| 摘要 |
Compounds of the formula I <IMAGE> (I) in which R1 is an aromatic radical, n is 0, 1, 2 or 3, X is an oxy group, a thio group which can be oxidized or an imino group which is unsubstituted or has aliphatic substituents, alk1 and alk2 are identical or different divalent aliphatic radicals, and R2 is hydrogen or a monovalent aliphatic radical and salts thereof have properties which regulate calcium metabolism and can be employed for the treatment of diseases connected with disturbances in this metabolism. They are prepared, for example, by reacting a compound of the formula <IMAGE> (V) in which X3 is carboxyl with a phosphorylating agent and hydrolysing the primary product. |
