Attempted Resolution of Citalopram Using (−)-<i>O</i>,<i>O′</i>-Di-<i>p</i>-toluoyl-(<i>R</i>,<i>R</i>)-tartaric Acid, and Reflections on an Alkylation Reaction; Comment on an Article by Elati et al.
作者:Robert James Dancer、Heidi Lopez de Diego
DOI:10.1021/op800101z
日期:2009.1.16
(i) an alkylation reaction to provide didesmethylcitalopram, (ii) resolution of didesmethylcitalopram by classical resolution using (−)-O-O′-di-p-toluoyl-(R,R)-tartaric acid (DTT) as the chiral acid, and (iii) dimethylation of the resolved product to give escitalopram. However, they also mention resolution of citalopram itself by classical resolution, again using DTT as the chiral acid. We have been unable