Synthesis of ajmalicine derivatives using Wittig-Horner and Knoevenagel reactions
作者:Ahcène Boumendjel、Jean-Marc Nuzillard、Georges Massiot
DOI:10.1016/s0040-4039(99)01921-8
日期:1999.12
2-(2,3,4,9-Tetrahydro-1H-β-carbolin-1-yl)acetaldehyde, synthesized from tryptamine in five steps, is easily homologated by Wittig-Horner or Knoevenagel reactions to substituted acrylates. These highly reactive compounds are key intermediates in the synthesis of analogs of the natural indol alkaloid ajmalicine.
用五步步骤从色胺中合成的2-(2,3,4,9-四氢-1 H -β-咔啉-1-基)乙醛很容易通过Wittig-Horner或Knoevenagel反应同化为取代的丙烯酸酯。这些高反应性化合物是天然吲哚生物碱阿兹玛林类似物合成中的关键中间体。