| 摘要 |
FIELD: chemistry.SUBSTANCE: invention relates to a compound of formula I or its pharmaceutically acceptable salts, where grouping Het denotes a pyridinyl or thiazolyl; each of Rand Rrepresents H; each Rand Rindependently denotes H, -Calkyl or Rand R, taken together, form Ccycloalkyl; W represents -H, -PO(OH)or -CHOPO(OH); each of X and Y denotes chlorine or each of X and Y denotes fluorine, and Z is H.EFFECT: compounds of formula I are used in method of controlling and treating infections in livestock, which involves administering animal with therapeutically effective amount of compound of formula I or its pharmaceutically acceptable salt.8 cl, 3 tbl, 161 ex |
