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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1794137Generated: November 1, 2026

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

https://huagongshe.com/reaction/1794137

Reaction equation

Participants

RoleNameHCIDCharge
Reactant(3-Bromo-2,6-difluorophenyl)methanolHCID 22219889—
Reactant(R)-4-Chlorocarbonyl-3-ethyl-piperazine-1-carboxylic acid tert-butyl esterHCID 86586001—
Product(R)-2-Ethyl-piperazine-1,4-dicarboxylic acid 4-tert-butyl ester 1-(3-bromo-2,6-difluoro-benzyl) esterHCID 69141503—

Reaction Steps

The compound was prepared from (3-bromo-2,6-difluoro-phenyl)-methanol and (R)-4-chlorocarbonyl-3-ethyl-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 (9.22 g); MS (ISP): 480.3, 482.3 (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07022707B2
Source datasetuspto-grants-2006_04
ORD IDord-7d2836a97a074568a47ca6f1d41ddaea
Source noteuspto-grants-2006_04