6H-6a,14-Epoxy-1,3-dioxolo[4,5-i][1,3]dioxolo[5,6]indeno [2,1-c][2]benzazepine, 12,12a,13,14-tetrahydro-13-methyl-, [6aS-(6a.alpha.,12a. beta.,14.alpha)] - 87099-54-5 NSC607979 Ribasine