2(5H)-furanone, 4-[2-[(1R,5S,6R,8S,8aR)-8-(acetyloxy)-8a-[(acetyloxy)methyl]octahydro-5,6-dimethylspiro[naphthalene-1(2H),2'-oxiran]-5-yl]ethyl]- Ajugarin-1 InChI=1/C24H34O7/c1-15-10-20(31-17(3)26)24(14-29-16(2)25)19(6-5-8-23(24)13-30-23)22(15,4)9-7-18-11-21(27)28-12-18/h11,15,19-20H,5-10,12-14H2,1-4H3/t15-,19?,20+,22+,23+,24+/m1/s {(1R,5S,6R,8S,8aR)-8-(acetyloxy)-5,6-dimethyl-5-[2-(5-oxo-2,5-dihydrofuran-3-yl)ethyl]octahydro-8aH-spiro[naphthalene-1,2'-oxiran]-8a-yl}methyl rel-acetate