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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1856077Generated: October 26, 2026

Ethanethioic acid, S-(3-chloro-2-methyl-3-oxopropyl) ester → 1-(3-acetylthio-1-oxopropyl)-4,5-dihydro-4-hydroxy-1H-pyrrole-2-carboxylic acid

https://huagongshe.com/reaction/1856077

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanethioic acid, S-(3-chloro-2-methyl-3-oxopropyl) esterHCID 103458—
ReactantL-Proline 1,1-dimethylethyl esterHCID 6453108—
Reactant3-(Acetylsulfanyl)propanoyl chlorideHCID 12943122—
Reactant4-tert-butoxy-L-proline tertbutyl esterHCID 54533217—
Product1-(3-acetylthio-1-oxopropyl)-4,5-dihydro-4-hydroxy-1H-pyrrole-2-carboxylic acidHCID 23343191—

Reaction Steps

By substituting 4-tert-butoxy-L-proline tertbutyl ester for the L-proline tert-butyl ester and 3-acetylthiopropanoyl chloride for the 3-acetylthio-2-methylpropanoyl chloride in the procedure of Example 1, 1-(3-acetylthio-1-oxopropyl)-4,5-dihydro-4-hydroxy-1H-pyrrole-2-carboxylic acid is obtained.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04217458
Source datasetuspto-grants-1980_08
ORD IDord-a543ee68c78849d6978a9096dae03611
Source noteuspto-grants-1980_08