Efavirenz Pentyne Analog

: (S)-6-Chloro-4-(pent-1-ynyl)-4-(trifluoromethyl)-2H-3,1-benzoxazin-2-one.|6-Chloro-1,4-dihydro-4-(1-pentyn-1-yl)-4-(trifluoromethyl)-2H-3,1-benzoxazin-2-one;|6-chloro-4-(pent-1-yn-1-yl)-4-(trifluoromethyl)-1H-benzo[d][1,3]oxazin-2(4H)-one|NA