Total syntheses of (±)-cis- and trans-11
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Kalle Rönkkö; Mathias Berner; Reija Jokela; Arto Tolvanen
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Article
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2000
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Journal of Heterocyclic Chemistry
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English
⚖ 302 KB
## Abstract The total syntheses of 11‐methoxydeethyleburnamonines (**4**) and (**13**) were carried out with use of 6‐methoxytryptophyl bromide (**5**) as starting material. Compound **5** was converted in three steps to __trans__‐ester **8**. Acid‐catalysed epimerization of **8**, lithium aluminum