| 摘要 |
This invention relates to compounds of formulas 1 and 2 and to pharmaceutically acceptable salts and solvates thereof, wherein X, X1 , R1, R2, R7, R17 and R19 are as defined herein. The compounds of formulas 1 and 2 may be useful in the treatment of bacterial, parasitic and protozoal infections, as well as disorders related to bacterial, parasitic and protozoal infections, in mammals, fish and birds. T he invention also relates to pharmaceutical compositions containing the compounds of formula 1 and 2 and to methods of treating bacterial, parasitic and protozoal infections by administering the compounds of formula 1 and 2.
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