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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 498714Generated: October 30, 2026

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

https://huagongshe.com/reaction/498714

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
Reactant(5-Ethoxy-2-{3-[3-(2-ethyl-pyridin-3-yl)-phenyl]-3-oxo-propionylamino}-4-trifluoromethyl-phenyl)-carbamic acid tert-butyl esterHCID 86589399—
SolventDichloromethaneHCID 6344—
Product7-Ethoxy-4-[3-(2-ethyl-pyridin-3-yl)-phenyl]-8-trifluoromethyl-1,3-dihydro-benzo[b][1,4]diazepin-2-oneHCID 22317947—

Reaction Steps

The title compound was prepared from (5-ethoxy-2-{3-[3-(2-ethyl-pyridin-3-yl)-phenyl]-3-oxo-propionylamino}-4-trifluoromethyl-phenyl)-carbamic acid tert-butyl ester (Example M215) (255 mg, 0.45 mmol) by treatment with TFA in CH2Cl2 according to the general procedure N. Obtained as a light yellow solid (148 mg, 73%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06949542B2
Source datasetuspto-grants-2005_09
ORD IDord-381014606d9b443ba7f9a10564380497
Source noteuspto-grants-2005_09