Isolation and Structures of Dicyanide Derivatives, Epurpurins A to C, from Emericella purpurea.
作者:Hideyuki TAKAHASHI、Koohei NOZAWA、Ken-ichi KAWAI
DOI:10.1248/cpb.44.2227
日期:——
Three new yellow pigments, designated epurpurins A-C (1-3), were isolated along with variecolin and emindole PA from the dichloromethane extract of rice fermented with Emericella purpurea. Compounds of 1-3 were established as 2, 3-dicyano-1, 4-di(4-hydroxyphenyl)-1, 3-butadiene derivatives by spectroscopic and chemical investigation and X-ray analysis of the dimethyl ether of epurpurin C (4).
从紫花酢浆草发酵大米的二氯甲烷提取物中分离出了三种新的黄色色素,命名为表酢浆草素 A-C(1-3),以及变异素和大吲哚 PA。通过光谱和化学研究以及对表嘌呤 C 的二甲醚(4)的 X 射线分析,确定 1-3 中的化合物为 2,3-二氰基-1,4-二(4-羟基苯基)-1,3-丁二烯衍生物。