4a,7a-Epoxy-5H-cyclopenta(a)cyclopropa(f)cycloundecen-4(1H)-one, 2,7,10,11-tetrakis(acetyloxy)-1a,2,3,6,7,10,11,11a-octahydro-1,1,3,6,9-pentamethyl-, (1aR-(1aR*,2R*,3R*,4aR*,6S*,7S*,7aS*,8E,10R*,11S*,11aS*))- 51906-02-6 Ingol-3,7,8,12-tetraacetate