抗菌性 3,3′-diindolylmethane のキセノンランプによる光分解

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タイトル別名
  • Photodegradation of Antifungal 3, 3′-Diindolylmethane by Xenon Lamp
  • 抗菌性3,3′-diindolylmethaneのキセノンランプによる光分解(短報)〔英文〕
  • コウキンセイ 3 3 diindolylmethane ノ キセノン ランプ

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抄録

The photodegradation of 3, 3′-diindolylmethane (DIM), which has the antifungal activity against Xanthomonas campestris pv. oryzae, Cochliobolus miyabeanus and Pyricularia oryzae, was investigated under xenon lamp irradiation. The maximal degradation of DIM in 12.5ppm methanol solution was observed in the UV range of 280nm to 290nm. The range of wavelengths for the maximal degradation shifted to longer wavelengths as DIM concentration in methanol solution increased. For example, the range shifted from 280-290nm in 12.5ppm solution to 320-330nm in 200ppm solution. Nine compounds were detected as the photo-degradation products of DIM and their structures were tentatively determined by gas chromatography-mass spectrometry as 3-formylindole, indole, 2-aminophenol, indole-2, 3-dione, methyl 2-aminobenzoate, indole-2-one, 3-methoxymethylindole, methyl 2-ethylaminobenzoate, and 1-(2-dimethylaminophenyl)ethanone, respectively.

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