154277-93-7

Spiro[4H-cyclopenta[a]phenanthrene-4,3'(2'H)-cyclopenta[7,8]phenanthro[2,1-b]pyran]-3(2H)-one,1,1',5,5',6,6',6'a,6'b,7,7',8',8'a,9,9',10,10',11,11',12,12',13,13',13'a,15,16,17-hexacosahydro-6'a,8'a,10,13-tetramethyl-9',17-bis(1,4,5-trimethylhexyl)-,[3'S-[