Locked Nucleosides Based on Oxabicyclo[3.2.1]octane and Oxabicyclo[2.2.1]heptane Skeletons
作者:Ramprasad Ghosh、Joy Krishna Maity、Basudeb Achari、Sukhendu B Mandal
DOI:10.1021/jo100194z
日期:2010.4.2
oxabicyclo[3.2.1]octane and oxabicyclo[2.2.1]heptane rings in three steps. An oxabicyclo[3.2.1]octane ring compound could alternatively be formed by RCM reaction between C-1−allyl and C-4−vinyl moieties and transformed to nucleoside analogues through a nucleophilic substitution reaction. Participation of a neighboring benzyl ether substituent in one case paved the way for an enantiodivergent synthesis.