Synthesis of (3′R,5′S)-3′-hydroxycotinine using 1,3-dipolar cycloaddition of a nitrone
作者:Osamu Tamura、Ayano Kanoh、Masayuki Yamashita、Hiroyuki Ishibashi
DOI:10.1016/j.tet.2004.08.023
日期:2004.10
To synthesize (3′R,5′S)-3′-hydroxycotinine [(+)-1], the main metabolite of nicotine (2), cycloaddition of C-(3-pyridyl)nitrones 3a, 3c, and 15 with (2R)- and (2S)-N-(acryloyl)bornane-10,2-sultam [(2R)- and (2S)-8] was examined. Among them, l-gulose-derived nitrone 15 underwent stereoselective cycloaddition with (2S)-8 to afford cycloadduct 16, which was elaborated to (+)-1.
合成(3' - [R,5'小号)-3'- hydroxycotinine [(+) - 1 ],烟碱(主要代谢物2)的,环加成Ç - (3-吡啶基)硝酮3A,3C,和15与研究了(2 R)-和(2 S)-N-(丙烯酰基)冰片烷-10,2-sultam [(2 R)-和(2 S)-8 ]。其中,对源自l-葡萄糖的硝酮15与(2 S)-8进行立体选择性环加成反应,制得环加合物16,将其精制为(+)-1。