| 摘要 |
Compounds represented by the formula <IMAGE> wherein R is <IMAGE> R1 is 2-pyridyl, 3-pyridyl, 4-pyridyl or 2-thiazyl, R2 is lower alkyl and n is 1 or 2, AND ACID ADDITION SALTS OF THE COMPOUNDS WHEREIN R1 is 2-pyridyl, 3-pyridyl or 4-pyridyl are disclosed as useful as anthelmintics against a broad spectrum of helminths. Processes for making the active compounds and novel intermediates useful therein are also disclosed. |
