Synonyms: Caryoptinol,1-(acetyloxy)-18-de(acetyloxy)-11,16-deepoxy-13,14-didehydro-14,15-dihydro-18-[(2-methyl-1-oxo-2-butenyl)oxy]-15-oxo-,acetate, [1b,3b,18(E)]-; Spiro[naphthalene-1(2H),2'-oxirane],caryoptinol deriv.; (+)-Ajugacumbin C; 2-Butenoic acid, 2-methyl-,[2,4,8-tris(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,2b,4b,4ab,5b,6a,8a,8aa(E)]]-; Ajugacumbin C