<予防および治療>温州みかん(Citrus unshiu), ハッサク(Citrus hassaku HORT.), ユズ(Citrus junos SIEB.)およびイヨカン(Citrus iyo)果皮中の含窒素化合物およびアルキル配糖体の構造と生理活性

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  • <Prevention and therapy>Structure and physiological activity of nitrogenoused compound and alkyl glycosides in unshiu (Citrus unshiu), hassaku (Citrus hassaku HORT.), yuzu (Citrus junos SIEB.) and iyokan (Citrus iyo) peelings

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During the course of our studies on physiologically active substances in citrus fruit peels, one nitrogenoused compound and four alkyl glycosides were isolated from the unshiu, hassaku, yuzu and iyokan peels, and their structures were determined by MS, ^1H-NMR and ^<13>C-NMR spectroscopy. They were : N, α', N', α-cyclo di (4-methyl aminobenzene ethanol) [1], ethyl alcohol 1-β-glucopyranoside [2], propyl alcohol 1-β-glucopyranoside [3], hexyl alcohol 1-β-glucopyranoside [4] and hexyl alcohol 1-β-glucopyranosyl (1→6) -β-apiose [5]. Each component was intravenously injected in SHR-SP (1mg/ 100g body weight), and compound [2] was found to lower blood pressure, but compounds [1], [4] and [5] raised blood pressure. Among these compounds, [1] and [5] are new compounds, while [2], [3] and [4] were found in yuzu and iyokan peelings for the first time.

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