Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Phosphorus containing other than solely as part of an...
Patent
1990-03-28
1992-05-05
Shah, Mukund J.
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Phosphorus containing other than solely as part of an...
514 94, 514 95, 514107, 514108, 549 6, 562 13, 548112, 548119, A61K 3166, C07F 938
Patent
active
051108070
ABSTRACT:
Araliphatylaminoalkanediphosphonic acids of formula ##STR1## wherein R.sub.1 is an aromatically substituted aliphatic radical, R.sub.2 is hydrogen or a monovalent aliphatic radical and alk is a divalent aliphatic radical, and their salts, exhibit a pronounced regulatory action on the calcium metabolism and can be used as medicaments for the treatment of diseases that are attributable to calcium metabolism disorders. They are prepared, for example, by reacting a compound of formula ##STR2## wherein X.sub.3 is a carboxy and R.sub.0 is a radical R.sub.2, with phosphorous acid and phosphorous trichloride and hydrolysing the primary product.
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No. 874860 Abstract.
Ciba-Geigy Corporation
Fishman Irving M.
Gupta Y. N.
Kaiser Karen G.
Shah Mukund J.
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