Trifluoroacetic acid → HCID 66775076, compound

Participants

Reaction Steps

A solution of tert-butyl {1-[2-(7-methoxy-2-oxoquinoxalin-1(2H)-yl)propyl]piperidin-4-yl}carbamate (Intermediate 222, 200 mg, 0.48 mmol) in dichloromethane (30 mL) was treated with trifluoroacetic acid (3 mL). After 2 hours, the reaction was concentrated to dryness. The residue was partitioned between 15% methanol/chloroform. The aqueous phase was re-extracted 3× with 15% methanol/chloroform. The combined organic phases were dried over magnesium sulfate, filtered, and concentrated to dryness giving 160 mg (100%) of the crude product as an oil.

Provenance & Evidence