Biomimetic synthesis of neodihydrothebaine and bractazonine from thebaine
作者:Hubert G. Theuns、Guus F. La Vos、Michael C. ten Noever de Brauw、Cornelis A. Salemink
DOI:10.1016/s0040-4039(01)90210-2
日期:1984.1
Photochemical irradiation of the morphinan alkaloid thebaine 1 followed by reduction, affords the dibenz[d,f]azonine alkaloids neodihydrothebaine 2 and bractazonine 3, in a sequence paralleling the proposed biosynthesis of these alkaloids in Papaver bracteatum.
Neodihydrothebaine and bractazonine, two dibenz[d,f]azonine alkaloids of Papaver bracteatum
作者:Hubert G. Theuns、Herman B.M. Lenting、Cornelis A. Salemink、Hitoshi Tanaka、Masayoshi Shibata、Kazuo Ito、Robert J.J.Ch. Lousberg
DOI:10.1016/s0031-9422(00)82630-8
日期:1984.1
Two newdibenz[d,f]azoninealkaloids, neodihydrothebaine and bractazonine were isolated from Papaver bracteatum. Their possible biosynthesis from thebaine is discussed. The structures of both newalkaloids are proven by synthesis. An isomeric dibenz[d,f]azonine compound was also prepared.