2H-Oxireno[h][2]benzoxacyclotetradecin-2,8(1aH)-dione, 5,6,13,14,15,15a-hexahydro-9,13,14-trihydroxy-11-methoxy-6-methyl-, (13S,14R)- AIDS-031417 AIDS031417 Hypothemycin NSC354462