Abstract
Oxidation of the indolo[2,3-a]carbazole 15, readily obtained in six steps from indigo, followed by deprotection results in formation of the indolo[3,2-j]phenanthridine quinone alkaloid calothrixin B 2, demonstrating the viability of the proposed biosynthetic route to this unique ring system. (c) 2006 Elsevier Ltd. All rights reserved.
Original language | English |
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Pages (from-to) | 231-234 |
Number of pages | 4 |
Journal | Tetrahedron Letters |
Volume | 48 |
DOIs | |
Publication status | Published - 8 Jan 2007 |
Keywords
- ANTITUMOR AGENTS
- OXIDOREDUCTASE
- CYANOBACTERIA
- METABOLITES
- ROUTE