Semisynthetic .Beta.-lactam antibiotics. Ii Synthesis and antibacterial activity of 7.Beta.-(2-(acylamino)-2-(2-aminothiazol-4-yl)acetamido)cephalosporins Arimoto, M.; Ejima, A.; Watanabe, T.; Tagawa, H.; Furukawa, M. The Journal of Antibiotics 39(9): 1236-1242 1986 10.7164/antibiotics.39.1236 https://eurekamag.com/research/068/516/068516206.php