The present invention provides a method for producing flavan derivatives having various substituent groups with controlling the stereochemistry. The method of the present invention includes the steps of: hydratively condensing a phenol compound expressed by formula (I) and an alcohol compound expressed by formula (II) to from an epoxide compound of formula (III); opening the epoxy ring of the epoxide compound of formula (III) to form an iodine-containing compound of formula (IV); and cyclizing the iodine-containing compound to form the flavan derivative of formula (V).
本发明提供了一种生产具有各种取代基并能控制立体
化学的黄烷衍
生物的方法。本发明的方法包括以下步骤:将式(I)表示的
苯酚化合物和式(II)表示的醇化合物进行
水合缩合,生成式(III)的
环氧化物化合物;打开式(III)
环氧化物化合物的环氧环,生成式(IV)的含
碘化合物;环化含
碘化合物,生成式(V)的黄烷衍
生物。