Isolation and synthesis of two hydroxychavicol heterodimers from Piper nudibaccatum
作者:Hong-Xin Liu、Hai-Bo Tan、Meng-Ting He、Ling Li、Yue-Hu Wang、Chun-Lin Long
DOI:10.1016/j.tet.2015.03.005
日期:2015.4
comprising phenylpropanoid and monoterpene constituent units, named nudibaccatumins A (1) and B (2), were isolated as an inseparable mixture from the aerial parts of Piper nudibaccatum. Their absolute configurations were confirmed by total synthesis using ortho-alkylation of hydroxychavicol with myrtenyl bromide as the key reaction. The two new compounds (1 and 2) and their synthetic analogues (3–8) were evaluated
从Piper nudibaccatum的地上部分分离出了两种含苯基丙烷和单萜组成单元的羟丁香异聚体nudebaccatumins A(1)和B(2)作为密不可分的混合物。它们的绝对构型是通过使用羟基烯丙基溴的邻位烷基化为主要反应的羟基沙夫菌的正烷基化来证实的。这两个新的化合物(1和2)和它们的合成类似物(3 - 8)为XO抑制活性进行评价。