the derivation of this conformation was based on comparisons of computer-generated 3-dimensional structures obtained from single-crystal x-ray data for diazepam , ( r ) - and ( s ) -1,3-dimethyl-5- ( 2-fluorophenyl ) -7-nitro-1,3-dihydro-2h-1,4-benzodiazepin-2- one , and the structurally rigid ethyl ( s ) -7-chloro-11,12,13,13 alpha-tetrahydro-9-oxo-9h-imidazo [ 1,5-alpha ] pyrrolo [ 2,1-d ] [ 1,4 ] benzodiazepine-1-carboxylate .
C0393005
s
C0393003
oxo