Pyridinylpyrimidine derivatives of the formula
 and their salts are effective as plant disease protectants. Methods of preparing such compounds are described, as are plant disease protectants containing them.  
                            式中的
吡啶基
嘧啶衍
生物
 及其盐类是有效的植物病害保护剂。本文介绍了制备此类化合物的方法,以及含有此类化合物的植物病害保护剂。