25495-42-5 3b,12b-Etheno-4H-cyclopenta[1,2]phenanthro[9,10-c]furan-1,3-dione, 10-acetyl-5-(acetyloxy)-3a,5,6,7,7a,9,9a,10,11,12,12a,12c-dodecahydro-7a,9a-dimethyl- AIDS-123957 AIDS123957 NSC3348