tert-butyloxycarbonyl-L-tert-leucine
BocNH-(L-t-BuGly)-[(4R)-[2-(2-isopropylaminothiazol-4-yl)-7-methoxyquinoline-4-oxo]-S-proline]-(1R,2S-vinyl acca)-COOEt
Conditions | Yield |
---|---|
Stage #1: 2-(1-ethoxycarbonyl-2-vinyl-cyclopropylcarbamoyl)-4-[2-(2-isopropylamino-thiazol-4-yl)-7-methoxy-quinolin-4-yloxy]-pyrrolidine-1-carboxylic acid tert-butyl ester With hydrogenchloride In 1,4-dioxane for 2.5h; Stage #2: N-tert-butyloxycarbonyl-L-tert-leucine With 4-methyl-morpholine; HATU In DMF (N,N-dimethyl-formamide) | 99% |
Stage #1: 2-(1-ethoxycarbonyl-2-vinyl-cyclopropylcarbamoyl)-4-[2-(2-isopropylamino-thiazol-4-yl)-7-methoxy-quinolin-4-yloxy]-pyrrolidine-1-carboxylic acid tert-butyl ester With hydrogenchloride In 1,4-dioxane for 2.5h; Stage #2: N-tert-butyloxycarbonyl-L-tert-leucine With 4-methyl-morpholine; HATU In N,N-dimethyl-formamide | 99% |
N-tert-butyloxycarbonyl-L-tert-leucine
tert-butyl ((S)-1-((2S,4R)-2-(((1R,2S)-1-((cyclopropylsulfonyl)carbamoyl)-2-vinylcyclopropyl)carbamoyl)-4-((7-methoxy-2-phenylquinolin-4-yl)oxy)pyrrolidin-1-yl)-3,3-dimethyl-1-oxobutan-2-yl)carbamate
Conditions | Yield |
---|---|
With 1-hydroxy-7-aza-benzotriazole; O-(7-azabenzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate; N-ethyl-N,N-diisopropylamine In dichloromethane at 20℃; for 16h; Product distribution / selectivity; | 99% |
N-tert-butyloxycarbonyl-L-tert-leucine
N-(diphenylmethyl)methylamine
tert-butyl (S)-{1-[benzhydryl(methyl)amino]-3,3-dimethyl-1-oxobutan-2-yl}carbamate
Conditions | Yield |
---|---|
With O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate; N-ethyl-N,N-diisopropylamine In dichloromethane at 20℃; for 72h; Inert atmosphere; | 99% |
With O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate; N-ethyl-N,N-diisopropylamine In dichloromethane at 20℃; for 72h; | 91% |
With O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate; N-ethyl-N,N-diisopropylamine In dichloromethane at 20℃; Inert atmosphere; |
N-tert-butyloxycarbonyl-L-tert-leucine
(2S,4R)-4-hydroxy-N-{ [4-(4-methyl-1,3-thiazol-5-yl)phenyl]methyl}pyrrolidine-2-carboxamide hydrochloride
tert‐butyl N‐[(2S)‐1‐[(2S,4R)‐4‐hydroxy‐2‐({[4‐(4‐methyl‐1,3‐thiazol‐5‐yl)phenyl]methyl}carbamoyl)pyrrolidin‐1‐yl]‐3,3‐dimethyl‐1‐oxobutan‐2‐yl]carbamate
Conditions | Yield |
---|---|
With triethylamine; HATU In N,N-dimethyl-formamide at 20℃; for 2h; | 99% |
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 16h; | 84.46% |
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 0 - 20℃; for 12h; Inert atmosphere; | 70% |
N-tert-butyloxycarbonyl-L-tert-leucine
Conditions | Yield |
---|---|
Stage #1: N-tert-butyloxycarbonyl-L-tert-leucine; [(3R,5S)-5-[[4-[4-[[2-[2-(cyclopropylmethylamino)-4-pyridyl]oxazole-4-carbonyl]amino]-3-(difluoromethyl)pyrazol-1-yl]phenyl]methylcarbamoyl]pyrrolidin-3-yl]acetate With N-ethyl-N,N-diisopropylamine In N,N-dimethyl-formamide at 20℃; for 0.5h; Stage #2: With 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; | 99% |
N-tert-butyloxycarbonyl-L-tert-leucine
benzyl-methyl-amine
tert-butyl (S)-1-(N-benzyl-N-methylcarbamoyl)-2,2-dimethylpropylcarbamate
Conditions | Yield |
---|---|
With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In chloroform at 23℃; for 18h; Inert atmosphere; | 98% |
With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In chloroform at 23℃; for 18h; Inert atmosphere; | 98% |
With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; N-ethyl-N,N-diisopropylamine In dichloromethane at 20℃; for 18h; | 97% |
C2HF3O2*C14H21N3O5S
N-tert-butyloxycarbonyl-L-tert-leucine
BOC-NH-(L-tert-BuGly)-[(4R)-hydroxy-S-proline]-(1R,2S-vinyl acca)-CONHSO2-cyclopropane
Conditions | Yield |
---|---|
With N-ethyl-N,N-diisopropylamine; HATU In dichloromethane at 20℃; for 48h; | 98% |
N-tert-butyloxycarbonyl-L-tert-leucine
tert‐butyl N‐[(2S)‐1‐[(2S,4R)‐4‐hydroxy‐2‐({[4‐(4‐methyl‐1,3‐thiazol‐5‐yl)phenyl]methyl}carbamoyl)pyrrolidin‐1‐yl]‐3,3‐dimethyl‐1‐oxobutan‐2‐yl]carbamate
Conditions | Yield |
---|---|
Stage #1: N-tert-butyloxycarbonyl-L-tert-leucine; (2S,4R)-4-hydroxy-N-(4-(4-methylthiazol-5-yl)benzyl)pyrrolidine-2-carboxamide trifluoroacetic acid With N-ethyl-N,N-diisopropylamine In N,N-dimethyl-formamide at 20℃; for 0.0833333h; Stage #2: With 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; | 98% |
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; | 98% |
N-tert-butyloxycarbonyl-L-tert-leucine
Conditions | Yield |
---|---|
With 1-hydroxy-7-aza-benzotriazole; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; N-ethyl-N,N-diisopropylamine In N,N-dimethyl-formamide at 20℃; | 98% |
N-tert-butyloxycarbonyl-L-tert-leucine
4-fluoro-2-methoxyaniline
Conditions | Yield |
---|---|
With triethylamine; N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate In dichloromethane at 0 - 20℃; for 12h; Inert atmosphere; | 98% |
N-tert-butyloxycarbonyl-L-tert-leucine
isobutyl chloroformate
(S)-tert-butyl (1-amino-3,3-dimethyl-1-oxobutan-2-yl)carbamate
Conditions | Yield |
---|---|
Stage #1: N-tert-butyloxycarbonyl-L-tert-leucine; isobutyl chloroformate at 0℃; for 0.5h; Stage #2: With ammonium hydroxide In water at 20℃; for 1.5h; | 98% |
N-tert-butyloxycarbonyl-L-tert-leucine
L-tert-Leucine
Conditions | Yield |
---|---|
With hydrogenchloride In 1,4-dioxane | 97% |
Stage #1: N-tert-butyloxycarbonyl-L-tert-leucine With methanesulfonic acid In dichloromethane at 25℃; for 3h; Stage #2: With triethylamine In dichloromethane at 25℃; for 1h; | 75% |
With hydrogenchloride In water; toluene at 60℃; for 3h; |
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