Sugar-Modified Uridine Bisvinyl Sulfone: Synthesis of a Bifunctionalized Nucleoside Michael Acceptor and Its Use in Stereoselective Tandem Cyclization
作者:Sanjib Bera、Graham J. Langley、Tanmaya Pathak
DOI:10.1021/jo9705576
日期:1998.3.1
A bisvinyl sulfone functionality is incorporated into the carbohydrate moiety of uridine to synthesize 6 (or 7) which is a bifunctionalized nucleoside Michael acceptor and has the potential to form covalent bond with biological nucleophiles. This compound could be used to generate a large number and a new class of bicyclic S,S-dioxidethiazine derivatives 8-12 in stereoselective fashion. Compound 6 is also useful for the synthesis of a wide variety of monosubstituted compounds 13-15. The structures of compounds 8-12 have been established unambiguously by synthesising the core structure 28 in a stereospecific fashion.