Phytochemical Studies on Meliaceous Plants. VII. The Structures of Two New Ionone Glucosides from Melia toosendan SIEB. et ZUCC. and a Novel Type of Selective Biooxidation by a Kind of Protease

Tsutomu NAKANISHI; Mari KONISHI; Hiroko MURATA; Akira INADA; Atsushi FUJII; Naoki TANAKA; Takaji FUJIWARA

doi:10.1248/cpb.39.2529

Tsutomu NAKANISHI, Mari KONISHI, Hiroko MURATA, Akira INADA, Atsushi FUJII, Naoki TANAKA, Takaji FUJIWARA

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Keywords: Melia toosendan, Meliaceae, leaf, ionone glncoside, melia-ionoside A, melia-ionoside B, bio-oxidation, Molsin, saturated ionone alcohol

JOURNAL FREE ACCESS

1991 Volume 39 Issue 10 Pages 2529-2533

DOI https://doi.org/10.1248/cpb.39.2529

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Abstract

Two new ionone glucosides, melia-ionosides A and B, were isolated from leaves of Melia toosendan SIEB. et ZUCC. (Meliaceae) and their structures were elucidated based on combinations of chemical, spectral, and X-ray analytical studies. In addition, a novel type of selective bio-oxidation by a kind of protease (Molsin) was found during the course of the structural elucidation.

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