Synthesis, structure and stereochemistry of quinoline alkaloids from Choisya ternata
作者:Derek R. Boyd、Narain D. Sharma、Pui L. Loke、John F. Malone、W. Colin McRoberts、John T. G. Hamilton
DOI:10.1039/b707576f
日期:——
values of all chiral quinoline alkaloids have been determined. One of the isolated alkaloids, 7-isopentenyloxy-gamma-fagarine, has been used as a precursor for the chemical asymmetric synthesis of the enantiopure alkaloids: evoxine, anhydroevoxine and evodine. The possible roles of oxygenase and other oxygen-atom-transfer enzymes, in the biosynthetic pathways of the C. ternata alkaloids, have been discussed
从Choisya ternata的叶子中分离出了十七种喹啉生物碱,这些生物碱在其生物合成途径中涉及多种类型的氧化。除了九种已知的喹啉生物碱外,还鉴定了八种呋喃喹啉家族的新成员,这些成员主要来自C-5的异戊烯酸酯化(包括两种新型氢过氧化物)。已确定所有手性喹啉生物碱的绝对构型和对映体纯度值。分离的生物碱之一,即7-异戊烯氧基-γ-fagarine,已被用作对映纯生物碱的化学不对称合成的前体:evoxine,hydrohydrooxoxine和evodine。已经讨论了加氧酶和其他氧原子转移酶在C. ternata生物碱生物合成途径中的可能作用。