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Aza-dibenzo- [a, d] -cyclohepten derivatives for use as intermediates in the preparation of therapeutically effective 5-substituted aza-dibenzo-cycloheptenes.
Cycloalkylmethylaminobenzophenone derivatives for use as intermediates in the preparation of 1-cycloalkylmethyl-5-pheny-1H-1,4-benzodiazepin-2 (3H) -ones.
Carbobenzoamide-casugamycin derivatives for use as intermediates in the preparation of biologically active casugamycin derivatives, as well as processes for the preparation of the carbobenzoamide-casugamycin derivatives.