Hazato T, Naganawa H, Kumagai M, Aoyagi T, Umezawa H
J Antibiot (Tokyo). 1979 Mar;32(3):217-22. doi: 10.7164/antibiotics.32.217.
Six isoflavonoids having beta-galactosidase inhibiting activity were isolated from the culture filtrate of Streptomyces xanthophaeus. Their structures were determined by spectral analyses to be daidzein, daidzein 7-alpha-L-rhamnoside, daidzein 4',7-di-alpha-L-rhamnoside, genistein, genistein 7-alpha-L-rhamnoside and genistein 4',7-di-alpha-L-rhamnoside.
从黄色链霉菌的培养滤液中分离出六种具有β-半乳糖苷酶抑制活性的异黄酮。通过光谱分析确定它们的结构为大豆苷元、大豆苷元7-α-L-鼠李糖苷、大豆苷元4',7-二-α-L-鼠李糖苷、染料木黄酮、染料木黄酮7-α-L-鼠李糖苷和染料木黄酮4',7-二-α-L-鼠李糖苷。
