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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2114311Generated: October 27, 2026

Pyrazole → (r)-4-Bromo-5-(2-chloro-benzoylamino)-1-methyl-pyrazole-3-carboxylic acid (azepan-3-yl)-amide

https://huagongshe.com/reaction/2114311

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyrazoleHCID 1048—
Reactant1-AminopiperidineHCID 16658—
Reactant2-Chlorobenzoyl chlorideHCID 69110—
ReactantBoc-D-Lys-OHHCID 7018770—
ReactantBenzyl (R)-3-((tert-butoxycarbonyl)amino)azepane-1-carboxylateHCID 69152935—
ReactantHCID 178461679HCID 178461679—
Product(r)-4-Bromo-5-(2-chloro-benzoylamino)-1-methyl-pyrazole-3-carboxylic acid (azepan-3-yl)-amideHCID 59773409—

Reaction Steps

The pyrazole acid, prepared by coupling methyl ester 85 (Procedure 26) with 2-chlorobenzoyl chloride (21) followed by hydrolysis and bromination as shown in Procedure 8, was coupled to (R)-3-tert-butoxycarbonylaminoazepane-1-carboxylic acid benzyl ester (prepared as described in Procedure 23 using Boc-D-Lys-OH (Bachem, A-2705) followed by Cbz protection of the piperidine amine using the method of Procedure 30) using Procedure 3. Removal of the Cbz group using the method of Procedure 20 afforded the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07432379B2
Source datasetuspto-grants-2008_10
ORD IDord-068b87414bc64e778bb2510284b30118
Source noteuspto-grants-2008_10