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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 498745Generated: October 29, 2026

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

https://huagongshe.com/reaction/498745

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
Reactant(5-Ethoxy-2-{3-oxo-3-[3-(2-trifluoromethyl-pyridin-4-yl)-phenyl]-propionylamino}-4-trifluoromethyl-phenyl)-carbamic acid tert-butyl esterHCID 86589430—
SolventDichloromethaneHCID 6344—
Product7-Ethoxy-8-trifluoromethyl-4-[3-(2-trifluoromethyl-pyridin-4-yl)-phenyl]-1,3-dihydro-benzo[b][1,4]diazepin-2-oneHCID 22317738—

Reaction Steps

The title compound was prepared from (5-ethoxy-2-{3-oxo-3-[3-(2-trifluoromethyl-pyridin-4-yl)-phenyl]-propionylamino}-4-trifluoromethyl-phenyl)-carbamic acid tert-butyl ester (Example M248) (0.30 g, 0.49 mmol) by treatment with TFA in CH2Cl2 according to the general procedure N. Obtained as a light yellow solid (220 mg, 91%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06949542B2
Source datasetuspto-grants-2005_09
ORD IDord-5ea114d721274a50b4d209cc8860c662
Source noteuspto-grants-2005_09