Synthesis of 2-R-4,5,7-Trimethyl-1-vinyl-4,5,6,7-tetrahydropyrrolo[3,2-c]pyridines

The synthesis of 1-vinyltetrahydropyrrolo[3,2-c]pyridines substituted at C(2) has been accomplished, based on 4,5,7-trimethyl-1-vinyl-4,5,6,7-tetrahydropyrrolo[3,2-c]pyridine and its 2-formyl-substituted derivative.