ChemInform Abstract: Efficient and Convenient Pyridine Ring-E Formation of the Cytotoxic Marine Alkaloid Ascididemin and Related Analogues

Autor: Allison Pearce, Brent S. Lindsay, Brent R. Copp
Rok vydání: 2010
Předmět:
Zdroj: ChemInform. 28
ISSN: 0931-7597
DOI: 10.1002/chin.199742264
Popis: Conversion of tetracyclic quinone 1 to the cytotoxic pentacyclic alkaloid ascididemin (2) in 80% yield is achieved by reaction with paraformaldehyde and ammonium chloride in refluxing acetic acid. High yielding annelations are aiso observed for the related analogues N-8 deaza ascididemin (3) and kuanoniamine A (4).
Databáze: OpenAIRE