Anti-inflammatory products derived from methylene-diphosphonic acid, and process for their preparation
The present invention relates to products of the formula ##STR1## where R.sub.1 is H or alkyl, n is an integer from 0 to 10, and R.sub.2 is chosen from amongst H, unsubstituted or substituted alkyl radicals, a ##STR2## group, a substituted or unsubstituted phenyl radical, a ##STR3## group, where X is oxygen or sulfur, or a heterocyclic radical with 5 or 6 members, which may or may not be fused to a benzene ring and R.sub.3 is H or OH. The present invention also relates to a process for the preparation of the products of the formula (I), and to the drugs, having in particular an anti-inflammatory effect, containing a product of formula (I).
Breliere; Jean C. (Montpellier, FR), Emonds-Alt; Xavier (Montpellier, FR), Garcia; Georges (Saint-Gely-du-Fesc, FR)
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