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Along with tile rapid development of chirality science, the preparation of optically active chiral lactones is becoming increasingly important for research in chemistry and biochemistry.

摘要随着手性科学的快速发展，获取手性内酯的单一对映体具有重要的研究和应用价值。

Their leucocyte and haematoblast numbers before and after the intervention were o erved, and the succe ful cases were counted. Results: The numbers of leucocyte and haematoblast in patients after the therapeutics both rose.

观察术前进行肝脾双介入治疗的原发性肝癌伴脾亢患者24例在介入前后白细胞、血小板计数改变情况及介入后成功进行手术治疗的例数。