7-Hydroxyphthalide: a new natural salicylaldehyde analog from Oulenzia sp. (Astigmata: Winterschmitiidae) |
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Authors: | Shimizu N Kuwahara Y |
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Institution: | Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University, Japan. |
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Abstract: | A new salicyl lactone was detected from the unidentified Oulenzia sp. and its chemical structure was elucidated as 7-hydroxyphthalide (7-hydroxy-3H-isobenzofuran-1-one), based on its GC/MS and GC/FT-IR data and SiO2 column behavior. The compound was synthesized by NaBH4 reduction of 3-hydroxyphthalic anhydride. The GC/MS and GC/FT-IR spectra of the natural compound were consistent with those of the synthetic product. Although the compound is known as a medical material, this is the first example of its presence in nature. |
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