(-)-31-Acetylcyclomicrophylline-A (7-(Dimethylamino)-1-(1-(dimethylamino)ethyl)-2-hydroxy-3a,6,12a-trimethyl-2,3,3a,3b,5a,6,7,8,9,11,12,12a-dodecahydro-1H-cyclopenta[a]cyclopropa[e]phenanthren-6-yl)methyl acetate AIDS-138608 AIDS138608 NSC645753