Structure-Activity Relationship in the Taste Effect of Ribonucleotide Derivatives
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概要
- 論文の詳細を見る
Flavor enhancing activities synergistic with monosodium L-glutamate and stimulus thresholds of ribonucleotide derivatives have been correlated with their chemical structures following Hansch-Fujita's method. Regression analyses were made separately for two groups, 2-substituted inosine 5'-phosphates and S-substituted 2-mercaptoinosine 5'-phosphates. Superdelocalizability, net π-charge, Hammett σ_m, and hydrophobic parameter π were used in the analyses. Nuclear magnetic resonance chemical shift of the-SCH_2X group and a dummy variable D, which represents a proton accepting oxygen atom at the γ- or δ-position from the sulfur atom in substituents attached to the 2-position of purine skeleton, were employed successfully in a series of 2-S-substituted derivatives. In a series of 2-substituted derivatives, it has been recognized that flavor enhancing activities are influenced by Hammett σm and electrophilic superdelocalizability at the α-position of substituents (S_<2a>), whereas thresholds are correlated with S_<2a> and π. In a series of 2-S-substituted derivatives, it has been shown that π, D, and electrophilic superdelocalizability of the methylene protons in the -CH_2S-group of substituents play important roles in the structure-activity relationships.
- 社団法人日本薬学会の論文
- 1972-06-25
著者
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西川 正夫
Chemical Research Laboratories, Central Research Division, Takeda Chemical Industries, Ltd.
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西川 正夫
Research Laboratories, Takeda Chemical Industries, Ltd.
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今井 欣一
Research Laboratories, Takeda Pharmaceutical Iudustries, Ltd.
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戸田 準
Research and Development Division, Takeda Chemical Industries, Ltd.
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今井 欣一
Animal Health Products Division Takeda Chemical Industries Ltd.
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水田 栄治
Research and Development Division, Takeda Chemical Industries, Ltd.
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鈴木 延勇
Research and Development Division, Takeda Chemical Industries, Ltd.
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杉林 裕夫
Research and Development Division, Takeda Chemical Industries, Ltd.
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戸田 準
Research And Development Division Takeda Chemical Industries Ltd.
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西川 正夫
Central Research Division Takeda Chemical Industries Ltd.
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西川 正夫
Research Laboratories Takeda Chemical Industries Ltd.
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水田 栄治
武田薬品工業
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杉林 裕夫
Research And Development Division Takeda Chemical Industries Ltd.
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