染料母核和碘翁阳离子的结构均对离子对体系的性质有影响。
Ion pairs with different structure of either dye anion or onium cation have different properties.
黄酮类化合物是一类低分子天然植物成分，这类化合物具有共同的母核c6 - C3 - C6。
The flavonoid is a kind of low molecular natural plant ingredient, and this kind of compound has common parent nucleus C6-C3-C6.
本发明公开了一种具有如式i所示的母核结构的化合物在制备MMP - 9酶活性抑制剂中的用途。
The invention discloses application of a compound which is shown in a formula I and has a mother nucleus structure in preparing an MMP-9 enzymatic activity inhibitor.
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