Guanidinealkyl-1,1-bisphosphonic acid derivatives, process for their preparation and their use

US5661174A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Christoph Naumann · Niedernhausen, DE
• Hans-Jochen Lang · Hofheim, DE
• Jurgen K. Sandow · Königstein, DE
• Anne-Marie Moura · Moura, FR

Key dates

• Filing date: Mar 1, 1996
• Grant date: Aug 26, 1997
• Expiry date: Mar 1, 2016

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07F9/5728
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Compounds of the tautomeric formula Ia, Ib or Ic, ##STR1## where R is a radical of the formula ##STR2## are effective compounds for the treatment and prophylaxis of degenerative bone disorders. They are used as pharmaceuticals.