abstract |
A compound of formula (I) or formula (Ia) n n n n n n n n n n Wherein R 1 , R a , R 2 , X, R 3 , Y 1 , Y 2 , 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. |