AMINOACYL DERIVATIVES OF GEM DIPHOSPHONIC ACIDS, METHOD FOR THE PRODUCTION THEREOF AND PHARMACEUTICAL PREPARATIONS THAT CONTAIN THEY

摘要

PCT No. PCT/EP92/00746 Sec. 371 Date Oct. 8, 1993 Sec. 102(e) Date Oct. 8, 1993 PCT Filed Apr. 3, 1992 PCT Pub. No. WO92/18512 PCT Pub. Date Oct. 29, 1992.Diphosphonic acids of formula (I) are useful as antitumor agents.