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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 598559Generated: October 30, 2026

5-Fluoro-1-benzofuran → (RS)-2-[1-(5-Fluorobenzofuran-2-yl)-methanoyl]-piperazine-1,4-dicarboxylic acid 1-benzyl ester 4-tert-butyl ester

https://huagongshe.com/reaction/598559

Reaction equation

Participants

RoleNameHCIDCharge
Reactant5-Fluoro-1-benzofuranHCID 11788322—
Reactant(RS)-2-(methoxymethylcarbamoyl)piperazine-1,4-dicarboxylic acid 1-benzyl ester 4-tert-butyl esterHCID 77213014—
Product(RS)-2-[1-(5-Fluorobenzofuran-2-yl)-methanoyl]-piperazine-1,4-dicarboxylic acid 1-benzyl ester 4-tert-butyl esterHCID 66968164—

Reaction Steps

The title compound was prepared from (RS)-2-(methoxymethylcarbamoyl)piperazine-1,4-dicarboxylic acid 1-benzyl ester 4-tert-butyl ester (1.25 g, 3.07 mmol) (WO01/00214) and 5-fluorobenzofuran (0.42 g, 3.09 mmol) (WO99/51575) by the method of Description 2 as a pale green gum (0.81 g, 55%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07897618B2
Source datasetuspto-grants-2011_03
ORD IDord-2ecdce870f444363908d77f059cb2668
Source noteuspto-grants-2011_03