Sichuan Tongsheng is the most strongest manufacturer and exporter of amino acids and their derivatives in China, we guarantee high quality, competive price and reliable service. We fully compliance with ISO9001:2008, production and quality manage
Cas:63038-27-7
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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
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Min.Order:1 Kilogram
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inquiryItems Standard Result Assay (Ursolic acid) 98%min 98.22% -----------------------------------------------------------------------------------------------------------
Cas:63038-27-7
Min.Order:1 Gram
FOB Price: $100.0 / 500.0
Type:Trading Company
inquiry1. Guaranteed purity; 2. Large quantity in stock; 3. Largest manufacturer; 4. Best service after shipment with email; 5. High quality & competitive price; ...... Appearance:White to off-white powder Storage:2-8°C Package:1kg/foil bag;
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Cas:63038-27-7
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inquiry1. Factory price and high quality must be guaranteed, base on 8 years of production and R&D experience2. Free samples will be provided,ensure specifications and quality are right for customer3. Customers will receive the most professional technical s
Cas:63038-27-7
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inquiry
Cas:63038-27-7
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inquiryWhy is SINOWAY: 1) Specialized in pharmaceutical and healthcare industrial for 34 years. 2) ISO 9001:2015 & SGS audited supplier . 3) Accept various payment terms : T.T 30-60 days. 4) We have warehouse in USA with quickly shipment . 5) We c
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Min.Order:25 Kilogram
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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
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inquiryMelting point: 183-186 ° C Boiling point: 206.8 ° C at 760 mmHg Flash point: 78.9 ° C Steam pressure: 0.195mmHg at 25 ° C Solubility: DMSO (Slightly), Methanol (Slightly), Water (Slightly) Refractive index: 16.5 ° (C=1, MeOH) Stor
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FOB Price: $15.0 / 50.0
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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
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inquiryProduct name L-TERT-LEUCINE METHYL ESTER HYDROCHLORIDE Alias (S)-2-AMINO-3,3-DIMETHYLBUTYRIC ACID METHYL ESTER HYDROCHLORIDE; L-(+)-TERT-LEUCINE Leucine methyl ester hydrochloride; L-tert-Leucine me
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Min.Order:1 Kilogram
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Type:Other
inquiry1. 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
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Min.Order:10 Gram
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inquiryAbout Product Details Items Specifications Test Results Appearance White to white crystalline powde
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Type:Lab/Research institutions
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inquiryL-TERT-LEUCINE METHYL ESTER HYDROCHLORIDE CAS:63038-27-7 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
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Min.Order:1 Gram
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inquiryAdvantage : 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 R&
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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
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Cas:63038-27-7
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inquiryL-tert-Leucine methyl ester hydrochloride cas 63038-27-7 Our advantage 1.Top quality: Using high quality material and establishing a strict quality control system,assigning specific persons in charge of each part of production,from raw materi
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Min.Order:1 Kilogram
FOB Price: $10.0 / 50.0
Type:Trading Company
inquiryAppearance:white or light yellow crystalline powder Storage:Store in a cool,dry place and keep away from direct strong light Package:As customer request Application:Used for research and industrial manufacture. Transportation:By
Cas:63038-27-7
Min.Order:100 Gram
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inquiryCompany 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
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Min.Order:1 Gram
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inquiryA 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
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Min.Order:1 Gram
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inquiryConditions | Yield |
---|---|
With thionyl chloride at 0 - 20℃; | 100% |
With thionyl chloride for 16h; Reflux; | 100% |
With hydrogenchloride Ambient temperature; | 98% |
methanol
N-tert-butyloxycarbonyl-L-tert-leucine
L-tert-leucine methyl ester hydrochloride
Conditions | Yield |
---|---|
With thionyl chloride at 0 - 80℃; for 8h; Inert atmosphere; | 76% |
With thionyl chloride at 80℃; for 8h; | 76% |
With thionyl chloride at 20℃; Cooling; |
methanol
L-tert-leucine methyl ester hydrochloride
Conditions | Yield |
---|---|
With thionyl chloride at 40℃; | 52% |
L-tert-Leucine
L-tert-leucine methyl ester hydrochloride
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 1) 0.5N NaOH / 1) dioxane, 16 h, RT, 2) ether 2: 52 percent / SOCl2 / 40 °C View Scheme |
2-<(S)-α-methylbenzylamino>-3,3,dimethylbutyramide
L-tert-leucine methyl ester hydrochloride
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: 80 percent / hydrogen / 10percent Pd/C / acetic acid; methanol / 760 Torr / Ambient temperature 2: 35 percent / MnCl2*4H2O, 1N NaOH, leucine aminopeptidase / H2O / 40 h / 37 °C 3: 1) 0.5N NaOH / 1) dioxane, 16 h, RT, 2) ether 4: 52 percent / SOCl2 / 40 °C View Scheme |
pivalaldehyde
L-tert-leucine methyl ester hydrochloride
Conditions | Yield |
---|---|
Multi-step reaction with 7 steps 1: diethyl ether / -10 °C 2: 75 percent / ethanol 3: 81 percent / H2SO4 4: 80 percent / hydrogen / 10percent Pd/C / acetic acid; methanol / 760 Torr / Ambient temperature 5: 35 percent / MnCl2*4H2O, 1N NaOH, leucine aminopeptidase / H2O / 40 h / 37 °C 6: 1) 0.5N NaOH / 1) dioxane, 16 h, RT, 2) ether 7: 52 percent / SOCl2 / 40 °C View Scheme |
1-<(S)-α-methylbenzylimino>-2,2-dimethylpropane
L-tert-leucine methyl ester hydrochloride
Conditions | Yield |
---|---|
Multi-step reaction with 6 steps 1: 75 percent / ethanol 2: 81 percent / H2SO4 3: 80 percent / hydrogen / 10percent Pd/C / acetic acid; methanol / 760 Torr / Ambient temperature 4: 35 percent / MnCl2*4H2O, 1N NaOH, leucine aminopeptidase / H2O / 40 h / 37 °C 5: 1) 0.5N NaOH / 1) dioxane, 16 h, RT, 2) ether 6: 52 percent / SOCl2 / 40 °C View Scheme |
L-tert-leucine methyl ester hydrochloride
Conditions | Yield |
---|---|
Multi-step reaction with 5 steps 1: 81 percent / H2SO4 2: 80 percent / hydrogen / 10percent Pd/C / acetic acid; methanol / 760 Torr / Ambient temperature 3: 35 percent / MnCl2*4H2O, 1N NaOH, leucine aminopeptidase / H2O / 40 h / 37 °C 4: 1) 0.5N NaOH / 1) dioxane, 16 h, RT, 2) ether 5: 52 percent / SOCl2 / 40 °C View Scheme |
L-tert-leucine methyl ester hydrochloride
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: 35 percent / MnCl2*4H2O, 1N NaOH, leucine aminopeptidase / H2O / 40 h / 37 °C 2: 1) 0.5N NaOH / 1) dioxane, 16 h, RT, 2) ether 3: 52 percent / SOCl2 / 40 °C View Scheme |
methanol
(S)-2-amino-3,3-dimethylbutanoic acid hydrochloride
L-tert-leucine methyl ester hydrochloride
Conditions | Yield |
---|---|
With thionyl chloride at -10 - 20℃; for 16h; |
L-tert-leucine methyl ester hydrochloride
4-Nitrophenyl chloroformate
methyl (2S)-3,3-dimethyl-2-{[(4-nitrophenoxy)carbonyl]amino}butanoate
Conditions | Yield |
---|---|
With 4-methyl-morpholine In dichloromethane at 25℃; for 64h; | 100% |
L-tert-leucine methyl ester hydrochloride
chloroacetyl chloride
methyl (2S)-2-[(chloroacetyl)amino]-3,3-dimethylbutanoate
Conditions | Yield |
---|---|
With potassium carbonate In water; ethyl acetate at 25℃; for 4h; | 100% |
(R)-3-benzyloxycarbonyl-2-pentylpropanoic acid
L-tert-leucine methyl ester hydrochloride
N-[(R)-3-benzyloxycarbonyl-2-pentylpropanoyl]-L-tert-leucine methyl ester
Conditions | Yield |
---|---|
With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; N-ethyl-N,N-diisopropylamine In dichloromethane at 20℃; for 2h; | 100% |
L-tert-leucine methyl ester hydrochloride
acetone
methyl (S)-2-(isopropylamino)-3,3-dimethylbutanoate hydrochloride
Conditions | Yield |
---|---|
With 4-methyl-morpholine; palladium 10% on activated carbon; hydrogen In methanol at 20℃; under 3000.3 Torr; for 12h; Inert atmosphere; chemoselective reaction; | 100% |
Conditions | Yield |
---|---|
With triethylamine In dichloromethane at -78℃; for 3h; Inert atmosphere; | 100% |
(S)-N-(tert-butoxycarbonyl)serine
L-tert-leucine methyl ester hydrochloride
Conditions | Yield |
---|---|
Stage #1: L-tert-leucine methyl ester hydrochloride With sodium carbonate In dichloromethane; water at 20℃; for 0.0833333h; Stage #2: (S)-N-(tert-butoxycarbonyl)serine With C12H6B2Br4O3 In 1,2-dichloro-ethane at 90℃; for 24h; chemoselective reaction; | 97% |
L-tert-leucine methyl ester hydrochloride
Conditions | Yield |
---|---|
With sodium acetate In water under Ar or N2, Pd-complex was added to mixt. of 2 equiv. of amino-acidand 2 equiv. of NaOOCCH3, 1 h; ppt. was filtered off, dried in high vac.; | 90% |
Conditions | Yield |
---|---|
Stage #1: L-tert-leucine methyl ester hydrochloride; Propiolic acid With N-ethyl-N,N-diisopropylamine; diisopropyl-carbodiimide In dichloromethane at 0 - 23℃; for 16.16h; Inert atmosphere; Stage #2: With water; ammonium chloride In dichloromethane | 90% |
N-(tert-butoxycarbonyl)-N-methyl-L-alanine
L-tert-leucine methyl ester hydrochloride
(S)-methyl 2-((S)-2-((tert-butoxycarbonyl)(methyl)amino)propanamido)-3,3-dimethylbutanoate
Conditions | Yield |
---|---|
With benzotriazol-1-ol; N-(3-dimethylaminopropyl)-N-ethylcarbodiimide In tetrahydrofuran at 20℃; for 18h; | 90% |
L-tert-leucine methyl ester hydrochloride
5-acetyl-2,2-dimethyl-1,3-dioxane-4,6-dione
Conditions | Yield |
---|---|
With triethylamine In 1,4-dioxane at 110℃; for 4h; | 88% |
L-tert-leucine methyl ester hydrochloride
Conditions | Yield |
---|---|
Stage #1: 1-(5-fluoro-4-hydroxypentyl)-1H-indole-3-carboxylic acid With O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate; triethylamine In acetonitrile at 20℃; for 0.5h; Stage #2: L-tert-leucine methyl ester hydrochloride In acetonitrile at 20℃; for 48h; | 87% |
9H-fluoren-9-ylmethyl (1-methyl-1H-benzimidazol-2-yl)methyl(2-oxoethyl)carbamate
L-tert-leucine methyl ester hydrochloride
tert-butyl (2S)-2-[(2-{[(9H-fluoren-9-ylmethoxy)carbonyl][(1-methyl-1H-benzimidazol-2-yl)methyl]amino}ethyl)amino]-3,3-dimethylbutanoate
Conditions | Yield |
---|---|
Stage #1: 9H-fluoren-9-ylmethyl (1-methyl-1H-benzimidazol-2-yl)methyl(2-oxoethyl)carbamate; L-tert-leucine methyl ester hydrochloride With sodium cyanoborohydride; acetic acid In methanol at 25℃; for 3.5h; Stage #2: With water In methanol; ethyl acetate | 83% |
9H-fluoren-9-ylmethyl (1-methyl-1H-benzimidazol-2-yl)methyl(2-oxoethyl)carbamate
L-tert-leucine methyl ester hydrochloride
Methyl (2S)-2-[(2-{[(9H-fluoren-9-ylmethoxy)carbonyl][(1-methyl-1H-benzimidazol-2-yl)methyl]amino}ethyl)amino]-3,3-dimethylbutanoate
Conditions | Yield |
---|---|
With sodium cyanoborohydride In methanol; acetic acid at 25℃; for 3.5h; | 83% |
With sodium cyanoborohydride; acetic acid In methanol at 25℃; for 3.5h; | 83% |
With sodium cyanoborohydride; acetic acid In methanol at 25℃; for 3.5h; | 83% |
1-(tert-butoxycarbonyl)-L-proline
L-tert-leucine methyl ester hydrochloride
(2S)-tert-butyl 2S-((2S)-1-(methoxycarbonyl)-2,2-dimethylpropylcarbamoyl)pyrrolidine-1-carboxylate
Conditions | Yield |
---|---|
Stage #1: 1-(tert-butoxycarbonyl)-L-proline; L-tert-leucine methyl ester hydrochloride With triethylamine In tetrahydrofuran at 0℃; for 0.5h; Stage #2: With dmap; dicyclohexyl-carbodiimide In tetrahydrofuran at 0 - 20℃; for 17h; | 82.2% |
Stage #1: 1-(tert-butoxycarbonyl)-L-proline In tetrahydrofuran; butan-1-ol at 0℃; for 0.166667h; Stage #2: L-tert-leucine methyl ester hydrochloride With triethylamine; dicyclohexyl-carbodiimide In tetrahydrofuran; butan-1-ol at 20℃; for 25h; | 58% |
L-tert-leucine methyl ester hydrochloride
piperic acid
Conditions | Yield |
---|---|
With 4-methyl-morpholine; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dichloromethane at 0 - 20℃; for 16h; | 82% |
4'-(methyloxy)-3-nitro-4-biphenylcarboxylic acid
L-tert-leucine methyl ester hydrochloride
C21H24N2O6
Conditions | Yield |
---|---|
With N-ethyl-N,N-diisopropylamine; HATU In N,N-dimethyl-formamide at 20℃; | 81% |
L-tert-leucine methyl ester hydrochloride
acryloyl chloride
(S)-N-1-methoxycarbonyl-1-tert-butylmethyl-acrylamide
Conditions | Yield |
---|---|
With triethylamine In dichloromethane at 20℃; for 4h; | 80% |
L-tert-leucine methyl ester hydrochloride
Conditions | Yield |
---|---|
With benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate; N-ethyl-N,N-diisopropylamine In dimethyl sulfoxide at 0 - 20℃; for 2h; | 76% |
(2E,4E)-4-(benzo[d][1,3]dioxol-5-ylmethylene)hex-2-enoic acid
L-tert-leucine methyl ester hydrochloride
Conditions | Yield |
---|---|
With 4-methyl-morpholine; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dichloromethane at 0 - 20℃; for 16h; | 75% |
phosgene
L-tert-leucine methyl ester hydrochloride
methyl 3-methyl-N-(oxomethylene)-L-valinate
Conditions | Yield |
---|---|
With pyridine In dichloromethane; toluene at 0℃; for 1.5h; | 74% |
With pyridine In dichloromethane; toluene at 0℃; for 2h; |
5-Hexen-1-ol
hex-5-en-1-al
L-tert-leucine methyl ester hydrochloride
methyl N-hex-5-en-1-yl-3-methyl-L-valinate
Conditions | Yield |
---|---|
With triethanolamine; 4,5-dichloro-1-phenylpyridazin-6-one; sodium tris(acetoxy)borohydride | 72% |
L-tert-leucine methyl ester hydrochloride
Conditions | Yield |
---|---|
With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; triethylamine In N,N-dimethyl-formamide at 20℃; Inert atmosphere; | 72% |
8-(tert-butoxycarbonyl)-3-phenyl-6,7,8,9-tetrahydro-5H-imidazo[1,5-a][1,4]diazepine-1-carboxylic acid
L-tert-leucine methyl ester hydrochloride
(S)-tert-butyl 1-(1-methoxy-3,3-dimethyl-1-oxobutan-2-ylcarbamoyl)-3-phenyl-6,7-dihydro-5H-imidazo[1,5-a][1,4]diazepine-8(9H)-carboxylate
Conditions | Yield |
---|---|
Stage #1: 8-(tert-butoxycarbonyl)-3-phenyl-6,7,8,9-tetrahydro-5H-imidazo[1,5-a][1,4]diazepine-1-carboxylic acid; L-tert-leucine methyl ester hydrochloride With O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate; N-ethyl-N,N-diisopropylamine In N,N-dimethyl-formamide at 0 - 20℃; for 1.33333h; Stage #2: With water; sodium hydrogencarbonate In N,N-dimethyl-formamide | 71% |
4-nitronaphthalen-1-yl trifluoromethanesulfonate
L-tert-leucine methyl ester hydrochloride
Conditions | Yield |
---|---|
With tris-(dibenzylideneacetone)dipalladium(0); caesium carbonate; 2,2'-bis-(diphenylphosphino)-1,1'-binaphthyl; N-ethyl-N,N-diisopropylamine In 1,4-dioxane at 100℃; for 20h; Inert atmosphere; | 71% |
Conditions | Yield |
---|---|
With benzotriazol-1-ol; N-(3-dimethylaminopropyl)-N-ethylcarbodiimide; N-ethyl-N,N-diisopropylamine In dichloromethane at 0 - 20℃; for 24.1667h; Inert atmosphere; Sealed tube; | 70% |
L-tert-leucine methyl ester hydrochloride
Benzoylformic acid
Conditions | Yield |
---|---|
With dmap; triethylamine; dicyclohexyl-carbodiimide In dichloromethane | 69% |
L-tert-leucine methyl ester hydrochloride
Conditions | Yield |
---|---|
With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; triethylamine In N,N-dimethyl-formamide at 20℃; Inert atmosphere; | 68% |
2-(benzyloxy)-5-chlorobenzoic acid
L-tert-leucine methyl ester hydrochloride
methyl (2S)-2-[[2-(benzyloxy)(5-chlorobenzoyl)amino]-3,3-dimethyl]butanoate
Conditions | Yield |
---|---|
With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; triethylamine In dichloromethane at 5 - 20℃; for 16.5h; | 67% |
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