3-Oxa-9-azoniatricyclo(3.3.1.02,4)nonane, 9-butyl-7-(3-hydroxy-1-oxo-2-phenylpropoxy)-9-methyl-, bromide, (7(S)-(1alpha,2beta,4beta,5alpha,7beta))-, mixt. with 7-chloro-1,3-dihydro-3-hydroxy-5-phenyl-2H-1,4-benzodiazepin-2-one