Synthesis of 9-(2,3-Dideoxy-2-fluoro-β-<scp>d</scp>-<i>t</i><i>hreo</i>-pentofuranosyl)adenine (FddA) via a Purine 3‘-Deoxynucleoside
作者:Satoshi Takamatsu、Tokumi Maruyama、Satoshi Katayama、Naoko Hirose、Masaki Naito、Kunisuke Izawa
DOI:10.1021/jo0158985
日期:2001.11.1
A synthesis of 9-(2,3-dideoxy-2-fluoro-beta-D-threo-pentofuranosyl)adenine (1, FddA) via a 6-chloro-9-(3-deoxy-beta-D-erythro-pentofuranosyl)-9H-purine (9), which was readily obtained from inosine (5), is described. Fluorination at the C2'-beta position of the purine 3'-deoxynucleoside with diethylaminosulfur trifluoride was improved by the introduction of a 6-chloro group and proceeded in moderate
经由6-氯-9-(3-脱氧-β-D-赤型-五氟呋喃糖基)合成9-(2,3-二脱氧-2-氟-β-D-苏-五呋喃糖基)腺嘌呤(1,FddA)描述了易于从肌苷(5)获得的)-9H-嘌呤(9)。通过引入6-氯基团可以改善嘌呤3'-脱氧核苷的C2'-β位置与三乙二氨基氨基硫的氟化作用,并且产率中等。嘌呤3'-脱氧核苷衍生物也与三乙胺三氟化氢进行亲核反应,并以良好的收率得到所需的氟化核苷。通过使用三乙胺三氟化氢大大提高了氟化工艺的安全性和产率。