Trifluoroacetic acid → 8,9-Dihydro-7h-pyrrolo[3',4':3,4]pyrazolo[1,5-b][1,2,4]triazine

Participants

Reaction Steps

To 77 mg (0.29 mmol) of the product from Step A in dichloromethane (1 mL) was added trifluoroacetic acid (1 mL) and the reaction mixture stirred for 1 h. The solvent was evaporated in vacuo and the residue purified by flash chromatography on a Biotage Horizon® system (silica gel, 0 to 20% ethyl acetate/methanol containing 10% NH4OH gradient) to yield the title compound as a yellow solid. LC/MS 162.2 (M+1).

Provenance & Evidence