Publication at Faculty of Science |
2023
Abstract
A series of benzofuro-fused 7-deazapurine (6H-furo[2,3-e]pyrimido[4,5-b]indole) 2'-deoxyribo- and ribonucleosides was designed and synthesized. The synthesis of key compound 10-chloro-6H-furo[2,3-e]pyrimido[4,5-b]indole was based on the Negishi cross-coupling of iodobenzofurane with zincated 4,6-dichloropyrimidine followed by azidation and photochemical cyclization.
Glycosylation of the heterocycle with either Hoffer's chlorodeoxyribose or protected ribose followed by cross-coupling or substitution reactions at position 10 gave the desired two sets of final nucleosides that showed moderate to weak cytostatic activity and interesting fluorescence properties.