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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1364283Generated: October 31, 2026

Maleic Acid → 7-[4-(4-benzo[b]thiophen-4-yl-piperazin-1-yl)butoxy]-1H-quinolin-2-one maleate

https://huagongshe.com/reaction/1364283

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMaleic AcidHCID 444266—
ReactantBrexpiprazoleHCID 11978813—
SolventMethanolHCID 887—
SolventDichloromethaneHCID 6344—
Product7-[4-(4-benzo[b]thiophen-4-yl-piperazin-1-yl)butoxy]-1H-quinolin-2-one maleateHCID 66886299—

Reaction Steps

A methanol solution of maleic acid was added to a solution of 7-[4-(4-benzo[b]thiophen-4-yl-piperazin-1-yl)butoxy]-1H-quinolin-2-one in methanol and dichloromethane and the solvent was evaporated under reduced pressure. The residue was recrystallized from 80% ethanol and thereby 7-[4-(4-benzo[b]thiophen-4-yl-piperazin-1-yl)butoxy]-1H-quinolin-2-one maleate was obtained in the form of a white powder.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07888362B2
Source datasetuspto-grants-2011_02
ORD IDord-d28a499cf0514a9bbbef6e68d3291f30
Source noteuspto-grants-2011_02