DeMarinis RM, Boehm JC, Dunn GL, Hoover JR, Uri JV, Guarini JR, et al. (January 1977). "Semisynthetic cephalosporins. Synthesis and structure-activity relationships of analogues with 7-acyl groups derived from 2-(cyanomethylthio)acetic acid or 2-[(2,2,2-trifluoroethyl)thio]acetic acid and their sulfoxides and sulfones". Journal of Medicinal Chemistry. 20 (1): 30–5. doi:10.1021/jm00211a006. PMID319233.
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pubmed.ncbi.nlm.nih.gov
DeMarinis RM, Boehm JC, Dunn GL, Hoover JR, Uri JV, Guarini JR, et al. (January 1977). "Semisynthetic cephalosporins. Synthesis and structure-activity relationships of analogues with 7-acyl groups derived from 2-(cyanomethylthio)acetic acid or 2-[(2,2,2-trifluoroethyl)thio]acetic acid and their sulfoxides and sulfones". Journal of Medicinal Chemistry. 20 (1): 30–5. doi:10.1021/jm00211a006. PMID319233.
