Facile Synthesis of Kwakhurin, a Marker Compound of Pueraria mirifica and Its Quantitative NMR Analysis for Standardization as a Reagent

被引:5
|
作者
Tsuji, Genichiro [1 ]
Yusa, Masaaki [1 ]
Masada, Sayaka [1 ]
Yokoo, Hidetomo [1 ,2 ]
Hosoe, Junko [1 ]
Hakamatsuka, Takashi [1 ]
Demizu, Yosuke [1 ,2 ]
Uchiyama, Nahoko [1 ]
机构
[1] Natl Inst Hlth Sci, 3-25-26 Tonomachi, Kawasaki, Kanagawa 2109501, Japan
[2] Yokohama City Univ, Grad Sch Med Life Sci, Tsurumi Ku, 1-7-29 Suehiro, Yokohama, Kanagawa 2300045, Japan
关键词
kwakhurin; Pueraria mirifica; kwao keur; total synthesis; isoflavone; quantitative NMR; ENANTIOSELECTIVE TOTAL-SYNTHESIS; KWAO KEUR; PLANT;
D O I
10.1248/cpb.c20-00346
中图分类号
R914 [药物化学];
学科分类号
100701 ;
摘要
The side effects of kwao keur dietary supplements (obtained from the tuberous root of Pueraria mirifica) have recently been reported by the Ministry of Health, Labour and Welfare, Japan. To control the quality of kwao keur products, its ingredients need to be maintained by characteristic marker compounds, such as miroestrol, deoxymiroestrol, and kwakhurin (KWA). In this study, we described the facile synthesis of KWA, a marker compound of P. mirifica. Our revised synthetic method produced KWA with shorter steps and higher yield than the reported method. Furthermore, the absolute purity of KWA was determined by quantitative NMR analysis for standardization as a reagent, and its purity was 92.62 +/- 0.12%.
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页码:797 / 801
页数:5
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