Relative Population of S-Form and F-Form Conformers of Bryonolic Acid and Its Derivatives in Equilibrium in CDCl_3 Solutions
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概要
- 論文の詳細を見る
Relative populations of S-form (D-E rings: boat-boat form) and F-form (D-E rings: chair-chair form) conformers, in equilibrium in CDCl_3 solutions, of 20 derivatives (2-21) of bryonolic acid (D:C-friedoolean-8-en-3β-ol-29-oic acid) (1) were calculated from NMR spectral data (J-values and chemical shifts), with the aid of molecular mechanic calculation using a MM2/CONFLEX program system. The principal deciding factor of the population ratio was found to be whether the functionality at C-29 is trigonal or tetrahedral; the S-form F-form was 0:100-32 : 68 for the "trigonal" type and 48 : 52-100 : 0 for the "tetrahedral." The reliability of the results is discussed.
- 公益社団法人日本薬学会の論文
- 2002-04-01
著者
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Honda Chie
School of Pharmacy and Pharmaceutical Sciences, Mukogawa Womens University
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Suwa Kiyoko
School of Pharmacy and Pharmaceutical Sciences, Mukogawa Womens University
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本田 千恵
Pharmaceutical Sciences Mukogawa Women's University
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Honda Chie
School Of Pharmaceutical Sciences Mukogawa Women's University
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Honda Chikako
Departments Of Physical Chemistry Showa Pharmaceutical University
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Honda C
School Of Pharmaceutical Sciences Mukogawa Women's University
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Suwa K
School Of Pharmacy And Pharmaceutical Sciences Mukogawa Women's University
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竹山 志朱代
Pharmaceutical Sciences Mukogawa Women's University
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TAKEYAMA Shizuyo
School of Pharmaceutical Sciences, Mukogawa Women's University
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KAMISAKO Wasuke
School of Pharmaceutical Sciences, Mukogawa Women's University
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Takeyama S
School Of Pharmaceutical Sciences Mukogawa Women's University
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Kamisako W
School Of Pharmaceutical Sciences Mukogawa Women's University
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Kamisako Wasuke
School Of Pharmaceutical Science Mukogawa Women's University
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Suwa Kiyoko
School of Pharmacy and Pharmaceutical Sciences, Mukogawa Women's University
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