Patent Number: 6,252,063

Title: Crystalline salts of a carbapenem antibiotic

Abstract: Crystalline salts of an amorphous, unstable carbapenem antibiotic having the formula: ##STR1## are disclosed, wherein R.sup.- represents beyslate, tosylate, napsylate, saccharate or alizarate.

Inventors: Miller; Ross A. (Fanwood, NJ), Ceglia; Scott S. (Woodbridge, NJ)

Assignee: Merck & Co., Inc.

International Classification: C07D 519/00 (20060101); A61K 031/499 (); C07D 477/08 (); C07D 477/14 ()

Expiration Date: 06/26/2018