Download full text in PDF Opens in a new window. Article suggestions will be shown in a dialog on return to ScienceDirect. ... Please enable JavaScript to use all the features on this page. ... Synthesis of N-substituted-3,4-dihydro-2H-1-benzopyran derivatives which have a potential affinity for the 5-HT 1A receptor is reported. The comparison between the experimental values of binding and the prediction of QSAR studies is described. ... Preparation of N-substituted-3,4- ...