Synthesis of Actinomycetes natural products JBIR-94, JBIR-125, and related analogues
作者:Rafiq Taj、John L. Sorensen
DOI:10.1016/j.tetlet.2015.11.020
日期:2015.12
The synthesis of the natural products JBIR-94, DCP, DFP, and CFP is reported. A strategy for the coupling of ferulic or coumaric acid to putrescine is described. We determined that EDCI was the most effective coupling agent for this synthesis. In addition amide coupling with saturated cinnamic acids derivatives provided the best yield. The synthesis of JBIR-125 is accomplished through a novel synthesis of differentially protected spermidine. Preliminary bioassay data demonstrated that all five compounds were active against Pseudomonas aeruginosa. (C) 2015 Elsevier Ltd. All rights reserved.
Inhibitory Activity of Corn-Derived Bisamide Compounds against α-Glucosidase
作者:Toshio Niwa、Umeyuki Doi、Toshihiko Osawa
DOI:10.1021/jf020758x
日期:2003.1.1
Bioassay guided fractionation from corn gluten meal, a byproduct of a starch manufacturing plant, gave N-p-coumaroyl-N'-feruloylputrescine (1) and N,N'-diferuloylputrescine (2) as alpha-glucosidase inhibitors. Some structure-activityrelationships were studied by comparing the inhibitory activity by preparing some related compounds, and it was revealed that the hydroxyl group was important for the