2,3-Aziridino-2,3-dideoxy-<scp>d</scp>-ribono-γ-lactone 5-Phosphonate: Stereocontrolled Synthesis from <scp>d</scp>-Lyxose and Unusual Aziridine Ring Opening
作者:Philippe Dauban、Robert H. Dodd
DOI:10.1021/jo9623494
日期:1997.6.1
(23), a new member of the 2,3-aziridino gamma-lactone family of compounds, was achieved in 15 steps from D-lyxose. Like all aziridino gamma-lactones known so far, 23 reacted with a soft nucleophile (ethanethiol) to give exclusively the product of aziridine ring opening at C-2 (24). On the other hand, hard nucleophiles (alcohols) did not react directly with the aziridine ring of 23 but appeared to promote
(1R,4S,5S)-N-(苄氧羰基)-4-[(二乙氧膦基)甲基] -3-氧杂-6-氮杂双环[3.1.0]己-2--2-的合成(23) 2,3-叠氮基丙氨酸-内酯家族化合物的制备,是从D-lyxose分15步完成的。像迄今为止已知的所有叠氮基丙二酸内酯一样,23与软亲核试剂(乙硫醇)反应,仅得到在C-2处氮丙啶开环的产物(24)。另一方面,硬的亲核试剂(醇)不会直接与23的氮丙啶环反应,但似乎会促进C-5膦酸酯基团对C-3的氮丙啶环进行分子内攻击,导致水解后形成2-氨基-3-羟基-D-核糖基-1,4-内酯衍生物25和26,而不是预期的2-氨基-3-烷氧基-D-木酮-1,4-内酯衍生物。