3-氮杂螺[5.5]-9-十一酮

1-methylspiro[2H-indole-3,4'-piperidine]

9-氧代-3-氮杂螺[5.5]-7-十一烯-3-羧酸苄酯

benzyl spiro[indole-3,4'-piperidine]-1'-carboxylate

二氮杂螺[4.5]癸烷-2-羧酸-1(2H)-羧酸