Two unusual isoflavonoids from Campylotropis hirtella – A new biosynthesis route of flavonoids
2017
Ma, Jiahui | Zhang, Jinghua | Shen, Zhengwu
Two unusual isoflavonoids were isolated from Campylotropis hirtella. Compound 1 is the first isoflavane-coumaronochromone discovered and contains a dimer with a unique propeller-like 3D structure. Compound 2 is an isoflavonoid with an unusual saturated B-ring. The relative configuration of compound 2 was determined by single crystal X-ray diffraction. We propose the biosynthetic pathway of compound 2 and hypothesize that this pathway may exist in parallel with the well-established phenylpropanoid pathway.
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