摘要 |
The present invention relates to 11,12 gamma lactone ketolides of formula (I) wherein R, R<SUP>1</SUP>, R<SUP>2</SUP>, R<SUP>3 </SUP>are as defined herein and pharmaceutically acceptable salts and solvates thereof, to process for their preparation and their use in therapy or prophylaxis of systemic or topical bacterial infections in a human or animal body. |