AIDS-059650 AIDS059650 CNG Cyclic Cyanoguanidine deriv. Q8248 [4R-(4.alpha.,5.alpha.,6.beta.,7.beta.)]-Hexahydro-5,6-dihydroxy-1,3-bis[[(3-phenylmethoxy)phenyl]methyl]-4,7-bis(phenylmethyl)-2H-1,3-diazepin-2-ylidene]cyanamide