Bromide ion → HCID 24989976, compound

Participants

Reaction Steps

To a solution of 7-benzyl-3-carbamoyl-1-methyl-2-o-tolyl-4,5-dihydro-1H-pyrrolo[2,3-f]isoquinolin-7-ium; bromide XXV (1.64 mmol) in dry DMSO (1 mL), 1M potassium tert-butoxide (11.5 mmol) in THF was added. The solution was bubbled with dry air overnight. Volatiles were removed, the residue was suspended in DCM, washed with water, dried (Na2SO4), filtered and the solvent evaporated. Chromatography on silica gel (eluant: DCM/MeOH 20:1) afforded the desired compound.

Provenance & Evidence