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Chemical constituents of Brazilian Propolis from the state of Bahia and their growth inhibitory activities against cancer cells

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posted on 2018-01-26, 08:50 authored by Taichi Mitsui, Sho Hotta, Shigemi Tazawa, Yasuko Arai, Kenji Kato, Kenji Ichihara

A novel 2-phenoxychromone (1) and five known flavones (2-6) were isolated from northeastern Brazilian propolis in the state of Bahia. The chemical structures of these six compounds were determined by spectroscopic investigations and single-crystal X-ray analysis. The isolated compounds showed growth-inhibitory activities, in varying degrees, against human tumor cell lines. This is the first report on the discovery of a novel 2-phenoxychromone from propolis.

A novel 2-phenoxychromone (1) and five known flavones (2–6) were isolated from Brazilian propolis in the state of Bahia.

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