Stereoselective Introduction of Fluorine Atom: Synthesis of Racemic Carbocyclic Analogues of 3′-Deoxy-3′-fluororibofuranosides and 3′-Deoxy-3′-fluoroarabinofuranosides
作者:Yoshitomi Morizawa、Toshiaki Nakayama、Yasushi Matsumura、Keiichi Uchida、Arata Yasuda
DOI:10.1246/bcsj.66.2714
日期:1993.9
New carbocyclic analogues of nucleoside analogues substituted at the 3′-position with fluorine atom have been synthesized. Racemic carbocyclic 3′-deoxy-3′-fluoroarabinofuranoside analogue (3) has been prepared in several steps beginning with the regio- and stereoselective ring opening of (1α,2α,3α,4α)-4-acetamido-2,3-epoxycyclopentylmethylacetate (1). On the other hand, the corresponding carbocyclic
已经合成了在 3' 位被氟原子取代的核苷类似物的新碳环类似物。外消旋碳环 3'-deoxy-3'-fluoroarabinofuranoside 类似物 (3) 已通过几个步骤制备,从 (1α,2α,3α,4α)-4-acetamido-2,3-epoxycyclopentylmethylacetate 的区域和立体选择性开环开始(1). 另一方面,通过用三氟化哌啶硫基 SN2 取代 3'-位的甲硅烷氧基,然后去除苄基保护基团,获得了相应的氟代呋喃核糖衍生物 (14) 的碳环类似物。获得的糖部分3和14分别转化为核苷衍生物。