(2RS,4R)-2-[3-(5-bromo-2-thienyl)-1-phenyl-1H-pyrazol-4-yl]-3-(tert-butyloxycarbonyl)oxazolidine-4-carboxamide

Base Information

Chemical Name:(2RS,4R)-2-[3-(5-bromo-2-thienyl)-1-phenyl-1H-pyrazol-4-yl]-3-(tert-butyloxycarbonyl)oxazolidine-4-carboxamide
CAS No.:612500-45-5
Molecular Formula:C₂₂H₂₃BrN₄O₄S
Molecular Weight:519.419
Hs Code.:

Synonyms:(2RS,4R)-2-[3-(5-bromo-2-thienyl)-1-phenyl-1H-pyrazol-4-yl]-3-(tert-butyloxycarbonyl)oxazolidine-4-carboxamide

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Chemical Property of (2RS,4R)-2-[3-(5-bromo-2-thienyl)-1-phenyl-1H-pyrazol-4-yl]-3-(tert-butyloxycarbonyl)oxazolidine-4-carboxamide

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Technology Process of (2RS,4R)-2-[3-(5-bromo-2-thienyl)-1-phenyl-1H-pyrazol-4-yl]-3-(tert-butyloxycarbonyl)oxazolidine-4-carboxamide

There total 3 articles about (2RS,4R)-2-[3-(5-bromo-2-thienyl)-1-phenyl-1H-pyrazol-4-yl]-3-(tert-butyloxycarbonyl)oxazolidine-4-carboxamide which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 68.0%

: 612500-39-7
(2RS,4R)-2-[3-(5-bromo-2-thienyl)-1-phenyl-1H-pyrazol-4-yl]-3-(tert-butyloxycarbonyl)oxazolidine-4-carboxylic acid

: 612500-45-5
(2RS,4R)-2-[3-(5-bromo-2-thienyl)-1-phenyl-1H-pyrazol-4-yl]-3-(tert-butyloxycarbonyl)oxazolidine-4-carboxamide

Guidance literature:: (2RS,4R)-2-[3-(5-bromo-2-thienyl)-1-phenyl-1H-pyrazol-4-yl]-3-(tert-butyloxycarbonyl)oxazolidine-4-carboxylic acid; With N,N'-dicyclohexyl-carbodiimide hydrochloride; benzotriazol-1-ol; In N,N-dimethyl-formamide; at 0 ℃; for 1h;

With ammonium hydroxide; In N,N-dimethyl-formamide; at 20 ℃;
DOI:10.1002/ardp.200390007

Reference yield:

: 24424-99-5
di-tert-butyl dicarbonate

: 612500-45-5
(2RS,4R)-2-[3-(5-bromo-2-thienyl)-1-phenyl-1H-pyrazol-4-yl]-3-(tert-butyloxycarbonyl)oxazolidine-4-carboxamide

Guidance literature:: Multi-step reaction with 2 steps

1.1: aq. NaOH / ethanol / 24 h / 5 °C

1.2: 78 percent / conc. HCl / ethanol; dioxane / 5 h / 20 °C / pH 9.5

2.1: HOBt*H₂O; DCC*HCl / dimethylformamide / 1 h / 0 °C

2.2: 68 percent / aq. NH₄OH / dimethylformamide / 20 °C

With sodium hydroxide; N,N'-dicyclohexyl-carbodiimide hydrochloride; benzotriazol-1-ol; In ethanol; N,N-dimethyl-formamide;
DOI:10.1002/ardp.200390007

Reference yield:

: 274900-91-3
3-(5-bromo-2-thienyl)-1-phenyl-1H-pyrazole-4-carboxaldehyde

: 612500-45-5
(2RS,4R)-2-[3-(5-bromo-2-thienyl)-1-phenyl-1H-pyrazol-4-yl]-3-(tert-butyloxycarbonyl)oxazolidine-4-carboxamide

Guidance literature:: Multi-step reaction with 2 steps

1.1: aq. NaOH / ethanol / 24 h / 5 °C

1.2: 78 percent / conc. HCl / ethanol; dioxane / 5 h / 20 °C / pH 9.5

2.1: HOBt*H₂O; DCC*HCl / dimethylformamide / 1 h / 0 °C

2.2: 68 percent / aq. NH₄OH / dimethylformamide / 20 °C

With sodium hydroxide; N,N'-dicyclohexyl-carbodiimide hydrochloride; benzotriazol-1-ol; In ethanol; N,N-dimethyl-formamide;
DOI:10.1002/ardp.200390007