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Cyclomegistine, the first alkaloid with the new cyclobuta[b]quinoline ring system from Sarcomelicope megistophylla

✍ Scribed by Nikolas Fokialakis; Prokopios Magiatis; Aris Terzis; François Tillequin; Alexios-Leandros Skaltsounis

Book ID
104231051
Publisher
Elsevier Science
Year
2001
Tongue
French
Weight
101 KB
Volume
42
Category
Article
ISSN
0040-4039

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✦ Synopsis

A new quinolone, cyclomegistine, was isolated from the bark of Sarcomelicope megistophylla. This alkaloid possesses the cyclobuta[b]quinoline ring system that has not been previously described either from natural or from synthetic origin. Biogenetically, cyclomegistine could arise from the oxidative aromatic ring cleavage of an acridone precursor, followed by photoisomerization of the resulting butadiene into the isomeric cyclobutene.

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