Optically active cantharidin analogues possessing selective inhibitory activity on Ser/Thr protein phosphatase 2B (calcineurin): Implications for the binding mode
作者:Yoshiyasu Baba、Nozomu Hirukawa、Mikiko Sodeoka
DOI:10.1016/j.bmc.2005.05.013
日期:2005.9
serine/threonine protein phosphatase 1 and 2A (PP1 and PP2A) inhibitor, with less potent inhibitory activity for PP2B, which regulates T-cell proliferation. We synthesized and evaluated four optically pure stereoisomers of 1-substituted norcantharidin analogues. The absolute stereochemistry of each stereoisomer was determined based on X-ray crystal structure analysis. Remarkably, optically active cantharidin
Cantharidin众所周知是一种有效的丝氨酸/苏氨酸蛋白磷酸酶1和2A(PP1和PP2A)抑制剂,对PP2B的抑制作用较弱,后者可调节T细胞增殖。我们合成并评估了1个取代的胭脂红素类似物的四种光学纯立体异构体。基于X射线晶体结构分析确定每种立体异构体的绝对立体化学。显着地,具有(1S)-构型的旋光邻苯二酚类似物显示出对PP2B的选择性抑制,而不抑制PP1或PP2A。