An efficient and stereospecific synthesis of novel pyrazine cnucleosides
作者:Jiong J. Chen、John A. Walker、Weimin Liu、Dean S. Wise、Leroy B. Townsend
DOI:10.1016/0040-4039(95)01826-4
日期:1995.11
A novel 2′deoxyβDribofuranosyl pyrazineCnucleoside (6) was synthesized via a Stereospecific palladium(0)mediated crosscoupling reaction. The βconfiguration of this nucleoside was established by NOE analysis and the formation of a 5,5′anhydro nucleoside 5. The compound 4a, obtained via the crosscoupling reaction and selective deprotection, is a versatile intermediate for the preparation of other pyrazine