作者:L. A. Rodinovskaya、A. M. Shestopalov
DOI:10.1007/bf02494687
日期:2000.2
Substituted 4-hydroxy-1 H-thieno[2,3-b;4,5-b']dipyridin-2-ones were prepared by the reactions of 3-cyanopyridine-2(1 H)-thiones with alkyl 4-chloroacetoacetates and by intramolecular cyclization of alkyl 4-(2-pyridylthio)acetoacetates or alkyl 3-(3-aminothieno[2,3-b]pyridin-2-yl)-3-oxopropionates under the action of bases.