Crystalline Form Information from Multiwell Plate Salt Screening by Use of Raman Microscopy
作者:Takashi Kojima、Satomi Onoue、Noriaki Murase、Fumie Katoh、Takashi Mano、Yoshihisa Matsuda
DOI:10.1007/s11095-006-9644-7
日期:2006.4
tamoxifen citrate and fumarate salts were prepared on a large scale. The salts prepared were characterized by powder X-ray diffractometry (PXRD) and ion chromatography. RESULTS: The results of the multiwell salt screening indicated that tamoxifen has a tendency toward the formation of mono salt as opposed to hemi salt with polybasic acid, and that most of tamoxifen salts gave several potential polymorphic
目的:本研究的目的是建立一种有用的方法,可能提供有关通过使用多孔板和拉曼显微镜从盐筛选中获得的药物盐化学计量的信息。方法:用拉曼显微镜在96孔石英板上用一元酸和多元酸筛选他莫昔芬盐。通过偏振光显微镜和拉曼显微镜分别观察在96孔板上制备的盐的外观和结晶形式。基于盐筛选的结果,大规模制备了柠檬酸他莫昔芬和富马酸盐。制备的盐通过粉末X射线衍射法(PXRD)和离子色谱法表征。结果:多孔盐筛选的结果表明,他莫昔芬与形成多元酸的半盐相比具有形成单盐的趋势,并且大多数他莫昔芬盐具有几种潜在的多晶型形式。放大的柠檬酸他莫昔芬盐和富马酸盐的PXRD图谱表明,无论摩尔比为2:1或1:1(他莫昔芬/酸)如何,都可以从二元混合物中获得相同的结晶形式。通过离子色谱法测得的结晶形式是他莫昔芬单柠檬酸盐和单富马酸盐。结论:用拉曼显微镜在多孔板上进行盐筛选,除了潜在的多晶型信息外,还为化学计量盐的特征预测提供了新的见解。根据盐的化学计量信息,