Studies on the Stability of .DELTA.2 and .DELTA.3 Cephem Esters. II. Comparative Stability Studies of .DELTA.2 and .DELTA.3 Cephems at Various pHs and the Degradation Process of .DELTA.2 Cephem Esters.
Studies on the Stability of .DELTA.2 and .DELTA.3 Cephem Esters. II. Comparative Stability Studies of .DELTA.2 and .DELTA.3 Cephems at Various pHs and the Degradation Process of .DELTA.2 Cephem Esters.