Two newprenylated ortho‐dihydroxycoumarins, designated fipsomin (1) and fipsotwin (2), were isolated from the fruits of Ficus nipponica together with a known prenylated coumarin, apigravin (3). Their structures were established by spectroscopic data and X‐ray crystallographic analysis. Compound 1 exhibited antibacterial activity against Bacillus subtilis with an MIC value of 61 μm, while 2 and 3 showed
从日本榕的果实中分离出两种新的异戊二烯化邻二羟基香豆素,命名为 fipsomin (1) 和 fipsotwin (2),以及一种已知的异戊二烯化香豆素、apigravin (3)。它们的结构是通过光谱数据和 X 射线晶体学分析确定的。化合物1对枯草芽孢杆菌表现出抗菌活性,MIC值为61 μm,而化合物2和3表现出非常弱的活性。