Established 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
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inquiryWe Huarong Pharm can provide Customized Synthesis & Process R&D & APIs and intermediates Production & Quality Research & Registration Application, especially our GMP validation service which complies with SFDA, FDA, WHO and EU EMPA. O
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
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inquiryhigh qualityAppearance:white crystalline 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
Ansciep 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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inquirybest price high quality Storage:Room Temperature Application:For pharmacy chemicals Transportation:by sea,air
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inquiry4-AMINO-1-PIPERIDINEETHANOLCASAppearance:white crystalline powder Storage:Store in dry, dark and ventilated place Package:25KG drum Application:intermediate Transportation:by air, by sea, by express
factory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin
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inquiryGood Quality Package:1kg/bag Application:Medical or chemical Transportation:Air/Train/Sea Port:Shenzhen
factory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin
R & D enterprises have their own stock in stockAppearance:To be subject to the object Package:Customized Application:pharmaceutical intermediates Transportation:Air Port:Shanghai;Guangzhou
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inquiryhigh purity Application:Drug intermediates Materials intermediates and active molecules
[1-(2-hydroxyethyl)-piperidin-4-yl]-carbamic acid tert-butyl ester
4-amino-1-(2-hydroxyethyl)piperidine
Conditions | Yield |
---|---|
With trifluoroacetic acid at 20℃; for 1h; | 95% |
With hydrogenchloride In ethanol; water for 2h; Reflux; | 95% |
With hydrogenchloride In ethanol for 2h; Reflux; | 95% |
Stage #1: [1-(2-hydroxyethyl)-piperidin-4-yl]-carbamic acid tert-butyl ester With trifluoroacetic acid Stage #2: With hydrogenchloride In methanol at 20℃; for 0.5h; Stage #3: With sodium hydroxide In water at 20℃; for 0.25h; pH=> 10; Cooling with ice; | 87% |
Br(1-)*C7H11N2O(1+)
4-amino-1-(2-hydroxyethyl)piperidine
Conditions | Yield |
---|---|
Stage #1: Br(1-)*C7H11N2O(1+) With hydrogen; sodium; rhodium contaminated with carbon In methanol at 60℃; under 7240.26 Torr; Stage #2: In methanol Reflux; | 69% |
(piperidin-4-yl)carbamic acid tert-butyl ester
4-amino-1-(2-hydroxyethyl)piperidine
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 94 percent / K2CO3 / acetonitrile / 5 h / Heating 2: 95 percent / TFA / 1 h / 20 °C View Scheme | |
Multi-step reaction with 2 steps 1.1: potassium carbonate / acetonitrile / 5 h / Reflux 2.1: trifluoroacetic acid 2.2: 0.5 h / 20 °C 2.3: 0.25 h / 20 °C / pH > 10 / Cooling with ice View Scheme | |
Multi-step reaction with 2 steps 1: potassium carbonate / acetonitrile / 5 h / Reflux 2: hydrogenchloride / ethanol; water / 2 h / Reflux View Scheme | |
Multi-step reaction with 2 steps 1: potassium carbonate / acetonitrile / 5 h / Reflux 2: hydrogenchloride / ethanol / 2 h / Reflux View Scheme |
4-aminopyridine
4-amino-1-(2-hydroxyethyl)piperidine
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1.1: toluene / 3.5 h / Reflux 2.1: hydrogen; sodium / rhodium contaminated with carbon / methanol / 60 °C / 7240.26 Torr 2.2: Amberlyst 15 resin / Reflux View Scheme |
2,6-dichloro-N-(2-ethylhexyl)nicotinamide
4-amino-1-(2-hydroxyethyl)piperidine
6-chloro-N-(2-ethylhexyl)-2-{[1-(2-hydroxyethyl)piperidin-4-yl]amino}nicotinamide
Conditions | Yield |
---|---|
With potassium carbonate In o-xylene for 24h; Reflux; | 77.9% |
With potassium carbonate In o-xylene for 24h; Reflux; | 77.9% |
Conditions | Yield |
---|---|
With 4-methyl-morpholine; 1-hydroxybenzotriazol-hydrate; triethylamine; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In N,N-dimethyl-formamide at 20℃; for 20h; | 50% |
4-Bromobenzoic acid
4-amino-1-(2-hydroxyethyl)piperidine
Conditions | Yield |
---|---|
With 4-methyl-morpholine; 1-hydroxybenzotriazol-hydrate; triethylamine; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In N,N-dimethyl-formamide at 20℃; for 20h; | 40% |
4-amino-1-(2-hydroxyethyl)piperidine
Conditions | Yield |
---|---|
With N-ethyl-N,N-diisopropylamine In methanol at 65℃; for 72h; Inert atmosphere; | 34% |
7-bromo-2-chloroquinoxaline
4-amino-1-(2-hydroxyethyl)piperidine
C15H19BrN4O
Conditions | Yield |
---|---|
With N-ethyl-N,N-diisopropylamine In isopropyl alcohol at 100℃; for 24h; | 32% |
With N-ethyl-N,N-diisopropylamine In isopropyl alcohol at 100℃; for 24h; | 32% |
4-amino-1-(2-hydroxyethyl)piperidine
4-amino-N-[1-(2-hydroxy-ethyl)-piperidin-4-yl]-3-methoxy-benzamide
Conditions | Yield |
---|---|
With triethylamine In N,N-dimethyl-formamide |
7-bromo-2-chloroquinoxaline
4-amino-1-(2-hydroxyethyl)piperidine
C30H29F2N7O3
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: N-ethyl-N,N-diisopropylamine / isopropyl alcohol / 24 h / 100 °C 2: N-ethyl-N,N-diisopropylamine; copper(l) iodide / [Pd0(1,1’-bis(diphenylphosphino)ferrocene)] / dimethyl sulfoxide / 3 h / 90 °C View Scheme | |
Multi-step reaction with 2 steps 1: N-ethyl-N,N-diisopropylamine / isopropyl alcohol / 24 h / 100 °C 2: N-ethyl-N,N-diisopropylamine / dichloro(1,1'-bis(diphenylphosphanyl)ferrocene)palladium(II)*CH2Cl2; copper(l) iodide / dimethyl sulfoxide / 3 h / 90 °C View Scheme |
2,6-dichloropyrazine
4-amino-1-(2-hydroxyethyl)piperidine
2-(4-((6-chloropyrazin-2-yl)amino)piperidin-1-yl)ethanol
Conditions | Yield |
---|---|
With N-ethyl-N,N-diisopropylamine In N,N-dimethyl-formamide at 100℃; Inert atmosphere; |
4-amino-1-(2-hydroxyethyl)piperidine
2-(4-((6-(1-(4-methoxybenzyl)-3-methyl-1H-pyrazolo[3,4-b]pyridin-5-yl)pyrazin-2-yl)amino)piperidin-1-yl)ethanol
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: N-ethyl-N,N-diisopropylamine / N,N-dimethyl-formamide / 100 °C / Inert atmosphere 2: potassium tert-butylate / 2,2'-bis-(diphenylphosphino)-1,1'-binaphthyl; tris-(dibenzylideneacetone)dipalladium(0) / 1,4-dioxane / 12 h / 80 °C / Inert atmosphere View Scheme |
4-amino-1-(2-hydroxyethyl)piperidine
2-(4-((6-(3-methyl-1H-pyrazolo[3,4-b]pyridin-5-yl)pyrazin-2-yl)amino)piperidin-1-yl)ethanol
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1.1: N-ethyl-N,N-diisopropylamine / N,N-dimethyl-formamide / 100 °C / Inert atmosphere 2.1: potassium tert-butylate / 2,2'-bis-(diphenylphosphino)-1,1'-binaphthyl; tris-(dibenzylideneacetone)dipalladium(0) / 1,4-dioxane / 12 h / 80 °C / Inert atmosphere 3.1: trifluoroacetic acid / chloroform / 50 °C 3.2: pH 8 View Scheme |
3,3-dimethyl-5-oxo-5-(((1R,3aR,5aR,5bR,7aR,9S,11aR,11bR,13aR,13bR)-5a,5b,8,8,11a-pentamethyl-3a-(2-oxoethyl)-1-(prop-1-en-2-yl)icosahydro-1H-cyclopenta[a]chrysen-9-yl)oxy)pentanoic acid
4-amino-1-(2-hydroxyethyl)piperidine
Conditions | Yield |
---|---|
With sodium tris(acetoxy)borohydride; acetic acid In dichloromethane at 20℃; |
3,3-dimethyl-5-oxo-5-(((1R,3aR,5aR,5bR,7aR,9S,11aR,11bR,13aR,13bR)-5a,5b,8,8,11a-pentamethyl-3a-(2-oxoethyl)-1-(prop-1-en-2-yl)icosahydro-1H-cyclopenta[a]chrysen-9-yl)oxy)pentanoic acid
4-amino-1-(2-hydroxyethyl)piperidine
trifluoroacetic acid
Conditions | Yield |
---|---|
Stage #1: 3,3-dimethyl-5-oxo-5-(((1R,3aR,5aR,5bR,7aR,9S,11aR,11bR,13aR,13bR)-5a,5b,8,8,11a-pentamethyl-3a-(2-oxoethyl)-1-(prop-1-en-2-yl)icosahydro-1H-cyclopenta[a]chrysen-9-yl)oxy)pentanoic acid; 4-amino-1-(2-hydroxyethyl)piperidine With sodium tris(acetoxy)borohydride; acetic acid In 1,2-dichloro-ethane for 18h; Stage #2: trifluoroacetic acid |
Conditions | Yield |
---|---|
Stage #1: phenyl ((1R,4R)-4-((4-((5-cyclopentyl-1H-pyrazol-3-yl)amino)pyrimidin-2-yl)amino)cyclohexyl)carbamate With triethylamine In N,N-dimethyl-formamide at 85℃; for 1h; Stage #2: 4-amino-1-(2-hydroxyethyl)piperidine In N,N-dimethyl-formamide at 95℃; for 16h; Stage #3: trifluoroacetic acid | 25 mg |
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