| 分类号 |
C07D251/16;A01N41/06;A01N47/36;A01P13/00;C07C67/00;C07C301/00;C07C311/00;C07C311/29;C07C313/00;C07C317/14;C07C317/18;C07C317/22;C07C317/44;C07C323/12;C07C323/67;C07D239/42;C07D239/46;C07D239/47;C07D239/52;C07D239/56;C07D251/22;C07D251/42;C07D251/44;C07D251/46;C07D521/00 |
主分类号 |
C07D251/16 |
