181305-21-5 AIDS-033137 AIDS033137 N-[2-(2,6-Difluoro-3-(dimethylamino)phenethyl)]-N'-[2-(5-chloropyridyl)]thiourea PETT deriv. Thiourea, N-(5-chloro-2-pyridinyl)-N'-[2-[3-(dimethylamino)-2,6-difluorophenyl]ethyl]-