The enantioseparation of 3-alkyl-isoindolin-1-ones（1—9） and 3-alkyl-3-hydroxy-isoindolin-1-ones（10—14）（R=Me,Et,n-Pr,n-Bu,n-C5H 11 ,n-C7H 15 ,i-Bu,Ph and Bn）,as well as 3-n-heptyl-2-[2-hydroxy-1-phenylethyl]-is...The enantioseparation of 3-alkyl-isoindolin-1-ones（1—9） and 3-alkyl-3-hydroxy-isoindolin-1-ones（10—14）（R=Me,Et,n-Pr,n-Bu,n-C5H 11 ,n-C7H 15 ,i-Bu,Ph and Bn）,as well as 3-n-heptyl-2-[2-hydroxy-1-phenylethyl]-isoindolin-1-one（15） by HPLC using （S）-tert-leucine and （S）-1-α-NEA as a chiral stationary phase,and 1%—6%（volume fraction） 2-propanol or ethanol in hexane as the mobile phase was studied. The effect of content of polar solvent in mobile phase on the enantioseparation was discussed. The effects of 3-substituents on retention factor and chiral recognition were studied. For the majority of racemates（1—14）,a baseline separation could be obtained. For racemate（15）,the elution orders are （3R,1′R）/（3S,1′S） then （3R,1′S）/（3S,1′R） with n-hexane/2-propanol（volume ratio 99∶1） as a mobile phase and the resolutions are 1.44 and 5.58,respectively. [WT5HZ]展开更多
采用Chiralcel OD H和Chiralpak AD H手性柱,研究5种新近合成的外消旋双芳基硒代甘油硫醚和 4 种芳基硒代甘油烷氧醚对映体的高效液相色谱拆分方法.对比这两种手性固定相、异丙醇和乙醇流动相调节剂、以及样品结构对硒代甘油醚色谱拆分...采用Chiralcel OD H和Chiralpak AD H手性柱,研究5种新近合成的外消旋双芳基硒代甘油硫醚和 4 种芳基硒代甘油烷氧醚对映体的高效液相色谱拆分方法.对比这两种手性固定相、异丙醇和乙醇流动相调节剂、以及样品结构对硒代甘油醚色谱拆分的影响.除样品(1c)外,其他8个外消旋硒代甘油醚样品均可达到基线拆分.展开更多
Several kinds of racemic naproxen ester were successfully separated on CTMB chiral stationary phase with hexane-ethanol (98:2, vol./vol.) as the mobile phase. The influence of mobile phase composition and structure o...Several kinds of racemic naproxen ester were successfully separated on CTMB chiral stationary phase with hexane-ethanol (98:2, vol./vol.) as the mobile phase. The influence of mobile phase composition and structure of racemic naproxen ester on chiral separation was studied and the chiral recognition mechanism of CTMB was discussed.展开更多
文摘The enantioseparation of 3-alkyl-isoindolin-1-ones（1—9） and 3-alkyl-3-hydroxy-isoindolin-1-ones（10—14）（R=Me,Et,n-Pr,n-Bu,n-C5H 11 ,n-C7H 15 ,i-Bu,Ph and Bn）,as well as 3-n-heptyl-2-[2-hydroxy-1-phenylethyl]-isoindolin-1-one（15） by HPLC using （S）-tert-leucine and （S）-1-α-NEA as a chiral stationary phase,and 1%—6%（volume fraction） 2-propanol or ethanol in hexane as the mobile phase was studied. The effect of content of polar solvent in mobile phase on the enantioseparation was discussed. The effects of 3-substituents on retention factor and chiral recognition were studied. For the majority of racemates（1—14）,a baseline separation could be obtained. For racemate（15）,the elution orders are （3R,1′R）/（3S,1′S） then （3R,1′S）/（3S,1′R） with n-hexane/2-propanol（volume ratio 99∶1） as a mobile phase and the resolutions are 1.44 and 5.58,respectively. [WT5HZ]
文摘采用Chiralcel OD H和Chiralpak AD H手性柱,研究5种新近合成的外消旋双芳基硒代甘油硫醚和 4 种芳基硒代甘油烷氧醚对映体的高效液相色谱拆分方法.对比这两种手性固定相、异丙醇和乙醇流动相调节剂、以及样品结构对硒代甘油醚色谱拆分的影响.除样品(1c)外,其他8个外消旋硒代甘油醚样品均可达到基线拆分.
文摘Several kinds of racemic naproxen ester were successfully separated on CTMB chiral stationary phase with hexane-ethanol (98:2, vol./vol.) as the mobile phase. The influence of mobile phase composition and structure of racemic naproxen ester on chiral separation was studied and the chiral recognition mechanism of CTMB was discussed.
文摘以纤维素衍生物为手性固定相,建立药物中间体1-苯乙烯基-3-己基丙炔醇对映体的HPLC手性分析方法。以正己烷与乙醇或异丙醇为流动相,在Chiralcel OD-H手性固定相上对1-苯乙烯基-3-己基丙炔醇进行了拆分,并考察了流动相组成、流速和柱温对该对映体分离的影响,获得较优分析条件,分析时间在15 min内,分离度大于1.5。结果表明,1-苯乙烯基-3-己基丙炔醇对映体在正己烷-异丙醇(体积比90:10)为流动相、流速为1.0 m L/min、柱温为25℃时,分离效果最佳。本方法可用于1-苯乙烯基-3-己基丙炔醇对映体的质量控制。
