| 摘要 |
<p>Compounds of formula (3), and pharmaceutically acceptable salts and derivatives thereof, in which R1 is vinyl or ethyl; and R2 is a group R3, R4CH2-, or R5R6C=CH-; wherein each of R?3 and R4¿ is an azabicyclic ring system or R?5 and R6¿ together with the carbon atom to which they are attached form an azabicyclic ring system, are useful in the prevention and treatment of microbial infections.</p> |
