6,10-Methanobenzocyclodecene-3,7,11-triol,1,2,3,4,4a,5,6,7,8,11,12,12a-dodecahydro-9,12a,13,13-tetramethyl-4-methylene-,3-acetate, [3S-(3a,4aa,6b,7b,11b,12ab)]-