Optical isomerization of <i>R</i>(−)-clidanac to the biologically active <i>S</i>(+)-isomer in guinea-pigs
作者:SHIGEO TAMURA、SEIJI KUZUNA、KIYOHISA KAWAI、SHOJI KISHIMOTO
DOI:10.1111/j.2042-7158.1981.tb13908.x
日期:2011.4.12
Optical isomerization of clidanac (RS-6-chloro-5-cyclohexyl-1-indancarboxylic acid, I), an anti-inflammatory drug having a chiral centre in its molecule, was evaluated in guinea-pigs. After oral administration of R(-)-I, the biologically active S(+)-isomer was detectable in the plasma, in the early stages. At 3 h after dosing R(-)-I, the plasma contained above 90% of the S(+)-isomer. Little conversion
在豚鼠中评估了克林达那(RS-6-氯-5-环己基-1-茚满羧酸,I)的光学异构化,该分子是分子中具有手性中心的消炎药。口服R(-)-I后,可在早期血浆中检测到具有生物活性的S(+)-异构体。给药R(-)-1后3小时,血浆中S(+)-异构体的含量超过90%。观察到很少的S(+)-I到R(-)-I的转化。这可能解释了该物种中R(-)-和S(+)-1的等效体内活性。对映体组成的测定需要将对映体衍生为它们的非对映体酰胺,然后使用薄层色谱法(tlc)进行分离。如此分离的化合物的定量测定是通过uv反射率的原位测量完成的。T。