AIDS-020884 AIDS020884 Benzopyrazin-7-ylcarbamic acid,5-amino-3,4-dihydro-2(1H)- oxo-3-phenyl-,methyl ester,mixture [86:14] with Benzo- pyrazin-7-ylcarbamic acid,5-amino-2(1H)-oxo-3-phenyl, methyl ester hydrate [10:7]