Synonyms: AC1O5XCX;4alpha-Hydroxy-6beta-angeloxy-10beta-acetoxy-9-oxofuranoeremophilane;[(4S,4aS,5R,8aS)-8a-acetyloxy-5-hydroxy-3,4a,5-trimethyl-9-oxo-4,6,7,8-tetrahydrobenzo[f][1]benzofuran-4-yl] (Z)-2-methylbut-2-enoate;100009-94-7;2-Butenoic acid, 2-methyl-, 8a-(acetyloxy)-4,4a,5,6,7,8,8a,9-octahydro-5-hydroxy-3,4a,5-trimethyl-9-oxonaphtho(2,3-b)furan-4-yl ester, (4R-(4alpha(Z),4aalpha,5beta,8aalpha))-