摘要
该工作对手性化合物的构效关系进行了研究,其内容包括:(1)对二维拓扑指数A_(mi)进行了扩展,即在指数的衍生中加入手性碳原子的因素,使之成功地应用于14个手性化合物活性的预测;(2)描述了构象独立的手性指数(CICC法)和构象依赖的手性指数(CDCC法),采用CDCC和CICC预测了80个二级醇的~1H NMR化学位移差的符号,并由此可以确定该类化合物的绝对构型;(3)描述了原子构象依赖的手性指数(aCDCC),并将这种方法用于手性仲醇的α-碳原子的^(13)C NMR在不同手性溶剂中的化学位移差的预测,获得了满意的结果.
The researches about chiral indexes have been described. These are : ( 1 ) the chiral topological indices obtained by extending Ami indices suggested by our laboratory and the studies of the modified topological indices on pharmacological activities of fourteen N-alkylated 3-(3-hydroxyphenyl) -piperidines; (2) two chirality indexes ( CDCC and CICC) and its application for a dataset of 80 chiral secondary alcohols esterified with (R)-MTPA to predict the corresponding ^1H NMR chemical shifts difference; (3) atomic conformation-dependent chirality code and its prediction for 13 C NMR chemical shifts of chiral secondary alcohols in two enantiomeric chiral solvents. Satisfactory results for these studies were obtained.
出处
《计算机与应用化学》
CAS
CSCD
北大核心
2008年第6期733-736,共4页
Computers and Applied Chemistry