Studies on the Alkaloids of Papaveraceous Plants. XXIX. Conformational Analysis of Tetrahydroprotoberberines by Carbon-13 Magnetic Resonance Spectroscopy

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概要

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• Analyses of CMR spectra at room temperature of the free bases, N-methosalts, and N-protonated salts of tetrahydroprotoberberines indicated that in the chloroform solution, the amount of the B/C-cis form in comparison with the B/C-trans form increases in the order of the alkaloids (such as tetrahydropalmatine (1)) in group I, those (such as capaurine (9)) in group II, and those (such as mesocorydaline (16)) in group III. The equilibrium of the B/C-trans and B/C-cis forms was confirmed by analyses of CMR spectra at low temperatures of tetrahydroprotoberberines in deuteriomethylene-chloride solution and the approximate proportion of the two conformations was determined in acetylcapaurine (13), diacetylcapaurimine (14), and capaurimine di-p-bromobenzoate (15).

• 公益社団法人日本薬学会の論文
• 1977-06-25

著者

• 杉浦 真喜子

  Kobe Women's College of Pharmacy

• 杉浦 真喜子

  Kobe Women's College Of Pharmacy

• 高尾 楢雄

  Kobe Women's College of Pharmacy

• 上垣内 みよ子

  Kobe Women's College of Pharmacy

• 岩佐 衣子

  神戸薬科大学生薬化学研究室

• 岩佐 衣子

  Kobe Women's College of Pharmacy

• 高尾 楢雄

  Kobe Women's College Of Pharmacy

• 岩佐 衣子

  Kobe Women's College Of Pharmacy

• 上垣内 みよ子

  Kobe Women's College Of Pharmacy

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