Synthesis of 5-(2-Hydroxybenzoyl)-1,3-Disubstituted Uracils
作者:Artur Silva、Oualid Talhi、Diana Pinto
DOI:10.1055/s-0033-1338932
日期:——
A new synthesis of novel nucleoside analogues is reported. These 5-(2-hydroxybenzoyl)-1,3-disubstituted uracils have been prepared by the coupling of chromone-3-carboxylic acid with carbodiimides, leading to 3-chromone- N -acylureas, which underwent organocatalyzed N-cyclization and chromone ring opening. In the case of ditolylcarbodiimide, the corresponding uracil was obtained by a one-pot, uncatalyzed