tert-Butyl 1'-methyl-5'-oxo-1',5',6',7'-tetrahydrospiro[piperidine-4,4'-pyrrolo[2,3-c]pyridine]-1-carboxylate 5g

tert-Butyl 1'-methyl-5'-oxo-1',5',6',7'-tetrahydrospiro[piperidine-4,4'-pyrrolo[2,3-c]pyridine]-1-carboxylate 5g