A novel synthesis of (+/-)-monomorine I (1) and (+/-)-indolizidine 195B (2) is described in which the key step is the highly efficient aza-[2,3]-Wittig rearrangement of vinylaziridine 12 into tetrahydropyridine 13. Functional group manipulation then gave ketone 16 which could be converted into the target alkaloids by reductive amination (1:2 1.5:1).
描述了(+/-)-monomorine I(1)和(+/-)-
吲哚唑烷195B(2)的新型合成方法,其中关键步骤是
乙烯基氮丙啶的高效氮杂-[2,3] -Wittig重排12经官能团转化为四氢
吡啶13。然后进行官能团处理,得到酮16,可以通过还原胺化(1:2 1.5:1)将其转化为目标
生物碱。