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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 233244Generated: October 29, 2026

Ethanol → HCID 18467278, compound

https://huagongshe.com/reaction/233244

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantBenzoyl chlorideHCID 7412—
ReactantN-[2-[4-(6-fluoro1H-indazol-3-yl)-1-piperazinyl]ethyl]phthalimideHCID 18467209—
SolventDiethyl EtherHCID 3283—
ProductHCID 18467278HCID 18467278—

Reaction Conditions

Temperature175 °C

Reaction Steps

A mixture of 2-[2-[4-(6-fluoro-1 H-indazol-3-yl)-1-piperazinyl]ethyl]-1 H-isoindol-1,3-(2H)-dione (6.0 g, 15 mmol) and benzoyl chloride (25 ml) was stirred at 175° C. under N2 for 2.0 hours. The reaction was cooled and diluted with anhydrous Et2O and the resultant hydrochloride salt was collected to yield 7.2 g. The compound was stirred in boiling absolute ethanol (300 ml) for I hour and then at ambient temperature overnight. The solid was collected and dried to afford 6.9 g. Recrystallization from MeOH gave 3.9 g of a light grey solid, m.p. 257°-260° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05591745
Source datasetuspto-grants-1997_01
ORD IDord-6465cf2b82d94862ab2355ba401a2e92
Source noteuspto-grants-1997_01