87118-93-2Relevant academic research and scientific papers
UREIDO AND THIOUREIDO DERIVATIVES OF &β-LACTAM ANTIBIOTICS
Petrulyanis, L. N.,Veinberg, G. A.,Kononov, L. I.,Dipan, I. V.,Lukevits, E. Ya.
, p. 630 - 634 (2007/10/02)
6-Ureido and 6-thioureidopenicillanic acids and 7-ureido- and 7-thioureidodeacetoxycephalosporanic acids were obtained by the reaction of 6-aminopenicillanic acid and 7-aminodeacetoxycephalosporanic acids with tetraisocyanatosilane or tetraisothiocyanatosilane.N-Carbamoyl derivatives of ureido- and thioureidopenicillanic acids were isolated after repeated treatment of 6-ureido- and 6-thioureidopenicillanic acids with the indicated isocyanatosilanes.
