[Challenge] A1 The present invention provides compounds 7,2 structural formula (I) - relates to the salts derivatives "dehydration Fuerarin (7, 2" and -dehydrate puerarin), (I) 7,2 "of the present invention - dehydration Fuerarin be construed Fuerarin is obtained by intramolecular Mitsunobu reaction, to shorten significantly the duration of the arrhythmia, is extended significantly the clotting time, oral administration of the single compounds and can be used for the drug for salt or injections are used to treat heart, cerebrovascular diseases such as cerebral infarction and arrhythmia, and coronary heart disease, angina pectoris, myocardial infarction and. [Selection] Figure Figure 1【課題】【解決手段】 本発明は構造式(I)の化合物7,2″-脱水フエラリン(7, 2″-dehydrate puerarin)およびその塩類誘導物に関するもので、(I)本発明の7,2″-脱水フエラリンはフエラリンが分子内Mitsunobu反応によって得られるもので、不整脈の持続時間を著しく短縮し、凝血時間を著しく伸ばし、当該単体化合物およびその薬物用塩に使える経口投与又は注射剤は、不整脈や、冠状動脈心臓病や、狭心症、心筋梗塞および脳梗塞などの心臓・脳血管疾病の治療に使われる。【選択図】図1
