Aromatically substituted azacycloalkylalkanediphosphonic acids of the formula ##STR1## in which R represents an aromatically substituted azacycloaliphatyl radical that is bonded to the group alk by way of a nitrogen atom and that optionally contains an additional nitrogen atom, and alk represents a divalent aliphatic radical, and their salts, can be used for the treatment of illnesses that can be attributed to calcium metabolism disorders. They are manufactured, for example, by reacting a compound of the formula R--alk--X.sub.3 (IV) in which X.sub.3 represents carboxy, carbamoyl or cyano, with phosphorus acid and phosphorus trichloride and in an intermediate of the formula ##STR2## obtained by starting from compounds of the formula IV in which X.sub.3 represents cyano or carbamoyl and by working up by hydrolysis, or in a salt thereof, replacing the amino group by hydroxy by treatment with nitrous acid.
公式为##STR1##的芳基取代的氮杂环烷基烷基
二膦酸及其盐,其中R表示芳基取代的氮杂环脂肪基基团,通过氮原子与羧基相连,可选含有额外的氮原子;alk表示双价脂肪基基团,可用于治疗可以归因于
钙代谢紊乱的疾病。例如,通过将公式R-alk-X3(IV)的化合物与
磷酸和
三氯化磷反应,以及从公式IV的化合物(其中X3代表
氰基或
氨基甲酰基)开始,并通过
水解处理得到公式##STR2##的中间体,或其盐,通过用
亚硝酸处理取代
氨基以得到羟基。