A new flavone derivative, 3′-(γ,γ-dimethylallyloxy)-5,7-dihydroxy-4′-methoxyflavone (1), was isolated from Flos Sophorae Immaturus through microbial transformation by the fungus Nigrospora sphaerica ZMT05. Its structure was elucidated by comprehensive spectroscopic analyses. This compound showed moderate in vitro antifungal activities against Colletotrichum musae and Penicillium italicum.

中文翻译：

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球形黑孢 ZMT05 微生物转化苦参黄酮新化合物

一种新的黄酮衍生物，3'-(γ,γ-二甲基烯丙氧基)-5,7-二羟基-4'-甲氧基黄酮 (1)，是通过真菌 Nigrospora sphaerica ZMT05 从 Flos Sophorae Immaturus 中分离出来的。通过综合光谱分析阐明了其结构。该化合物在体外对炭疽菌和意大利青霉表现出中等的抗真菌活性。