Synonyms: 1H,7H-Naphtho[1,8-bc:4,4a-c']difuran-10a(8H)-carboxylicacid, 10-(acetyloxy)octahydro-3,5-dihydroxy-4-methyl-8-[(2-methyl-1-oxo-2-butenyl)oxy]-4-(3a,6a,7,7a-tetrahydro-6a-hydroxy-7a-methyl-2,7-methanofuro[2,3-b]oxireno[e]oxepin-1a(2H)-yl)-,methyl ester, [2aR-[2aa,3b,4b(1aR*,2S*,3aS*,6aS*,7S*,7aS*),4ab,5a,7aS*,8b(E),10b,10aa,10bb]]-; 1H,7H-Naphtho[1,8-bc:4,4a-c']difuran-10a(8H)-carboxylic acid,10-(acetyloxy)octahydro-3,5-dihydroxy-4-methyl-8-[[(2E)-2-methyl-1-oxo-2-butenyl]oxy]-4-[(1aR,2S,3aS,6aS,7S,7aS)-3a,6a,7,7a-tetrahydro-6a-hydroxy-7a-methyl-2,7-methanofuro[2,3-b]oxireno[e]oxepin-1a(2H)-yl]-,methyl ester, (2aR,3S,4S,4aR,5R,7aS,8S,10R,10aS,10bR)- (9CI);2,7-Methanofuro[2,3-b]oxireno[e]oxepin,1H,7H-naphtho[1,8-bc:4,4a-c']difuran-10a(8H)-carboxylic acid deriv.;Azadirachtin H