作者:F. Ivy Carroll、Abraham Philip、D. Mark Naylor、H. Dix Christensen、W. C. Goad
DOI:10.1021/jm00142a022
日期:1981.10
(S)-(+)- and (R)-(-)-5-Allyl-5-(1-methyl-2-pentynyl)-2-thiobarbituric acid (1, thiohexital) were prepared. The anesthetic activity (loss of righting reflex) and acute toxicity of the optically pure enantiomers of 1 were compared to the racemic isomer in mice. The S(+) isomer was found to be more potent as an anesthetic agent than the R(-) or RS(+/-) isomers. The therapeutic index was 2.5, 2.4, and 3.2
制备了(S)-(+)-和(R)-(-)-5-烯丙基-5-(1-甲基-2-戊炔基)-2-硫代巴比妥酸(1,thiohexital)。将光学活性对映异构体1的麻醉活性(对位反射丧失)和急性毒性与小鼠的外消旋异构体进行了比较。发现S(+)异构体作为麻醉剂比R(-)或RS(+/-)异构体更有效。RS(+/-),R(-)和S(+)异构体的治疗指数分别为2.5、2.4和3.2。当以各自的AD50值施用时,麻醉的发作和持续时间没有显着差异。突出的副作用是震颤,对于S(+)异构体,它比R(-)或RS(+/-)异构体少。