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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 279665Generated: October 26, 2026

7-(2-(Imidazol-1-yl)ethoxy)-6-methoxy-3-((pivaloyloxy)methyl)-3,4-dihydroquinazolin-4-one → 7-(2-(Imidazol-1-yl)ethoxy)-6-methoxy-3,4-dihydroquinazolin-4-one

https://huagongshe.com/reaction/279665

Reaction equation

Participants

RoleNameHCIDCharge
Reactant7-(2-(Imidazol-1-yl)ethoxy)-6-methoxy-3-((pivaloyloxy)methyl)-3,4-dihydroquinazolin-4-oneHCID 22030782—
SolventAmmoniaHCID 222—
Product7-(2-(Imidazol-1-yl)ethoxy)-6-methoxy-3,4-dihydroquinazolin-4-oneHCID 13549084490%

Reaction Steps

A solution of 7-(2-(imidazol-1-yl)ethoxy)-6-methoxy-3-((pivaloyloxy)methyl)-3,4-dihydroquinazolin-4-one (640 mg, 1.6 mmol) in saturated methanolic ammonia (10 ml) was stirred for 15 hours at ambient temperature. The volatiles were removed by evaporation, the solid was triturated with ether, collected by filtration and dried under vacuum to give 7-(2-(imidazol-1-yl)ethoxy)-6-methoxy-3,4-dihydroquinazolin-4-one (412 mg, 90%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06362336B1
Source datasetuspto-grants-2002_03
ORD IDord-b375d4d7111f4797bedfa8474a14faf4
Source noteuspto-grants-2002_03