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
Cas:2748-02-9
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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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inquiryThe 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
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:2748-02-9
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inquiryAbout Product Technical Details L-Leucine tert-butyl ester h
Cas:2748-02-9
Min.Order:1 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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inquiryOur 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
Cas:2748-02-9
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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
Cas:2748-02-9
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inquiryProduct 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
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
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inquiryL-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
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Min.Order:1 Gram
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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
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Min.Order:1 Kilogram
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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
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
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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 present
Stock products, own laboratory Package:Grams, Kilograms Application:For R&D Transportation:According to customer request Port:Shanghai
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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
Cas:2748-02-9
Min.Order:1 Gram
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Type:Lab/Research institutions
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
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inquiryour 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
Cas:2748-02-9
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inquiryZibo 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:2748-02-9
Min.Order:10 Gram
FOB Price: $100.0
Type:Lab/Research institutions
inquiryProduct 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,
Cas:2748-02-9
Min.Order:1 Kilogram
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inquiryGMP 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,
Appearance:95%+ Package:R&D,Pilot run Transportation:per client require Port:Express ,Air, Sea
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
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
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inquiryHigh 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
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inquiryLower 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
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inquiryhigh 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
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
N-Cbz-L-Isoleucine
L-leucine tert-butyl ester hydrochloride
N-benzyloxycarbonyl-L-isoleucyl-L-leucine t-butyl ester
Conditions | Yield |
---|---|
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
L-leucine tert-butyl ester hydrochloride
(S)-2-[4-(1-ethyl-propylamino)-3-nitro-benzoylamino]-4-methyl-pentanoic acid tert-butyl ester
Conditions | Yield |
---|---|
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
L-leucine tert-butyl ester hydrochloride
(S)-2-(4-fluoro-3-nitro-benzoylamino)-4-methyl-pentanoic acid tert-butyl ester
Conditions | Yield |
---|---|
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
Conditions | Yield |
---|---|
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
(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
Conditions | Yield |
---|---|
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
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
Conditions | Yield |
---|---|
With sodium cyanoborohydride In tetrahydrofuran; acetonitrile for 73h; | 99% |
Fmoc-Pro-OH
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
Conditions | Yield |
---|---|
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
cyanomethyl bromide
(S)-tert-butyl 2-(cyanomethylamino)-4-methylpentanoate
Conditions | Yield |
---|---|
With N-ethyl-N,N-diisopropylamine In acetonitrile at 20℃; | 99% |
L-leucine tert-butyl ester hydrochloride
1,1'-carbonyldiimidazole
Fmoc-azaGly-Leu-OBut
Conditions | Yield |
---|---|
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
L-leucine tert-butyl ester hydrochloride
Conditions | Yield |
---|---|
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
L-leucine tert-butyl ester hydrochloride
Conditions | Yield |
---|---|
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
(S)-3-tert-butoxycarbonylaminobutyric acid
Conditions | Yield |
---|---|
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
(S)-3-{[(tert-butoxy)carbonyl]amino}-5-(methylsulfanyl)pentanoic acid
Conditions | Yield |
---|---|
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
L-N-t-butoxycarbonylpyroglutamic acid
Conditions | Yield |
---|---|
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
Conditions | Yield |
---|---|
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
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
Conditions | Yield |
---|---|
With sodium cyanoborohydride In tetrahydrofuran; acetonitrile for 73h; | 95% |
2,5-dioxopyrrolidin-1-yl (2-(vinylsulfonyl)ethyl)carbonate
L-leucine tert-butyl ester hydrochloride
2-(2-ethenesulfonyl-ethoxycarbonylamino)-4-methyl-pentanoic acid tert-butyl ester
Conditions | Yield |
---|---|
With sodium hydrogencarbonate In water; acetonitrile at 20℃; for 0.25h; | 94% |
L-leucine tert-butyl ester hydrochloride
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
Conditions | Yield |
---|---|
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
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
Conditions | Yield |
---|---|
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
Conditions | Yield |
---|---|
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
2-Bromoacetyl bromide
C12H22BrNO3
Conditions | Yield |
---|---|
With potassium carbonate In dichloromethane; water at -0.16 - 20℃; | 91.8% |
Conditions | Yield |
---|---|
With N-ethyl-N,N-diisopropylamine In dichloromethane at 20℃; for 72h; Inert atmosphere; | 91% |
di(succinimido) carbonate
benzophenone hydrazone
L-leucine tert-butyl ester hydrochloride
Conditions | Yield |
---|---|
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% |
Conditions | Yield |
---|---|
With diisopropylamine In dichloromethane at 0 - 20℃; for 0.5h; | 90% |
Conditions | Yield |
---|---|
With dmap; triethylamine In 1,2-dimethoxyethane for 2h; Inert atmosphere; Reflux; | 90% |
L-leucine tert-butyl ester hydrochloride
(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
Conditions | Yield |
---|---|
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
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
Conditions | Yield |
---|---|
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% |
L-leucine tert-butyl ester hydrochloride
Conditions | Yield |
---|---|
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
L-leucine tert-butyl ester hydrochloride
Conditions | Yield |
---|---|
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
Conditions | Yield |
---|---|
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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