Phenylaliphatylaminoalkanediphosphonic acids of the formula ##STR1## in which R.sub.1 is an aliphatic hydrocarbon radical having 4 and not more than 7 C atoms and substituted by phenyl, R.sub.2 is a monovalent aliphatic hydrocarbon radical having 1 and not more than 4 C atoms and alk is a divalent aliphatic hydrocarbon radical having 2 and not more than 4 C atoms, and their salts, have a particularly pronounced regulating action on calcium metabolism and can be used as medicaments for the treatment of diseases to be attributed to disturbances thereof. They are prepared, for example, for reacting a compound of the formula ##STR2## in which X.sub.3 denotes carboxyl, with a phosphorylating agent and hydrolyzing the primary product.
Phenylaliphatylaminoalkanediphosphonic acids的中文翻译为:苯基脂肪基
氨基烷
二膦酸。其中R.sub.1是一个具有4个至7个碳原子的脂肪烃基,被苯基取代,R.sub.2是一个具有1个至4个碳原子的一价脂肪烃基,alk是一个具有2个至4个碳原子的二价脂肪烃基,它们的盐对
钙代谢具有特别显著的调节作用,并可用作治疗与其紊乱有关的疾病的药物。例如,它们可通过将具有以下结构的化合物与
磷酸化剂反应并
水解初级产物来制备:其中X.sub.3表示羧基。