Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 572964Generated: October 29, 2026

Hydrochloric Acid → N-(3-(1H-imidazol-1-yl)-5-(trifluoromethyl)phenyl)-3-(imidazo[1,2-a]pyrazin-3-ylethynyl)-4-methylbenzamide mono hydrochloride salt

https://huagongshe.com/reaction/572964

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantN-(3-(1H-imidazol-1-yl)-5-(trifluoromethyl)phenyl)-3-(imidazo[1,2-a]pyrazin-3-ylethynyl)-4-methylbenzamideHCID 16214860—
SolventAcetonitrileHCID 6342—
ProductN-(3-(1H-imidazol-1-yl)-5-(trifluoromethyl)phenyl)-3-(imidazo[1,2-a]pyrazin-3-ylethynyl)-4-methylbenzamide mono hydrochloride saltHCID 86614280—

Reaction Conditions

Temperature50 °C

Reaction Steps

N-(3-(1H-imidazol-1-yl)-5-(trifluoromethyl)phenyl)-3-(imidazo[1,2-a]pyrazin-3-ylethynyl)-4-methylbenzamide (0.94 mmol) can be suspended in MeCN (10 ml) and heated with stirring to a temperature of 45 to 55° C. (hot plate temperature). Hydrochloric acid (1.1 eq 1M solution in EtOH) is added to obtain dissolution. Within a few minutes, a precipitate is allowed to form. The suspension can be cooled to ambient temperature and then filtered and washed with MeCN (1×1.5 ml liquors+1×1.5 ml fresh). The solid can be dried at 50° C. under vacuum to constant weight.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09029533B2
Source datasetuspto-grants-2015_05
ORD IDord-9890a950676a4a38b4b229b5fcf90ce7
Source noteuspto-grants-2015_05