83807-70-9 Phenanthro(3,2-b)furan-4-methanol, 1,2,3,4,4a,5,6,6a,7,11,11a,11b-dodecahydro-4,7,11b-trimethyl-, acetate, (4R-(4alpha,4aalpha,6abeta,7alpha,11aalpha,11bbeta))-