(2R,3S)-3-Benzenesulfonyl-2-(tetrahydro-pyran-2-yloxymethyl)-pyrrolidine-1,3-dicarboxylic acid 1-tert-butyl ester 3-ethyl ester

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Chemical Name:(2R,3S)-3-Benzenesulfonyl-2-(tetrahydro-pyran-2-yloxymethyl)-pyrrolidine-1,3-dicarboxylic acid 1-tert-butyl ester 3-ethyl ester
CAS No.:155211-09-9
Molecular Formula:C₂₄H₃₅NO₈S
Molecular Weight:497.61
Hs Code.:

Synonyms:(2R,3S)-3-Benzenesulfonyl-2-(tetrahydro-pyran-2-yloxymethyl)-pyrrolidine-1,3-dicarboxylic acid 1-tert-butyl ester 3-ethyl ester

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Chemical Property of (2R,3S)-3-Benzenesulfonyl-2-(tetrahydro-pyran-2-yloxymethyl)-pyrrolidine-1,3-dicarboxylic acid 1-tert-butyl ester 3-ethyl ester

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Technology Process of (2R,3S)-3-Benzenesulfonyl-2-(tetrahydro-pyran-2-yloxymethyl)-pyrrolidine-1,3-dicarboxylic acid 1-tert-butyl ester 3-ethyl ester

There total 2 articles about (2R,3S)-3-Benzenesulfonyl-2-(tetrahydro-pyran-2-yloxymethyl)-pyrrolidine-1,3-dicarboxylic acid 1-tert-butyl ester 3-ethyl ester 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: 93.0%

: 541-41-3
chloroformic acid ethyl ester

: 187409-26-3
(2R)-1-(tert-butyloxycarbonyl)-2-<<(2-tetrahydropyranyl)oxy>methyl>-3-(phenylsulfonyl)pyrrolidine

: 155211-09-9
(2R,3S)-3-Benzenesulfonyl-2-(tetrahydro-pyran-2-yloxymethyl)-pyrrolidine-1,3-dicarboxylic acid 1-tert-butyl ester 3-ethyl ester

Guidance literature:: With n-butyllithium; In tetrahydrofuran; N,N,N,N,N,N-hexamethylphosphoric triamide; at -78 - 20 ℃;
DOI:10.1016/S0040-4039(00)76521-X

Reference yield:

: 116611-45-1
(2R)-2-t-butoxycarbonylamino-3-phenylsulfonyl-1-(2-tetrahydropyranyloxy)propane

: 155211-09-9
(2R,3S)-3-Benzenesulfonyl-2-(tetrahydro-pyran-2-yloxymethyl)-pyrrolidine-1,3-dicarboxylic acid 1-tert-butyl ester 3-ethyl ester

Guidance literature:: Multi-step reaction with 2 steps

1: 90 percent / n-BuLi / tetrahydrofuran / -78 - 20 °C

2: 93 percent / n-BuLi / tetrahydrofuran; hexamethylphosphoric acid triamide / -78 - 20 °C

With n-butyllithium; In tetrahydrofuran; N,N,N,N,N,N-hexamethylphosphoric triamide;
DOI:10.1016/S0040-4039(00)76521-X