Resolution of the Confusion in the Assignments of Configuration for the Ciliatamides, Acylated Dipeptides from Marine Sponges
作者:Kentaro Takada、Raku Irie、Rei Suo、Shigeki Matsunaga
DOI:10.1021/acs.jnatprod.7b00684
日期:2017.10.27
revealed that ciliatamide A possesses the 12R (d-N-MePhe residue) and 22S (l-Lys residue) configurations, which were not identical with either our previous assignment or those proposed by others through total synthesis. The absolute configuration of the methionine sulfoxide residue in ciliatamide D was also revised to be d.
具有四个合成的异构体(正品ciliatamide A的直接比较1 - 4)通过NMR和手性相HPLC方法揭示ciliatamide A具有12 [R (d - ñ -MePhe残基)和22小号(升-Lys残基)的配置,这与我们之前的作业或其他人通过全面综合提出的作业都不相同。纤毛胺D中蛋氨酸亚砜残基的绝对构型也被修改为d。