[The anti-H1-histaminic and antimuscarinic effect of 2- and 4-[benzyl-(2-dimethylaminoethyl)amino]pyrimidine compounds].

This paper reports the synthesis of 2- and 4- [benzyl-(2-dimethylaminoethyl)amino]pyrimidine compounds and the evaluation of their inhibitory properties against histamine (H1), acetylcholine and barium chloride, on guinea pig isolated ileum. 4-[p.Methoxybenzyl-(2-dimethylaminoethyl)amino]-2-methoxy-pyrimidine (VIII) is shown to possess H1 receptor antagonist activity, with a potency similar to that observed for Tonzylamine.

[4-[Benzyl-(2-dimethylaminoethyl)amino]pyrimidine compounds with selective antagonistic activity against H1-histamine receptors].

This paper describes the synthesis of 2- and 4-[benzyl-(2-dimethylaminoethyl)amino]pyrimidine compounds and their antihistaminic properties studied on isolated guinea-pig ileum. Calculated pA2 values show that the antihistaminic activity of 4-[p.methoxybenzyl-(2-dimethylaminoethyl)amino]pyrimidine is specific and potent (8-10 times higher than that of thonzylamine).