Synthesis of (−)-11-<i>O</i>-Debenzoyltashironin: Neurotrophic Sesquiterpenes Cause Hyperexcitation
作者:Masaki Ohtawa、Michael J. Krambis、Rok Cerne、Jeffrey M. Schkeryantz、Jeffrey M. Witkin、Ryan A. Shenvi
DOI:10.1021/jacs.7b04206
日期:2017.7.19
neurotrophic sesquiterpenes, trace plant metabolites that enhance neurite outgrowth in cultured neurons. We report its synthesis in six steps from a butenolide heterodimer via its likely biosynthetic precursor, 3,6-dideoxy-10-hydroxypseudoanisatin, here identified as the chain tautomer of 1. Access to the tashironin chemotype fills a gap in a comparison set of convulsive and neurotrophic sesquiterpenes, which
11- O- Debenzoyltashironin(1)是神经营养倍半萜的成员,是一种痕量植物代谢产物,可增强神经元在神经元中的生长。我们报告了从丁烯内酯异二聚体通过其可能的生物合成前体3,6-dideoxy-10-hydroxypseudoanisatin,这里确定为1的链互变异构体的六个步骤的合成。使用tashironin的化学型填补了惊厥性和神经营养性倍半萜的比较中的空白,我们假设它们具有相同的靶标。在这里,我们显示这两个类别相互过度兴奋大鼠皮质神经元,与抑制性通道的拮抗作用和去极化诱导的神经突增生的机制相一致。