论文部分内容阅读
Some nucleoside carhoxylic acid derivatives,such as(±)ethyl ester of griseolic acid(4)and 9-(2’-deoxy-2’-(benzyloxycarbonyl)-methylene-β-D-rihohept-2’-enofuranosyluranate)adenine(11),were synthesized.The formation of lactone of 5’-deoxy-adenosineacet