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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1074408Generated: October 26, 2026

Sodium Hydroxide → Pentiapine

https://huagongshe.com/reaction/1074408

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium HydroxideHCID 14798—
Reactant5-(4-Carboethoxypiperazino)-imidazo[2,1-b][1,3,5]benzothiadiazepineHCID 13178274—
ReactantAluminium lithium hydrideHCID 21226445—
SolventTetrahydrofuranHCID 8028—
ProductPentiapineHCID 54742—

Reaction Steps

To the solution of 0.2 g of 5-(4-carboethoxypiperazino)-imidazo[2,1-b][1,3,5]benzothiadiazepine in 2 ml of dry tetrahydrofuran, 100 mg of lithium aluminum hydride are added at once and the mixture is refluxed under nitrogen for 48 hrs. The mixture is cooled to room temperature, stirred with 0.2 ml of 30% sodium hydroxide, and filtered. The filtrates were evaporated to dryness and the product is purified to give 5-(4-methylpiperazino)-imidazo[2,1-b][1,3,5]benzothiadiazepine, melting at 145°-7°, and identical to compound obtained in example 1.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04391808
Source datasetuspto-grants-1983_07
ORD IDord-673815c62fd1473286d49b5721daa2ad
Source noteuspto-grants-1983_07