专利号:US-10030003-B2 优先权日:2014-09-10 标 题:Synthesis of isoflavanes and intermediates thereof 发明人:BELIAEV NIKOLAI; SHAFRAN YURI 权利人:SYSTEM BIOLOGIE AG 摘要:Subject of the invention is a method for enantioselective production of an isoflavane from an isoflavone, comprising the steps: (a) selectively reducing the isoflavone, such that the 4-keto group of the isoflavone is converted to a 4-hydroxy group, and the 2,3-double bond of the isoflavone is converted to a 2,3-single bond, thereby obtaining a 4-hydroxy intermediate, and (b) reacting the 4-hydroxy intermediate with a chiral reagent, such that a chiral group is covalently attached to the C4-position of the 4-hydroxy intermediate, thereby obtaining a chiral intermediate. The invention also relates to intermediates of formulae (IV), (V), (VI) and (VII) obtainable in the inventive process.
专利号:US-8969596-B2 优先权日:2008-08-14 标题:Synthesis of equol 发明人:STEFFAN BERT 权利人:STEFFAN BERT 摘要:Subject of the invention is a method for the production of isoflavanes from isoflavones, whereby in a first reaction step (a) the 4-keto group of the isoflavone is reduced in a enantioselective manner, whilst the 2,3-double bond is maintained, to the 4-hydroxy compound.
专利号:US-2012094336-A1 优先权日:2008-08-14 标题:Synthesis of equol
专利号:CA-2960437-A1 优先权日:2014-09-10 标 题 :Synthesis of isoflavanes and intermediates thereof
专利号:US-2017283389-A1 优先权日:2014-09-10 标题 :Synthesis of Isoflavanes and Intermediates Thereof
专利号:CN-115975963-A 优先权日:2023-02-08 标 题:Method and application of whole cell catalyzed synthesis of hydroxylated flavonoids using Escherichia coli P450 enzyme
参考文献:10.1016/j.jams.2012.07.022 摘要:Bae M, Woo M, Kusuma IW, Arung ET, Yang CH, Kim Y. Inhibitory Effects of Isoflavonoids on Rat Prostate Testosterone 5α-Reductase. Journal of Acupuncture and Meridian Studies. 2012 Dec;5(6):319–22. doi: 10.1016/j.jams.2012.07.022.