(4a.alpha.,5.alpha.,6.beta.,7.beta.)-3,3'-[Tetrahydro-5,6-dihydroxy-2-oxo-4,7-bis(phenylmethy)-1H-1,3-diazepine-1,3(2H)-diyl]bis(methylene)bis[N-4-pyridinylbenzamide] 183854-15-1 AIDS-042915 AIDS042915 Benzamide, 3,3'-[[(4R,5S,6S,7R)-tetrahydro-5,6-dihydroxy-2-oxo-4,7-bis(phenylmethyl)-1H-1,3-diazepine-1,3(2H)-diyl]bis(methylene)]bis[N-4-pyridinyl- Cyclic urea deriv.