106805-42-9

Spiro[cyclopropane-1,2'(1'H)-phenanthrene]-1',4'(3'H)-dione,9',10'-bis(acetyloxy)-4'b,5',6',8'a,9',10'-hexahydro-3',6'-dihydroxy-2,4'b,7',8'-tetramethyl-,[2'S-[2'a(S*),3'a,4'bb,6'a,8'aa,9'b,10'a]]-