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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1726224Generated: October 31, 2026

Benzoic acid, 3-amino-, methyl ester → 4-[(5-Chloro-2-fluoro-benzyl)-(3-methoxycarbonyl-phenyl)-amino]-piperidine-1-carboxylic acid tert-butyl ester

https://huagongshe.com/reaction/1726224

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzoic acid, 3-amino-, methyl esterHCID 78274—
Reactanttert-Butyl 4-oxopiperidine-1-carboxylateHCID 735900—
Reactant2-(Bromomethyl)-4-chloro-1-fluorobenzeneHCID 2773626—
Product4-[(5-Chloro-2-fluoro-benzyl)-(3-methoxycarbonyl-phenyl)-amino]-piperidine-1-carboxylic acid tert-butyl esterHCID 68971720—

Reaction Steps

Using general procedure A with methyl 3-aminobenzoate (2.16 g, 14.3 mmol) and 1-Boc-4-piperidone (2.39 g, 12.0 mmol) followed by general procedure H with the resulting amine and 5-chloro-2-fluorobenzyl bromide (65%, 1.04 g, 3.0 mmol) gave 4-[(5-chloro-2-fluoro-benzyl)-(3-methoxycarbonyl-phenyl)-amino]-piperidine-1-carboxylic acid tert-butyl ester as a white foam (911 mg, 47% over 2 steps).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07491735B2
Source datasetuspto-grants-2009_02
ORD IDord-dc9ea1abc54d4352b9a9cc84e47803a4
Source noteuspto-grants-2009_02