C07C231/12—Preparation of carboxylic acid amides by reactions not involving the formation of carboxamide groups
C—CHEMISTRY; METALLURGY
C07—ORGANIC CHEMISTRY
C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
C07C237/00—Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by amino groups
C07C237/24—Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by amino groups having the carbon atom of at least one of the carboxamide groups bound to a carbon atom of a ring other than a six-membered aromatic ring of the carbon skeleton
C07C237/26—Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by amino groups having the carbon atom of at least one of the carboxamide groups bound to a carbon atom of a ring other than a six-membered aromatic ring of the carbon skeleton of a ring being part of a condensed ring system formed by at least four rings, e.g. tetracycline
