Aplysinopsin-type alkaloids fromDendrophyllia sp., a scleractinian coral of the family dendrophylliidae of the philippines, facile photochemical (Z/E) photoisomerization and thermal reversal
作者:Graziano Guella、Ines Mancini、Helmut Zibrowius、Francesco Pietra
DOI:10.1002/hlca.19890720703
日期:1989.11.1
The dendrophylliid Dendrophyllia sp. of Palawan contains the indole alkaloids 2′-demethylaplysinopsin (4) and 2′-demethyl-3′-N-methylaplysinopsin (6) and their 6-bromo analogues in H (Z/E) ratio larger than 95:5; these mixtures undergo facile photoisomerization to give mixtures richer in the (E) stereoisomer which undergo thermal isomerization to give back the original mixtures.
树突藻Dendrophyllia sp。巴拉望岛含有吲哚生物碱2'-脱甲基皂苷(4)和2'-脱甲基-3'- N-甲基皂苷(6)及其6-溴类似物的H(Z / E)比大于95:5;这些混合物容易进行光异构化,得到富含(E)立体异构体的混合物,然后进行热异构化,得到原来的混合物。