英语语法分析

Various aryl triflates were produced.

生产了各种芳基三氟甲磺酸酯。

Aim To study the synthesis and antitumour activities of some aryl-substituted pteridines.

目的研究多芳基取代蝶啶类化合物的合成及其抗肿瘤活性。

Substituted (hetero) aryl compounds, process for preparation, agents containing them, and their use.

取代的（杂）芳基化合物， 其制备方法， 其制剂及用途。