作者:Carmen E. Díaz、Braulio M. Fraga、Adriana G. Portero、Iván Brito、Carmen López-Balboa、Liliana Ruiz-Vásquez、Azucena González-Coloma
DOI:10.3390/molecules28030975
日期:——
3-ethoxy-hydroxy-tremetone (4) being the strongest antifeedant. Glucosylation of 1 by its biotransformation with Mucor plumbeus gave inactive products. Among the euparin series, the dihydroxyangelate 14 was the most active, followed by euparin (6). The eupachinin-type compounds (11, 12) were both antifeedants. Compounds 4, 11, and 12 showed antifeedant effects without postingestive toxicity to orally dosed
在这项工作中,我们研究了 Pericallis echinata(地上部分和转化根)、P. steetzii(地上部分和转化根)、P. lanata(地上部分)和 P. murrayi(地上部分和根)的苯并呋喃。这项工作允许分离新的苯并呋喃 10-ethoxy-11-hydroxy-10,11-dihydroeuparin (10), (-)-eupachin A ethyl ether (12), 11,15-didehydro-eupachin A (13) , 10,12-dihydroxy-11-angelyloxy-10,11-dihydroeuparin (14), 2,4-dihydroxy-5-formyl-acetophenone (15) 首次作为天然产物分离, 11-angelyloxy-10, 11-dihydroeuparin (16) 和 12-angelyloxyeuparone