申请人:Henkel Kommanditgesellschaft auf Aktien
公开号:US04064164A1
公开(公告)日:1977-12-20
1,3-Di-amino-alkane-1,1-diphosphonic acids having the formula ##STR1## wherein R.sub.1 and R.sub.2 are members selected from the group consisting of hydrogen and alkyl having 1 to 3 carbon atoms, and R.sub.3 is a member selected from the group consisting of hydrogen and methyl; as well as their water-soluble salts. The 1,3-diamino-alkane-1,1-diphosphonic acids are excellent sequestering agents especially for alkaline earth metal ions. The compounds are useful in pharmaceutical preparations for treatment of disturbances of calcium or phosphate metabolism or cosmetic preparations such as toothpastes or mouth washes for the prevention of tartar and plaque depositions.
具有以下公式的1,3-二氨基-烷基-1,1-二膦酸:其中R.sub.1和R.sub.2是从氢和具有1至3个碳原子的烷基中选择的成员,R.sub.3是从氢和甲基中选择的成员;以及它们的水溶性盐。1,3-二氨基-烷基-1,1-二膦酸是优秀的络合剂,特别适用于碱土金属离子。这些化合物在制药制剂中非常有用,用于治疗钙或磷代谢紊乱,或者用于化妆品制剂,如牙膏或漱口水,以预防牙垢和菌斑沉积。