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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1697573Generated: October 25, 2026

Tert-butyl acetoacetate → (2S,4R)-4-(4-Fluoro-2-trifluoromethyl-benzenesulfonyl)-1-(3-oxo-butyryl)-pyrrolidine-2-carboxylic Acid Methyl Ester

https://huagongshe.com/reaction/1697573

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTert-butyl acetoacetateHCID 15538—
Reactant(2S,4R)-4-(4-Fluoro-2-trifluoromethyl-benzenesulfonyl)-pyrrolidine-2-carboxylic Acid Methyl EsterHCID 66770389—
Product(2S,4R)-4-(4-Fluoro-2-trifluoromethyl-benzenesulfonyl)-1-(3-oxo-butyryl)-pyrrolidine-2-carboxylic Acid Methyl EsterHCID 86646828—

Reaction Steps

In analogy to the procedure described in example 192f, (2S,4R)-4-(4-fluoro-2-trifluoromethyl-benzenesulfonyl)-pyrrolidine-2-carboxylic acid methyl ester was reacted with tert-butyl acetoacetate to give the title compound as yellow oil. MS (ESI): m/z=440.2 [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08163793B2
Source datasetuspto-grants-2012_04
ORD IDord-6d4ddc6c4d054ccea558605a33dfa90f
Source noteuspto-grants-2012_04