abstract |
PCT No. PCT/US86/01635 Sec. 371 Date Apr. 10, 1987 Sec. 102(e) Date Apr. 10, 1987 PCT Filed Jul. 31, 1986 PCT Pub. No. WO87/01117 PCT Pub. Date Feb. 26, 1987.The present invention relates to processes for the preparation of alkali metal salts of amino acids. Preferably, the present invention relates to solid phase alkali metal salts of cephalosporins of formula III, wherein M is selected from the group consisting of sodium, potassium and lithium, characterized by birefringent lath- and rod-shaped particles, and processes for their manufacture. <IMAGE> III |