75638-72-1Relevant academic research and scientific papers
Enantioselective synthesis of strobamine and its analogues
Zhang, Xing,Abraham, Philip,Mascarell, S. Wayne,Flippen-Anderson, Judith,Deschamps, Jeffrey R.,Carrolla, F.Ivy
, p. 96 - 103 (2012/10/30)
(2S,5S,8R)-Strobamine (+)-1a was synthesized by adding cinnamoyl cyanide 6a to tropinone 3 lithium enolate generated by treatment of (S,S')-a,a- dimethyldibenzylamide with butyl lithium in the presence of lithium chloride to give (-)-chalcostrobamine (-)-7a, which yielded a one-to-one mixture of (+)-1a and its C-2 epimer (-)-2a on treatment with 2N sulfuric acid. Compounds (+)-1a and (-)-2a could be separated by column chromatography. (-)-Strobamine (-)-1a and (+)-2a were synthesized by a similar set of reactions using the tropinone 3 lithium enolate generated with butyl lithium in the presence of (R,R')-a,a'-dimethyldibenzylamide and lithium chloride. (+)-and (-)-p-Methylstrobamine (+)-and (-)-1b and (+)-and (-)-epi-p-methylstrobamine (+)-and (-)-2b were synthesized by a similar procedure. The absolute configuration of (+)-epi-pmethylstrobamine (+)-2b was determined by X-ray analysis to have the (2S,5R,8S) configuration. ARKAT USA, Inc.
