1. 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
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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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inquiryTebipenem API 161715-21-5 professional supplier Specifications: Tebipenem ; CAS# 161715-21-5 USP/EP Top quality, best price Appearance:White powder Storage:RT. Package:on request Applic
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
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
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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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inquiryEstablished in May 2015, TaiChem Ltd. is initially invested by a British research and development company and started by PhDs back from aboard. The company is registered in China Medical City (CMC), Taizhou, Jiangsu Province, and the production site
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
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factory?direct?saleAppearance:White Powder Storage:Store In Dry, Cool And Ventilated Place Package:25kg/drum, also according to the clients requirement Application:It is widely used as a thickener, emulsifier and stabilizer Transportation:By Sea Or B
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inquiryShandong Mopai Biotechnology 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 chemicals. W
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inquiry1.Applied in food field.it can improve the immune system and prolong life. 2.Appliedin cosmetic field.it can improve the skin care. 3.Applied in pharmaceutical field.it can treat various dieases. 4.Our product quality assurance will make our customer
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inquiryWe are a Union of chemistry in China, consists of chemists,engineers, laboratories,factories in China. We organize surplus capacity of R&D and production as well as custom synthesis for chemical products and chemical business project. We are supp
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inquiryOur company was built in 2009 with an ISO certificate.In the past 6 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
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inquiryISO Factory/Good qualityAppearance:off white Storage:dry and cool place Package:10G/BAG; 1KG/BAG ;25KG/DRUM Application:Active pharaceutical ingredients Transportation:BY SEA,AIR,EXPRESS Port:SHANGHAI;BEIJING
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
Why is SINOWAY:1) Specialized in pharmaceutical and healthcare industrial since 19872) 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 . Application:API
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inquiryAnsciep Chemical is a professional enterprise manufacturing and distributing fine chemicals and speciality chemicals. We have been dedicated to heterocycle compounds and phenyl rings for tens of years. This is our mature product for export. Our quali
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inquiryWe are a trading company aiming at providing high-quality services to customers. Established for many years, with good reputation in the industry Storage:Sealed and preserved Application:Fine chemical intermediates, used as the main raw material for
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inquiryTIANFUCHEM--161715-21-5--Tebipenem Application:TIANFUCHEM--161715-21-5--Tebipenem
Supply top quality products with a reasonable price Application:api
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inquiry*stable and better quality products*efficient and meticulous servicesAppearance:Powder Storage:Store in dry, cool and ventilated place Package:1kg/tin 5kg/tin 25kg/carton Application:Pharmaceutical raw materials, making injection powder oral agent Tr
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inquirygood quality, competitive price, thoughtful after sale serviceAppearance:white powder Storage:Keep it in dry,shady and cool place Package:5mg Application:Pharma;Industry;Agricultural;chemical reaserch Transportation:by express or by sea Port:Any port
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inquiry(+)-(4R,5S,6S)-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-3-{[1-(2-thiazolin-2-yl)-3-azetidinyl]mercapto}-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid p-nitrobenzyl ester
(4R,5S,6S)-3-{[1-(4,5-dihydro-1,3-thiazol-2-yl)azetidin-3-yl]sulfanyl}-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid
Conditions | Yield |
---|---|
With hydrogen In water; butan-1-ol at 20℃; under 15001.5 Torr; for 4h; Solvent; Pressure; Reagent/catalyst; | 94.5% |
With 0.5% Pd/C; hydrogen; sodium hydrogencarbonate In water; butan-1-ol at 25 - 30℃; under 7500.75 Torr; for 3h; Reagent/catalyst; | 89.3% |
With sodium hydrogencarbonate; palladium on activated charcoal In water; butan-1-ol at 20℃; under 3000.24 Torr; for 1.5h; | 82% |
(4R,5S,6S)-3-{[1-(4,5-dihydro-1,3-thiazol-2-yl)azetidin-3-yl]sulfanyl}-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid
Conditions | Yield |
---|---|
With palladium 10% on activated carbon; hydrogen; sodium hydrogencarbonate In water at 13℃; under 11251.1 Torr; for 2.5h; Large scale; | 78.9% |
(4R,5S,6S)-3-{[1-(4,5-dihydro-1,3-thiazol-2-yl)azetidin-3-yl]sulfanyl}-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid
Conditions | Yield |
---|---|
With palladium 10% on activated carbon; hydrogen; sodium hydrogencarbonate In water; butan-1-ol at 20℃; under 3000.3 - 3750.38 Torr; for 7h; Solvent; Pressure; Temperature; | 77% |
With 2,6-dimethylpyridine; palladium 10% on activated carbon; hydrogen In water at 20℃; under 13501.4 Torr; for 4.5h; Reagent/catalyst; Pressure; Temperature; Time; Large scale; | 75.7% |
3-methanesulfonyloxy-1-(1,3-thiazolin-2-yl)azetidine
(4R,5S,6S)-3-{[1-(4,5-dihydro-1,3-thiazol-2-yl)azetidin-3-yl]sulfanyl}-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1.1: 88 percent / potassium thioacetate / dimethylformamide / 5.5 h / 100 °C 2.1: KOH / propan-2-ol; methanol / 0.17 h / 5 °C 2.2: 87 percent / HCl / propan-2-ol; methanol / 15 h / 5 °C 3.1: 94 percent / diisopropyl ethylamine; MeCN / 2 h / -20 °C 4.1: 82 percent / sodium hydrogen carbonate / Pd-C / butan-1-ol; H2O / 1.5 h / 20 °C / 3000.24 Torr View Scheme |
1-(1,3-thiazolin-2-yl-)azetidin-3-ol
(4R,5S,6S)-3-{[1-(4,5-dihydro-1,3-thiazol-2-yl)azetidin-3-yl]sulfanyl}-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid
Conditions | Yield |
---|---|
Multi-step reaction with 5 steps 1.1: 93 percent / DMAP; Et3N / tetrahydrofuran / 0.5 h / 5 °C 2.1: 88 percent / potassium thioacetate / dimethylformamide / 5.5 h / 100 °C 3.1: KOH / propan-2-ol; methanol / 0.17 h / 5 °C 3.2: 87 percent / HCl / propan-2-ol; methanol / 15 h / 5 °C 4.1: 94 percent / diisopropyl ethylamine; MeCN / 2 h / -20 °C 5.1: 82 percent / sodium hydrogen carbonate / Pd-C / butan-1-ol; H2O / 1.5 h / 20 °C / 3000.24 Torr View Scheme |
3-acetylthio-1-(1,3-thiazolin-2-yl)azetidine
(4R,5S,6S)-3-{[1-(4,5-dihydro-1,3-thiazol-2-yl)azetidin-3-yl]sulfanyl}-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1.1: KOH / propan-2-ol; methanol / 0.17 h / 5 °C 1.2: 87 percent / HCl / propan-2-ol; methanol / 15 h / 5 °C 2.1: 94 percent / diisopropyl ethylamine; MeCN / 2 h / -20 °C 3.1: 82 percent / sodium hydrogen carbonate / Pd-C / butan-1-ol; H2O / 1.5 h / 20 °C / 3000.24 Torr View Scheme |
(4R,5S,6S)-3-{[1-(4,5-dihydro-1,3-thiazol-2-yl)azetidin-3-yl]sulfanyl}-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 94 percent / diisopropyl ethylamine; MeCN / 2 h / -20 °C 2: 82 percent / sodium hydrogen carbonate / Pd-C / butan-1-ol; H2O / 1.5 h / 20 °C / 3000.24 Torr View Scheme | |
Multi-step reaction with 2 steps 1.1: acetonitrile / 0.17 h / 20 °C 1.2: 10 h / -20 °C 2.1: hydrogen; sodium hydrogencarbonate; palladium 10% on activated carbon / butan-1-ol; water / 7 h / 20 °C / 3000.3 - 3750.38 Torr View Scheme | |
Multi-step reaction with 2 steps 1: N-ethyl-N,N-diisopropylamine / 3.5 h / -20 °C 2: 0.5% Pd/C; sodium hydrogencarbonate; hydrogen / butan-1-ol; water / 3 h / 25 - 30 °C / 7500.75 Torr View Scheme | |
Multi-step reaction with 2 steps 1: N-ethyl-N,N-diisopropylamine / acetonitrile 2: hydrogen; water; palladium on activated charcoal / butan-1-ol View Scheme |
(4R,5S,6S)-3-{[1-(4,5-dihydro-1,3-thiazol-2-yl)azetidin-3-yl]sulfanyl}-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1.1: acetonitrile / 0.17 h / 20 °C 1.2: 10 h / -20 °C 2.1: hydrogen; sodium hydrogencarbonate; palladium 10% on activated carbon / butan-1-ol; water / 7 h / 20 °C / 3000.3 - 3750.38 Torr View Scheme |
(4-nitrophenyl)methyl (4R,5R,6S)-3-[(diphenoxyphosphinyl)oxy]-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylate
(4R,5S,6S)-3-{[1-(4,5-dihydro-1,3-thiazol-2-yl)azetidin-3-yl]sulfanyl}-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: N-ethyl-N,N-diisopropylamine / 3.5 h / -20 °C 2: 0.5% Pd/C; sodium hydrogencarbonate; hydrogen / butan-1-ol; water / 3 h / 25 - 30 °C / 7500.75 Torr View Scheme | |
Multi-step reaction with 2 steps 1: N-ethyl-N,N-diisopropylamine / acetonitrile 2: hydrogen; water; palladium on activated charcoal / butan-1-ol View Scheme |
(4R,5S,6S)-3-{[1-(4,5-dihydro-1,3-thiazol-2-yl)azetidin-3-yl]sulfanyl}-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid
Conditions | Yield |
---|---|
Stage #1: C11H15NO5; 3-mercapto-1-(1,3-thiazolin-2-yl)azetidine hydrochloride In 1,2-dichloro-ethane at -10℃; for 3h; 2-supported perfluorosulfonic acid resin pyridinium salt; Stage #2: 3-mercapto-1-(1,3-thiazolin-2-yl)azetidine hydrochloride With N-ethyl-N,N-diisopropylamine In acetonitrile at 0 - 5℃; for 6h; Reagent/catalyst; | 58.5 %Chromat. |
(4R,5S,6S)-3-{[1-(4,5-dihydro-1,3-thiazol-2-yl)azetidin-3-yl]sulfanyl}-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: N-ethyl-N,N-diisopropylamine / acetonitrile / 4 h / 0 °C 2: palladium 10% on activated carbon; hydrogen / ethyl acetate / 1 h / 30 °C View Scheme |
(4R,5S,6S)-3-{[1-(4,5-dihydro-1,3-thiazol-2-yl)azetidin-3-yl]sulfanyl}-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid
iodomethyl pivaloate
Conditions | Yield |
---|---|
With caesium carbonate In N,N-dimethyl-formamide for 0.5h; Large scale; | 91.9% |
With potassium carbonate In acetonitrile at 20℃; | |
Stage #1: (4R,5S,6S)-3-{[1-(4,5-dihydro-1,3-thiazol-2-yl)azetidin-3-yl]sulfanyl}-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid With caesium carbonate In N,N-dimethyl-formamide for 0.5h; Inert atmosphere; Stage #2: iodomethyl pivaloate In N,N-dimethyl-formamide for 1h; |
(4R,5S,6S)-3-{[1-(4,5-dihydro-1,3-thiazol-2-yl)azetidin-3-yl]sulfanyl}-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid
Chloromethyl pivalate
Conditions | Yield |
---|---|
Stage #1: (4R,5S,6S)-3-{[1-(4,5-dihydro-1,3-thiazol-2-yl)azetidin-3-yl]sulfanyl}-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid With tetrabutylammomium bromide; potassium carbonate In N,N-dimethyl-formamide at 25℃; for 1h; Stage #2: Chloromethyl pivalate In water at 25℃; for 0.166667h; | 89.7% |
With N-benzyl-N,N,N-triethylammonium chloride; N-ethyl-N,N-diisopropylamine In N,N-dimethyl-formamide at 45℃; for 4h; | 78% |
Stage #1: Chloromethyl pivalate With potassium iodide In N,N-dimethyl-formamide at 60℃; for 3h; Stage #2: (4R,5S,6S)-3-{[1-(4,5-dihydro-1,3-thiazol-2-yl)azetidin-3-yl]sulfanyl}-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid With triethylbenzylammonium iodide; N-ethyl-N,N-diisopropylamine In N,N-dimethyl-formamide at 0℃; for 8h; Reagent/catalyst; | 61% |
Stage #1: (4R,5S,6S)-3-{[1-(4,5-dihydro-1,3-thiazol-2-yl)azetidin-3-yl]sulfanyl}-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid With N-benzyl-N,N,N-triethylammonium chloride; N-ethyl-N,N-diisopropylamine In N,N-dimethyl-formamide at 25℃; for 1h; Large scale; Stage #2: Chloromethyl pivalate In N,N-dimethyl-formamide at 45℃; for 5h; Large scale; | 1.05 kg |
(4R,5S,6S)-3-{[1-(4,5-dihydro-1,3-thiazol-2-yl)azetidin-3-yl]sulfanyl}-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid
Chloromethyl pivalate
Conditions | Yield |
---|---|
Stage #1: (4R,5S,6S)-3-{[1-(4,5-dihydro-1,3-thiazol-2-yl)azetidin-3-yl]sulfanyl}-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid; Chloromethyl pivalate With N-benzyl-N,N,N-triethylammonium chloride; N-ethyl-N,N-diisopropylamine In N,N-dimethyl-formamide at 35℃; for 1h; Stage #2: With hydrogenchloride In water at 7 - 8℃; Time; | 89.1% |
(4R,5S,6S)-3-{[1-(4,5-dihydro-1,3-thiazol-2-yl)azetidin-3-yl]sulfanyl}-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid
Conditions | Yield |
---|---|
With N-benzyl-N,N,N-triethylammonium chloride; N-ethyl-N,N-diisopropylamine In N,N-dimethyl-formamide at 45℃; for 4h; | 88% |
(4R,5S,6S)-3-{[1-(4,5-dihydro-1,3-thiazol-2-yl)azetidin-3-yl]sulfanyl}-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid
3-chloro-1(3H)-isobenzofuranone
Conditions | Yield |
---|---|
With N-benzyl-N,N,N-triethylammonium chloride; N-ethyl-N,N-diisopropylamine In N,N-dimethyl-formamide at 45℃; for 4h; | 84% |
(4R,5S,6S)-3-{[1-(4,5-dihydro-1,3-thiazol-2-yl)azetidin-3-yl]sulfanyl}-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid
4-methylbenzoic acid chloromethyl ester
Conditions | Yield |
---|---|
With N-benzyl-N,N,N-triethylammonium chloride; N-ethyl-N,N-diisopropylamine In N,N-dimethyl-formamide at 45℃; for 4h; | 84% |
(4R,5S,6S)-3-{[1-(4,5-dihydro-1,3-thiazol-2-yl)azetidin-3-yl]sulfanyl}-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid
1-chloroethyl cyclohexyl carbonate
Conditions | Yield |
---|---|
With N-benzyl-N,N,N-triethylammonium chloride; N-ethyl-N,N-diisopropylamine In N,N-dimethyl-formamide at 45℃; for 4h; | 82% |
(4R,5S,6S)-3-{[1-(4,5-dihydro-1,3-thiazol-2-yl)azetidin-3-yl]sulfanyl}-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid
chloromethyl p-chlorobenzoate
Conditions | Yield |
---|---|
With N-benzyl-N,N,N-triethylammonium chloride; N-ethyl-N,N-diisopropylamine In N,N-dimethyl-formamide at 45℃; for 4h; | 81% |
(4R,5S,6S)-3-{[1-(4,5-dihydro-1,3-thiazol-2-yl)azetidin-3-yl]sulfanyl}-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid
Conditions | Yield |
---|---|
With N-benzyl-N,N,N-triethylammonium chloride; N-ethyl-N,N-diisopropylamine In N,N-dimethyl-formamide at 45℃; for 4h; | 80% |
(4R,5S,6S)-3-{[1-(4,5-dihydro-1,3-thiazol-2-yl)azetidin-3-yl]sulfanyl}-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid
Conditions | Yield |
---|---|
With N-benzyl-N,N,N-triethylammonium chloride; N-ethyl-N,N-diisopropylamine In N,N-dimethyl-formamide at 45℃; for 4h; | 76% |
(4R,5S,6S)-3-{[1-(4,5-dihydro-1,3-thiazol-2-yl)azetidin-3-yl]sulfanyl}-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid
chloromethyl cyclohexanoic acid ester
Conditions | Yield |
---|---|
With N-benzyl-N,N,N-triethylammonium chloride; N-ethyl-N,N-diisopropylamine In N,N-dimethyl-formamide at 45℃; for 4h; | 71% |
(4R,5S,6S)-3-{[1-(4,5-dihydro-1,3-thiazol-2-yl)azetidin-3-yl]sulfanyl}-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid
Conditions | Yield |
---|---|
With dmap; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dichloromethane at 20℃; for 10h; | 66% |
(4R,5S,6S)-3-{[1-(4,5-dihydro-1,3-thiazol-2-yl)azetidin-3-yl]sulfanyl}-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid
4-chloromethyl-5-methyl-1,3-dioxol-2-one
Conditions | Yield |
---|---|
With N-benzyl-N,N,N-triethylammonium chloride; N-ethyl-N,N-diisopropylamine In N,N-dimethyl-formamide at 45℃; for 4h; | 54% |
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