Nucleic acid related compounds. 31. Smooth and efficient palladium-copper catalyzed coupling of terminal alkynes with 5-iodouracil nucleosides
作者:Morris J. Robins、Philip J. Barr
DOI:10.1016/0040-4039(81)80115-3
日期:1981.1
Coupling of terminalalkynes with protected 5-iodouracilnucleosides in the presence of dichlorobis(triphenylphosphine)palladium and copper(I) iodide in triethylamine gives the corresponding 5-(alkyn-1-yl)uracil nucleosides in 72–92% yields.
Nucleic acid related compounds. 40. Synthesis and biological activities of 5-alkynyluracil nucleosides
作者:Erik De Clercq、Johan Descamps、Jan Balzarini、Jerzy Giziewicz、Philip J. Barr、Morris J. Robins
DOI:10.1021/jm00359a008
日期:1983.5
5-alkynyl-2'-deoxyuridine nucleosides. The 5-ethynyl, followed by 5-propynyl, products had the highest antiviral potency, with the 2'-deoxy derivatives being more effective than the arabinosyl compounds. Activity was weak at hexynyl and disappeared at heptynyl. Inclusion of an omega-hydroxy function diminished the antiviral effect. None of the 5-alkynyluracil nucleosides tested had sufficient selectivity