Trifluoroacetic acid → HCID 24811285, compound

Participants

Reaction Steps

Trifluoroacetic acid (0.25 mL) was added to a mixture composed of di-tert-butyl {7-cyano-2-[(4-methoxy-3,5-dimethylpyridin-2-yl)methyl]-7,8-dihydro-2H-6-thia-1,2,3,5-tetraazaacenaphthylen-4-yl}imidodicarbonate of Step 4) of Example 3 (30 mg) and dichloromethane (1 mL). Then, the ice bath was removed and the mixture was stirred for one hour. After confirming that the raw material disappeared, the reaction mixture was concentrated under reduced pressure. A saturated sodium bicarbonate solution was added to the resulting residue. The precipitated solid was collected by filtration and washed with water. The resulting solid was dried to obtain the title compound (13.8 mg, 71%).

Provenance & Evidence