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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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