Title of article
Alsmaphorazines C–E, indole alkaloids from Alstonia pneumatophora
Author/Authors
Koichiro Koyama، نويسنده , , Yusuke Hirasawa، نويسنده , , Alfarius E. Nugroho، نويسنده , , Toshio Kaneda، نويسنده , , Teh Chin Hoe، نويسنده , , Kit-Lam Chan، نويسنده , , Hiroshi Morita، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2012
Pages
5
From page
1502
To page
1506
Abstract
Three novel indole alkaloids, alsmaphorazines C (1)–E (3), were isolated from the leaves of Alstonia pneumatophora (Apocynaceae) and their structures were determined on the basis of the 2D NMR and MS spectral analyses. The absolute configurations of 1 and 3 were elucidated by applying a modified Mosher’s method and CD spectral analysis. These alkaloids possessed novel ring skeletons containing an octahydropyrrolo[2,3-b]pyrrole unit.
Keywords
Indole alkaloids , Alstonia pneumatophora , Alsmaphorazines C–E , Modified Mosher’s method
Journal title
Tetrahedron
Serial Year
2012
Journal title
Tetrahedron
Record number
1104191
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