Semisynthetic .Beta.-lactam antibiotics. I Synthesis and antibacterial activity of 7.Beta.-(2-aryl-2-(aminoacetamido)acetamido)cephalosporins Furukawa, M.; Arimoto, M.; Nakamura, S.; Ejima, A.; Higashi, Y.; Tagawa, H. The Journal of Antibiotics 39(9): 1225-1235 1986 10.7164/antibiotics.39.1225 https://eurekamag.com/research/068/516/068516205.php