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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 896359Generated: October 29, 2026

Hydrochloric Acid → HCID 69804566, compound

https://huagongshe.com/reaction/896359

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantTrifluoroacetic acidHCID 6422—
Reactant1,4-DioxaneHCID 31275—
ReactantHCID 69708345HCID 69708345—
SolventDichloromethaneHCID 6344—
ProductHCID 69804566HCID 6980456692.4%

Reaction Steps

A solution of 2,2-dimethyl-propionic acid 4-{5-(tert-butoxycarbonylamino-methyl)-2-[2,4-dioxo-3-(2,2,2-trifluoro-ethyl)-3,4-dihydro-2H-quinazolin-1-ylmethyl]-benzoimidazol-1-yl}-butyl ester (59 mg, 0.089 mmol) and TFA (138 μL, 1.79 mmol) in dichloromethane (2 mL) was stirred for 4 hrs at room temperature. The volatiles were removed in vacuo and the residue dissolved in dichloromethane. A solution of 4N HCl in dioxane (233 μL, 10 equiv.) was added, followed by concentration. The residue was triturated from diethyl ether and filtered to give the title compound (46 mg, 87%) as a tan solid:

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06919331B2
Source datasetuspto-grants-2005_07
ORD IDord-9ffad9f54aca41d297b11c096af01ba3
Source noteuspto-grants-2005_07