NOVEL BISPHOSPHONATES, PROCESS FOR THEIR PREPARATION AND PHARMACEUTICAL COMPOSITIONS CONTAINING THEM

摘要

Bisphosphonate compounds, their preparation and pharmaceutical compositions which contain such compounds as active ingredients. Such compositions are generally administered per os and they are effective for treating irregularities of the calcium metabolism. Preferred compounds have a 2-aminopyrimidine type ring. Similar unsubstituted and substituted heterocyclic compounds were found to have a similar activity.