H. Azami et al., SYNTHESIS AND ANTIBACTERIAL ACTIVITY OF FR21818, A NEW, POTENT 1-BETA-METHYLCARBAPENEM, Bioorganic & medicinal chemistry letters, 5(19), 1995, pp. 2199-2202
The synthesis, in vitro antibacterial activity, and stability to renal
dehydropeptidase I of FR21818, a new 1 beta-methyl carbapenem contain
ing a novel pyrazoliomethyl pyrrolidine side chain at C-2 is described
.