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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 498818Generated: November 1, 2026

Trifluoroacetic acid → 4-[3-(2-Cyclopropyl-pyridin-4-yl)-phenyl]-7-ethoxy-8-trifluoromethyl-1,3-dihydro-benzo[b][1,4]diazepin-2-one

https://huagongshe.com/reaction/498818

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
Reactant(2-{3-[3-(2-Cyclopropyl-pyridin-4-yl)-phenyl]-3-oxo-propionylamino}-5-ethoxy-4-trifluoromethyl-phenyl)-carbamic acid tert-butyl esterHCID 86589447—
SolventDichloromethaneHCID 6344—
Product4-[3-(2-Cyclopropyl-pyridin-4-yl)-phenyl]-7-ethoxy-8-trifluoromethyl-1,3-dihydro-benzo[b][1,4]diazepin-2-oneHCID 22317426—

Reaction Steps

The title compound was prepared from (2-{3-[3-(2-cyclopropyl-pyridin-4-yl)-phenyl]-3-oxo-propionylamino}-5-ethoxy-4-trifluoromethyl-phenyl)-carbamic acid tert-butyl ester (Example M268) (298 mg, 0.51 mmol) by treatment with TFA in CH2Cl2 according to the general procedure N. Obtained as a light yellow solid (179 mg, 75%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06949542B2
Source datasetuspto-grants-2005_09
ORD IDord-bc27bdac08444538bcdce4224299208e
Source noteuspto-grants-2005_09