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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 853065Generated: October 29, 2026

(s)-Tert-butyl 5-methyl-1,2,3-oxathiazolidine-3-carboxylate 2,2-dioxide → (R)-1-(2-tert-Butoxycarbonylamino-1-methyl-ethyl)-4-chloro-7-fluoro-1H-indole-2-carboxylic acid ethyl ester

https://huagongshe.com/reaction/853065

Reaction equation

Participants

RoleNameHCIDCharge
Reactant(s)-Tert-butyl 5-methyl-1,2,3-oxathiazolidine-3-carboxylate 2,2-dioxideHCID 11195739—
Reactant4-chloro-7-fluoro-1H-indole-2-carboxylic acid ethyl esterHCID 69415771—
Product(R)-1-(2-tert-Butoxycarbonylamino-1-methyl-ethyl)-4-chloro-7-fluoro-1H-indole-2-carboxylic acid ethyl esterHCID 69414753—

Reaction Steps

The title compound, ISP-MS: m/e=399.4 (M+H+) and αD20=−54.7, was prepared in accordance with the general method of example 12b) from 4-chloro-7-fluoro-1H-indole-2-carboxylic acid ethyl ester and (S)-5-methyl-2,2-dioxo-[1,2,3]oxathiazolidine-3-carboxylic acid tert-butyl ester.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07253281B2
Source datasetuspto-grants-2007_08
ORD IDord-fc4d3a9f17164cdbb8fdf54c07a4ed37
Source noteuspto-grants-2007_08