1,3-Diazepinone deriv. AIDS-033382 AIDS033382 XM311 [4R-(4.alpha.,5.alpha.,6.beta.,7.beta.)]-Hexahydro-5,6-dihydroxy-1,3-bis(3-hydroxybenzyl)-4,7-bis(phenylmethyl)-2H-1,3-diazepin-2-one