分类号 |
C07C237/22;C07C255/19;C07C271/22;C07C275/28;C07C275/42;C07C275/54;C07C311/06;C07C311/21;C07C317/50;C07C323/60;C07D209/42;C07D213/55;C07D213/75;C07D215/48;C07D277/48;C07D317/60;C07D405/12;(IPC1-7):C07C237/22;C07C323/52;A61K31/16;A61K31/27;A61K31/36;A61K31/17 |
主分类号 |
C07C237/22 |