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Formation of an Unusual Dimeric Compound by Lead Tetraacetate Oxidation of a Corynanthe-Type Indole Alkaloid, Mitragynine
2002 年 50 巻 7 号 p. 960-963
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2002 年 50 巻 7 号 p. 960-963
Lead tetraacetate oxidation of a Corynanthe-type indole alkaloid, mitragynine, produced mainly 7-acetoxyindolenine derivative (2) together with a dimeric compound (4) as a minor product. The novel structure having a bridge between the C-11′ and C-7 positions in the respective indolenine parts and its formation mechanism were studied.
