摘要:
3,6-Di-O-methanesulfonyl-2,5-anhydro-L-idofuranose dimethyl acetal 9 was reacted with NaN3 in DMF to give 6-azido substituted carbohydrate 10 selectively. A series of 6-amino-isonucleosides 4a-d were synthesized by the reaction of nucleobases with epoxide 13, followed by hydrolysis, reduction, and deprotection, in good yield. (c) 2007 Elsevier Ltd. All rights reserved.