2(1H)-Quinazolinone, 4-(cyclopropylethynyl)-5,6-difluoro-3,4-dihydro-4-(trifluoromethyl)-, (4S)- and 2H-3,1-Benzoxazin-2-one, 6-chloro-4-(cyclopropylethynyl)-1,4-dihydro-4-(trifluoromethyl)-, (4S)- AIDS-170528 AIDS170528