This disclosure describes a compound of Formula 1 ##STR1## (including its pharmaceutically acceptable salts and esters) which has potent antihistamine activity which is substantially free from sedative effects and which has little or no anticholinergic effects.
本公开说明了一种化合物的公式1 ##STR1##(包括其药学上可接受的盐和酯),该化合物具有强大的抗
组胺活性,基本不会产生镇静作用,并且几乎没有抗
胆碱作用。