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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1794134Generated: November 2, 2026

(3-Bromo-2,6-difluorophenyl)methanol → cis-2,6-Dimethyl-piperazine-1,4-dicarboxylic acid 1-(3-bromo-2,6-difluoro-benzyl) ester 4-tert-butyl ester

https://huagongshe.com/reaction/1794134

Reaction equation

Participants

RoleNameHCIDCharge
Reactant(3-Bromo-2,6-difluorophenyl)methanolHCID 22219889—
Reactantrel-1,1-Dimethylethyl (3R,5S)-4-(chlorocarbonyl)-3,5-dimethyl-1-piperazinecarboxylateHCID 86585999—
Productcis-2,6-Dimethyl-piperazine-1,4-dicarboxylic acid 1-(3-bromo-2,6-difluoro-benzyl) ester 4-tert-butyl esterHCID 69141723—

Reaction Steps

The compound was prepared from (3-bromo-2,6-difluoro-phenyl)-methanol and 4-chlorocarbonyl-cis-3,5-dimethyl-piperazine-1-carboxylic acid tert-butyl ester according to the procedures described in Example 121 and 54 to give the product as a colorless oil (9.75 g); MS (ISP): 482.3 (M+NH4)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07022707B2
Source datasetuspto-grants-2006_04
ORD IDord-8c0bbe66f86d411bb0fd0a66661aceb1
Source noteuspto-grants-2006_04