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1·Heterocycle is always pyrimidine or triazine.

其中杂环部分常为嘧啶环或均三嗪环。

2·In this paper, we studied two kinds of phosphorus heterocycle.

本论文中，我们研究了两类不同的含磷杂环化合物。

3·Biogenic amine is a kind of low molecular compounds belonging to nitric fatty group or heterocycle group.

生物胺是一类含氮的脂肪族或杂环类低分子化合物。

4·Many isoxazole heterocycle compounds have efficiency or super-efficiency in controlling the growth of weeds.

异恶唑杂环化合物在专利报道中出现许多高效或超高效的新品种。

5·In this paper, a simple method for the synthesis of some chromones containing a nitrogen heterocycle substituted at 2 - position is reported.

研究了一种简便的合成2位含氮杂环色酮类化合物的方法。

6·Furthermore, according to the ring-open principle, semicarbazide moiety was used to replace amino heterocycle to get semicarbazide derivatives.

进一步根据药物设计的开环原理，用氨基脲片段替代氨基杂环，得到新型的氨基脲类抑制剂。

7·The solid phase synthesis of small molecule libraries was reviewed in this paper, which included heterocycle libraries and nonheterocycle libraries.

从杂环化合物库和非杂环化合物库两方面介绍了组合化学中采用固相合成技术所构建的小分子化合物库。

8·Biogenic amine is a kind of low molecular weight compounds containing nitric fatty group or heterocycle group. They have biological importance in vegetable, microbial and animal cells.

生物胺是一类含氮的脂肪族或杂环类低分子化合物，对动植物和微生物活性细胞有重要的生理作用。

9·The invention relates to a preparation method of a high-tensile high-model heterocycle aramid fiber, which comprises an integrated production method from polymerization, spinning to post-process.

本发明涉及一种高强高模杂环芳纶的制备方法，包括从聚合到纺丝再到后处理的整套生产方法。

10·The splitting method adopted for preparing single chiral 2-heterocycle substituted dihydro pyrimidine compounds has the product yield more than 20 percent and the optical purity above 98 percent;

采用本发明的拆分方法制备单一手性2-杂环取代的 二氢嘧啶化合物的产物收率为20％以上，光学纯度达98％以上；

杂环

1·Many isoxazole heterocycle compounds have efficiency or super-efficiency in controlling the growth of weeds.

异恶唑杂环化合物在专利报道中出现许多高效或超高效的新品种。

2·In this paper, a simple method for the synthesis of some chromones containing a nitrogen heterocycle substituted at 2 - position is reported.

研究了一种简便的合成2位含氮杂环色酮类化合物的方法。

3·The invention relates to a preparation method of a high-tensile high-model heterocycle aramid fiber, which comprises an integrated production method from polymerization, spinning to post-process.

本发明涉及一种高强高模杂环芳纶的制备方法，包括从聚合到纺丝再到后处理的整套生产方法。

4·Furthermore, according to the ring-open principle, semicarbazide moiety was used to replace amino heterocycle to get semicarbazide derivatives.

进一步根据药物设计的开环原理，用氨基脲片段替代氨基杂环，得到新型的氨基脲类抑制剂。