38991-80-9

9H-10,4a-(Epoxymethano)phenanthrene-9,12- dione,7-ethenyl-1,2,3,4,4b,5,6,7,10,10adecahydro- 4b,10-dihydroxy-1,1,7-trimethyl-,[4aR-(4aR,4b&acirc