Synthesis of AE and BE Ring Analogues of the Alkaloid Methyllycaconitine
作者:Holger Guthmann、Daniel Conole、Emma Wright、Karsten Körber、David Barker、Margaret A. Brimble
DOI:10.1002/ejoc.200900030
日期:——
The synthesis of AE and BE analogues of the alkaloid methyllycaconitine is reported. The analogues contain two key pharmacophores: a 2-(2-methylmaleimido)benzoate ester and a homocholine motif formed from a tertiary N-(3-phenylpropyl)amine incorporated into either a 3-azabicyclo[3.3.1]nonane (AE) or octahydroquinoline (BE) ring system. An additional aromatic group is introduced into the AE bicyclic
报道了生物碱甲基海乌碱的 AE 和 BE 类似物的合成。这些类似物包含两个关键的药效团:2-(2-甲基马来酰亚胺)苯甲酸酯和由叔 N-(3-苯丙基)胺结合到 3-氮杂双环 [3.3.1] 壬烷 (AE) 或八氢喹啉(BE)环系。使用 Horner-Wadsworth-Emmons 反应将额外的芳族基团引入 AE 双环系统。BE 类似物是通过使用 α-(溴甲基)丙烯酸乙酯、伯胺和环己酮的一锅环化反应合成的,从而有效组装了八氢喹啉环系统,该系统模拟了甲基甘乌碱的 BE 环。在 AE 和 BE 类似物中,
Enantioselective synthesis of BE ring analogues of methyllycaconitine
作者:Emma Dickson、Lisa I. Pilkington、Margaret A. Brimble、David Barker
DOI:10.1016/j.tet.2015.11.057
日期:2016.1
enantioselective synthesis of decahydroquinolines mimicking the BE rings of methyllycaconitine (MLA) is reported. The analogues were synthesised via a one-pot cyclisation using ethyl α-(bromomethyl)acrylate, (R)-1-phenylethanamine and cyclohexanone to form chiral octahydroquinolines which can be selectively hydrogenated to form the 3-substituted-decahydroquinolines with the same stereochemistry found in