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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1715732Generated: October 26, 2026

Ammonia → Irbesartan

https://huagongshe.com/reaction/1715732

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmoniaHCID 222—
ReactantIrbesartan hydrochlorideHCID 11568906—
SolventWaterHCID 962—
SolventTolueneHCID 1140—
ProductIrbesartanHCID 3749—

Reaction Steps

100 g of anhydrous irbesartan hydrochloride was taken in a mixture of 250 ml toluene and 250 ml water. The pH of the reaction mass was adjusted to 6.5 to 7.0 with aqueous ammonia at 25-30° C. and stirred for about 30 minutes and filtered. The product was dried at 60° C. under vacuum to yield Form A of irbesartan free base.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07799928B2
Source datasetuspto-grants-2010_09
ORD IDord-63630d540c32495c932d321ae0909986
Source noteuspto-grants-2010_09