分类号 |
C07C67/00;C07C301/00;C07C303/38;C07C309/51;C07C309/61;C07C311/29;C07D251/22;C07D251/44;C07D251/46;C07D251/50;C07D251/52;C07D251/70;C07D253/06;C07F9/38;C07F9/40;C09K3/10;C23C8/18;C25D11/18;C25D11/24;(IPC1-7):C07D251/50;C07D251/54;C23F11/16;C07C143/675;C07C143/78 |
主分类号 |
C07C67/00 |