摘要:
A new process for the synthesis of amide derivatives of 8-hydroxypenicillanic acid is described, more specifically starting from amide derivatives of the 6-aminopenicillanic nucleus protected as tert-butylcarbamate.
摘要:
A compound of formula (I) or formula (Ia) Wherein R1, Ra, R2, X, R3, Y1, Y2, A, B and C are as defined herein. Also, pharmaceutical compositions comprising such compounds and excipients, methods of treating bacterial infections comprising administering such compounds, methods for making such compounds and hydrates of such compounds.