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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1737337Generated: October 31, 2026

Hydrochloric Acid → HCID 21842302, compound

https://huagongshe.com/reaction/1737337

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantHCID 21842230HCID 21842230—
SolventEthyl AcetateHCID 8857—
ProductHCID 21842302HCID 21842302162.8%

Reaction Steps

1.1 g (0.00247 mol) of 7-chloro-3-(5-dipropylaminomethyl-oxazol-2-yl)-8-fluoro-5-methyl-5,6-dihydro-4H-imidazo[1,5-a][1,4]benzodiazepin-6-one in 50 ml of ethyl acetate were treated with 0.50 ml (0.00185 mol) of 3.7N ethanolic hydrochloric acid. After stirring at 0° for 1 hr. the white suspension was suction filtered. There was obtained 0.97 g (81%) of 7-chloro-3-(5-dipropylaminomethyl-oxazol-2-yl)-8-fluoro-5-methyl-5,6-dihydro-4H-imidazo[1,5-a][1,4]benzodiazepin-6-one hydrochloride (1:1) as white crystals; m.p. 243-245°.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05962450
Source datasetuspto-grants-1999_10
ORD IDord-c0fab363b5b840d1913606a89e2674e5
Source noteuspto-grants-1999_10