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Updated: May 26, 2026
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Cercosporin-Photocatalyzed [4+1]- and [4+2]-Annulations of Azoalkenes Under Mild Conditions
Published on: July 17, 2020
Obscurine: a new cyclostachine acid derivative from Beilschmiedia obscura
Bruno Ndjakou Lenta1, Jean Rodolphe Chouna, Pepin Alango Nkeng-Efouet
1Department of Chemistry, Higher Teachers' Training College, University of Yaoundé 1, P.O. Box 47, Yaoundé, Cameroon.
Abstract:
From the methylene chloride extract of the stem bark of Beilschmiedia obscura, a new cyclostachine derivative, obscurine (1), has been isolated, together with six known compounds. The structure of compound 1 was established by spectroscopic methods, including 1- and 2-dimensional NMR techniques.
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