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               ·700 ·                            南 京    医 科 大 学 学         报                        2023年5月


                              A                                                    水杨酸结构
                                                    COOH                               COOH
                                     OH                                 OH
                                CI                                 CI
                                           N        OH                        N        OH
                                           H                                  H
                                                                             连接臂
                                     CI                                 CI
                                        ZL006(1)                      新脂端
                     B                                            水杨酸结构
                                                                               水杨酸结构:
                                                                               水杨酸结构的羟基和羧基颠倒
                                                                     COOH
                                        新脂端          OH                        后活性显著下降;
                                                                               水杨酸结构的羧基进行酯化、酰
                                                CI
                                                            N        OH        胺化以及环化都使活性下降;
                                                            H                  水杨酸结构的羧基替换为磺酸
                                                           连接臂                 取代基时时,活性提升
                       新脂端:
                       C⁃2 位的羟基和 C⁃5 位氯原子是活          CI   连接臂:
                       性必需基团,移除或替换活性显著                    C 上引入甲基活性保持,引入体积
                       下降;                                过大的基团活性显著下降;
                       C⁃3位为卤素取代时活性保持,卤素                  N上引入甲基使得氨基封闭后活性
                       移除或替换时,活性显著下降                      也显著降低
                                      图9   ZL006衍生物的设计(A)及ZL006衍生物的构效关系(B)
                       Figure 9 The design of ZL006 derivates(A)andStructure activity relationship of ZL006 derivates(B)


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