Prodigiosin is the parent member of the 4-methoxypyrrolyldipyrromethene family of natural products and is known for its anti-cancer activity. A new series of analogues was synthesized, incorporating pendent functional esters and beta-carbonyl substituents on the C-ring. The beta-carbonyl group allowed for the facile isolation of the prodigiosenes, and the pendent esters allow for further derivatization
Syntheses of protoporphyrin IX analogs bearing acetic and butyric side chains
作者:Kevin M. Smith、Fahimeh Eivazi、Zoya Martynenko
DOI:10.1021/jo00323a048
日期:1981.5
Synthesis of Symmetric meso-H-Dipyrrin Hydrobromides from 2-Formylpyrroles
作者:Alison Thompson、Kate-lyn Lund
DOI:10.1055/s-0033-1341066
日期:——
The reaction of 2-formylpyrroles in acidic methanol gives the corresponding symmetric, meso-H-4,6-dipyrrin hydrobromides. This convenient strategy involves initial deformylation under the acidic conditions, followed by immediate in situ reaction of the resulting alpha-free pyrrole with the remaining 2-formylpyrrole in solution to give the dipyrrin hydrobromide salt in good yield.