167826-26-8 methanesulfonamide, N,N'-[[(4R,5S,6S,7R)-tetrahydro-5,6-dihydroxy-2-oxo-4,7-bis(phenylmethyl)-1H-1,3-diazepine-1,3(2H)-diyl]di-5,1-pentanediyl]bis- 167826-35-9 benzamide, N,N'-[[(4R,5S,6S,7R)-tetrahydro-5,6-dihydroxy-2-oxo-4,7-bis(phenylmethyl)-1H-1,3-diazepine-1,3(2H)-diyl]di-5,1-pentanediyl]bis-