申请人:Pfizer Products Inc.
公开号:EP1126277A2
公开(公告)日:2001-08-22
This invention provides a RP-HPLC method, for the determination of logPoct values, which combines ease of operation and high accuracy, and which has been shown to work for a set of 36 molecules largely comprised of drugs. The general features of the method are: i) compound sparing (≤1 mL of a 30-50 µg/mL solution needed), ii) rapid determinations (20 minutes on average), iii) low sensitivity to impurities, iv) wide lipophilicity range (6 logPoct units), v) good accuracy, vi) excellent reproducibility. A linear free energy relationship (LFER) analysis, based on solvation parameters, shows that the method encodes the same information obtained from a shake-flask logPoct determination. The value generated via this method is referred to as ElogPoct.
本发明提供了一种测定 logPoct 值的 RP-HPLC 方法,该方法兼具操作简便性和高准确性的特点,并已证明可用于一组 36 种分子(主要由药物组成)的测定。该方法的一般特点是:i) 节省化合物(30-50 µg/mL 的溶液只需 ≤ 1 mL);ii) 快速测定(平均 20 分钟);iii) 对杂质的敏感性低;iv) 亲脂性范围宽(6 logPoct 单位);v) 精确度高;vi) 重现性好。基于溶解参数的线性自由能关系(LFER)分析表明,该方法与摇瓶 logPoct 测定所获得的信息相同。通过该方法得出的值称为 ElogPoct。