(2S,4R)-N-t-butoxycarbonyl-4-t-butyldimethylsilyloxy-2-[N-(p-toluenesulfonyl)azetidin-3-yl]pyrrolidine

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Chemical Name:(2S,4R)-N-t-butoxycarbonyl-4-t-butyldimethylsilyloxy-2-[N-(p-toluenesulfonyl)azetidin-3-yl]pyrrolidine
CAS No.:149396-15-6
Molecular Formula:C₂₅H₄₂N₂O₅SSi
Molecular Weight:510.77
Hs Code.:

Synonyms:(2S,4R)-N-t-butoxycarbonyl-4-t-butyldimethylsilyloxy-2-[N-(p-toluenesulfonyl)azetidin-3-yl]pyrrolidine

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Chemical Property of (2S,4R)-N-t-butoxycarbonyl-4-t-butyldimethylsilyloxy-2-[N-(p-toluenesulfonyl)azetidin-3-yl]pyrrolidine

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Technology Process of (2S,4R)-N-t-butoxycarbonyl-4-t-butyldimethylsilyloxy-2-[N-(p-toluenesulfonyl)azetidin-3-yl]pyrrolidine

There total 5 articles about (2S,4R)-N-t-butoxycarbonyl-4-t-butyldimethylsilyloxy-2-[N-(p-toluenesulfonyl)azetidin-3-yl]pyrrolidine 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: 77.0%

: 4-(tert-butyl-dimethyl-silanyloxy)-2-[1-hydroxymethyl-2-(toluene-4-sulfonylamino)-ethyl]-pyrrolidine-1-carboxylic acid tert-butyl ester

: 149396-15-6
(2S,4R)-N-t-butoxycarbonyl-4-t-butyldimethylsilyloxy-2-[N-(p-toluenesulfonyl)azetidin-3-yl]pyrrolidine

Guidance literature:: 4-(tert-butyl-dimethyl-silanyloxy)-2-[1-hydroxymethyl-2-(toluene-4-sulfonylamino)-ethyl]-pyrrolidine-1-carboxylic acid tert-butyl ester; With methanesulfonyl chloride; triethylamine; In tetrahydrofuran; at 4 ℃; for 0.666667h;

With sodium hydride; In N,N-dimethyl-formamide; at 20 ℃; for 4h;
DOI:10.7164/antibiotics.50.567

Reference yield:

: 114676-91-4
1-tert-butyl 2-methyl (2S,4R)-4-{[tert-butyl(dimethyl)silyl]oxy}pyrrolidine-1,2-dicarboxylate

: 149396-15-6
(2S,4R)-N-t-butoxycarbonyl-4-t-butyldimethylsilyloxy-2-[N-(p-toluenesulfonyl)azetidin-3-yl]pyrrolidine

Guidance literature:: Multi-step reaction with 6 steps

1.1: 82 percent / tetrahydrofuran; diethyl ether / 1 h / -20 °C

2.1: 71 percent / TEA; thionyl chloride / toluene / 0.5 h / -50 °C

3.1: 36 percent / t-BuOOH; SeO₂ / CH₂Cl₂ / 20 h / 20 °C

4.1: pyridinium p-toluenesulfonate / CH₂Cl₂

4.2: 9-BBN; Na₂BO₄ / tetrahydrofuran

6.1: Et₃N; MsCl / tetrahydrofuran / 0.67 h / 4 °C

6.2: 77 percent / NaH / dimethylformamide / 4 h / 20 °C

With tert.-butylhydroperoxide; selenium(IV) oxide; thionyl chloride; TEA; pyridinium p-toluenesulfonate; methanesulfonyl chloride; triethylamine; In tetrahydrofuran; diethyl ether; dichloromethane; toluene; 1.1: Grignard reaction / 2.1: Dehydration / 3.1: Oxidation / 4.1: Etherification / 4.2: Reduction / 6.1: Cyclization / 6.2: Cyclization;
DOI:10.7164/antibiotics.50.567

Reference yield:

: 194932-22-4
tert-butyl (2S,4R)-4-{[tert-butyl(dimethyl)silyl]oxy}-2-(prop-1-en-2-yl)pyrrolidine-1-carboxylate

: 149396-15-6
(2S,4R)-N-t-butoxycarbonyl-4-t-butyldimethylsilyloxy-2-[N-(p-toluenesulfonyl)azetidin-3-yl]pyrrolidine

Guidance literature:: Multi-step reaction with 4 steps

1.1: 36 percent / t-BuOOH; SeO₂ / CH₂Cl₂ / 20 h / 20 °C

2.1: pyridinium p-toluenesulfonate / CH₂Cl₂

2.2: 9-BBN; Na₂BO₄ / tetrahydrofuran

4.1: Et₃N; MsCl / tetrahydrofuran / 0.67 h / 4 °C

4.2: 77 percent / NaH / dimethylformamide / 4 h / 20 °C

With tert.-butylhydroperoxide; selenium(IV) oxide; pyridinium p-toluenesulfonate; methanesulfonyl chloride; triethylamine; In tetrahydrofuran; dichloromethane; 1.1: Oxidation / 2.1: Etherification / 2.2: Reduction / 4.1: Cyclization / 4.2: Cyclization;
DOI:10.7164/antibiotics.50.567