Synonyms: 2-Butenoicacid, 2-methyl-,[(1R,4aR,5S,6R,8S,8aR)-8-(acetyloxy)-5-[2-(2,5-dihydro-5-oxo-3-furanyl)ethyl]octahydro-5,6-dimethylspiro[naphthalene-1(8aH),2'-oxiran]-8a-yl]methylester, (2E)- (9CI); Caryoptinol, 18-de(acetyloxy)-11,16-deepoxy-13,14-didehydro-3-deoxy-14,15-dihydro-18-[(2-methyl-1-oxo-2-butenyl)oxy]-15-oxo-,[18(E)]-; Spiro[naphthalene-1(2H),2'-oxirane], caryoptinol deriv.;(+)-Ajugacumbin A; 2-Butenoic acid, 2-methyl-,[8-(acetyloxy)-5-[2-(2,5-dihydro-5-oxo-3-furanyl)ethyl]octahydro-5,6-dimethylspiro[naphthalene-1(8aH),2'-oxiran]-8a-yl]methylester, [1R-[1a,4ab,5b,6a,8a,8aa(E)]]-; Ajugacumbin A