Ammonia → HCID 178464870, compound

Participants

Reaction Conditions

Reaction Steps

130 mg (0.19 mmol) of rac.-N-[1-(5-chloro-1H-benzimidazol-2-yl)ethyl]-4-[3-(ethoxycarbonyl)-5,6-dihydro-4H-cyclopentapyrazol-1-yl]-3-trifluoromethylbenzamide is dissolved in 5 mL of methanol, combined with 6 mL of concentrated ammonia solution, and stirred for 17 hours at 65° C. in a Schlenk flask. The cooled reaction solution is poured onto ice water, adjusted to pH 7.5 with concentrated hydrochloric acid and extracted with ethyl acetate. The organic phases are dried and concentrated by evaporation. The residue is chromatographed on silica gel, eluting with ethyl acetate/ethanol (0%-5%). Yield: 50 mg (51%); Rf value: 0.38 (silica gel; ethyl acetate/ethanol=9:1); C24H20ClF3N6O2 (516.91); mass spectrum: (M−H)−=515/517 (chlorine isotope).

Provenance & Evidence