6,12-diazadispiro[4.1.47.25]tridecan-13-one

6-hydroxyimino-12-methoxy-12-azadispiro[4.1.47.25]tridecan-13-one

6,12-dioxa-3,9-dithiadispiro[4.1.47.25]tridecan-13-imine

celaphanol a

Cytochalasin J

6-methyl-6,12-methano-6H,12H,13H-benzopyran(4,3-d)benzodioxocin-13-one

3-hydroxy-3',6',10,11b-tetramethylspiro[1,2,3,4,4a,5,6,6a,6b,7,8,10,10a,11a-tetradecahydrobenzo[a]fluorene-9,2'-3a,4,5,6,7,7a-hexahydro-3H-furo[3,2-b]pyridine]-11-one