Journal
TETRAHEDRON LETTERS
Volume 50, Issue 7, Pages 752-754Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2008.10.066
Keywords
Indole alkaloids; NMR; Tabernaemontana; Apocynaceae
Categories
Funding
- University of Malaya and MOSTI, Malaysia
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A hexacyclic indole alkaloid possessing an unprecedented ring system incorporating a diazaspiro center and fused oxadiazepine-tetrahydrofuran rings has been isolated from the Malayan Tabernaemontana corymbosa. The structure was established by analysis of the spectroscopic data and a possible biogenetic pathway from a cleavamine-type precursor is presented. (C) 2008 Elsevier Ltd. All rights reserved.
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