眼の脈絡膜のビタミンB_2とネコフラビン

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概要

• 論文の詳細を見る

• Nekoflavin (NF), isolated from cat's choroids, was identified with chemically synthesized 7α-hydroxyriboflavin. NF was extracted from cat's choroids with water, purified by successive column chromatographies and finally converted to the acetate form. The UV absorption spectrum of NF was very similar to that of riboflavin and the molecular weight of the acetate form was 602. From these facts NF was deduced to be either 7α-hydroxy- or 8α-hydroxyriboflavin (7α or 8αHORF), which were isolated from human urine by Ohkawa et al. The author chemically synthesized 7αHORF from N-acetyl-o-toluidine through 7-cyano-7-demethylriboflavin and 7α-aminoriboflavin. The synthesized acetate of 7αHORF was coincident with the acetate of NF in melting point, molecular weight, and UV absorption and ^1H-NMR spectrum. The free form of 7αHORF was coincident with natural NF in UV absorption sepctrum and also with 7αHORF in human urine in spectra of UV absorption and ^1H-NMR reported by Ohkawa et al.

• 日本ビタミン学会の論文
• 1995-09-25

著者

• 松井 邦夫

  大阪国際女子大

関連論文

• 1.ジアセトンリボフラビンの光異性化 : ビタミンB研究委員会 : 第349回会議研究発表要旨
• 9.ラット小腸刷子縁膜小胞へのリボフラビン結合の構造特異性 : ビタミンB研究委員会第342回会議研究発表要旨
• 6.ネコフラビンの化学構造 : ビタミンB研究委員会 第335回会議研究発表要旨
• 酸化反応から見た調理法
• 眼の脈絡膜のビタミンB_2とネコフラビン

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