The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 10, 1992
Filed:
Nov. 15, 1989
Knut A Jaeggi, Basel, CH;
Ciba-Geigy Corporation, Ardsley, NY (US);
Abstract
Phenylaliphatylaminoalkanediphosphonic acids of the formula ##STR1## in which R.sub.1 is an aliphatic hydrocarbon radical having 4 and not more than 7 C atoms and substituted by phenyl, R.sub.2 is a monovalent aliphatic hydrocarbon radical having 1 and not more than 4 C atoms and alk is a divalent aliphatic hydrocarbon radical having 2 and not more than 4 C atoms, and their salts, have a particularly pronounced regulating action on calcium metabolism and can be used as medicaments for the treatment of diseases to be attributed to disturbances thereof. They are prepared, for example, for reacting a compound of the formula ##STR2## in which X.sub.3 denotes carboxyl, with a phosphorylating agent and hydrolyzing the primary product.