Synonyms: 2(3H)-Furanone,5-[(1S,2E,3aR,8S,10aS,10bR)-decahydro-2-(3-methoxy-4-methyl-5-oxo-2(5H)-furanylidene)-1-methyl-2H-furo[3,2-c]pyrrolo[1,2-a]azepin-8-yl]dihydro-3-methyl-,(3S,5S)- (9CI); 2(3H)-Furanone, 5-[decahydro-2-(3-methoxy-4-methyl-5-oxo-2(5H)-furanylidene)-1-methyl-2H-furo[3,2-c]pyrrolo[1,2-a]azepin-8-yl]dihydro-3-methyl-,[1S-[1a,2E,3ab,8a(3R*,5R*),10aa,10ba]]-;2H-Furo[3,2-c]pyrrolo[1,2-a]azepine, 2(3H)-furanone deriv.; Isoprotostemonin;Isoprotostemonine