左旋体

罗哌卡因（Ropivacaine，RP）是一种新型、长效的纯左旋体酰胺类局麻药，其理化特性类似布比卡因；

Ropivacaine ( RP ) is a new , long-acting , pure S-enantiomer amide local anesthetic . The physicochemical properties of ropivacaine and bupivacaine are similar .

甲磺酸左氧氟沙星（LevofloxacinMesylate，MSALVFX）是本所研制的一种新的氟喹诺酮类抗菌药，是氧氟沙星左旋体的甲磺酸盐。

Prulifloxacin , a new fluoroquinolone antibacterial agent Levofloxacin Mesylate ( MSALVFX ) is a kind of newer fluoroquinolone antibacterial agent developed by our institute . It is a mesylate of levofloxacin .

左旋体和右旋体色谱峰的保留时间分别为30.2和33.8min。

The retention times of S - and R-pazufloxacin were 30.2 and 33.8 min , respectively .

体外抗真菌活性实验表明，左旋体的活性较差，消旋体和右旋体活性相当。

The in vitro antifungal test showed that the levo-isomer had weaker antifungal activity while the raceme was as potent as the dextro-isomer .

结果表明，单一左右旋对映体和等量的外消旋处理的高梁和黄瓜鲜重抑制作用差异显著，右旋体活性明显高于左旋体，也明显高于等量的外消旋体。

Results indicated that the ( + ) - enantiomer showed significantly higher activity on cucumber and sorghum fresh weight inhibition than that of the ( - ) - enantiomer , and also higher than that of the racemate at the same rate .

左旋氧氟沙星单体与左旋氧氟沙星凝胶的体外抗结核活性研究

A study on activity of levofloxacin and levofloxacin gel against Mycobacterium tuberculosis in vitro

它的分子结构中有一手性碳原子，大量研究结果证明其左旋光学异构体的生理活性比右旋异构体要高很多。

There is a chiral carbon atom in the EAMP 's molecule and it has been proved that the S-EAMP has higher biological activity than that of the D-EAMP .

右旋棉酚和左旋棉酚对离体大鼠黄体细胞的影响

Effects of Dextro - and Levo - Gossypol on Isolated Rat Luteal Cells in Vitro

左旋氧佛沙星凝胶与左旋氧氟沙星单体MIC、MBC值无显著差异；

The MIC and MBC of Levofloxacin gel and Levofloxacin had no significant difference without any harmful effect .