A new phenylethyl alkyl amide from the <i>Ambrostoma quadriimpressum</i> Motschulsky
作者:Guolei Zhao、Chao Yang、Bing Li、Wujiong Xia
DOI:10.3762/bjoc.7.158
日期:——
isolated from the beetle Ambrostoma quadriimpressum Motschulsky. The structure of the amide was determined by NMR and MS. The absolute configuration of compound 1 was confirmed by an asymmetric total synthesis, which was started from L-glutamic acid. The construction of the aliphatic chain was accomplished by the selective protection of the hydroxy groups and two-time implementation of the Wittig olefination
从甲虫 Ambrostoma quadriimpressum Motschulsky 中分离出一种新的苯乙基烷基酰胺 (10R)-10-羟基-N-苯乙基十八酰胺 (1)。酰胺的结构由NMR和MS确定。化合物 1 的绝对构型通过不对称全合成得到证实,该合成从 L-谷氨酸开始。脂肪链的构建是通过羟基的选择性保护和 Wittig 烯化反应的两次实施来完成的。