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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2244551Generated: October 25, 2026

Piperazine → Norquetiapine

https://huagongshe.com/reaction/2244551

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPiperazineHCID 4837—
Reactant2-((2-Aminophenyl)thio)benzoic acidHCID 10955828—
ProductNorquetiapineHCID 11369918—

Reaction Steps

simultaneously conducting cyclization and chlorination reactions of 2-(2-aminophenylthio)benzoic acid which is expressed by Formula 7 in an organic solvent in the presence of a halogenating agent and a base, and continuously reacting a resulting compound with piperazine without separation, to produce 11-piperazinyl-dibenzo[b,f][1,4]thiazepine expressed by Formula 4; and

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07678902B2
Source datasetuspto-grants-2010_03
ORD IDord-817dfa2ae37e420e9488fec260172b8e
Source noteuspto-grants-2010_03