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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 634706Generated: October 30, 2026

1-Methylpiperazine → HCID 21260288, compound

https://huagongshe.com/reaction/634706

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-MethylpiperazineHCID 53167—
Reactant7-(2-Bromoethoxy)-6-methoxy4-phenoxyquinazolineHCID 21260311—
ProductHCID 21260288HCID 2126028892%

Reaction Steps

A mixture of 1-methylpiperazine (7 ml) and 7-(2-bromoethoxy)-6-methoxy4-phenoxyquinazoline (1.0 g, 2.67 mmol), (prepared as described for the starting material in Example 22), was stirred at ambient temperature for 5 hours. The excess 1-methylpiperazine was removed by evaporation and the residue was partitioned between aqueous sodium hydrogen carbonate and methylene chloride. The organic phase was separated, passed through phase separating paper and the volatiles removed by evaporation to give 6-methoxy-7-(2-(4-methylpiperazin-1-yl)ethoxy)-4-phenoxyquinazoline (970 mg, 92%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06184225B2
Source datasetuspto-grants-2001_02
ORD IDord-f0da9c14344c432686be953fbc4d3b2c
Source noteuspto-grants-2001_02