Synonyms: Caryoptinol,O18-deacetyl-3-deoxy-14,15-dihydro-1-hydroxy-O18-(2-methyl-1-oxo-2-butenyl)-,[1b,18(E)]-; Furo[2,3-b]furan,caryoptinol deriv.; Spiro[naphthalene-1(2H),2'-oxirane], caryoptinol deriv.;(+)-Ajugavensin C; 2-Butenoic acid, 2-methyl-,[8-(acetyloxy)-5-(hexahydrofuro[2,3-b]furan-2-yl)octahydro-4-hydroxy-5,6-dimethylspiro[naphthalene-1(8aH),2'-oxiran]-8a-yl]methylester, [1R-[1a,4b,4ab,5b(2S*,3aR*,6aS*),6a,8a,8aa(E)]]-; Ajugavensin C