Pharmacologically active guanidine derivatives

C - Chemistry – Metallurgy – 07 – D

Patent

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C07D 233/64 (2006.01) C07C 281/18 (2006.01) C07D 213/32 (2006.01) C07D 233/54 (2006.01) C07D 277/22 (2006.01) C07D 277/26 (2006.01) C07D 277/28 (2006.01)

Patent

CA 1076579

ABSTRACT OF THE DISCLOSURE Compounds are disclosed of the formula: Image where R1 represents the structure Het-(CH2)mZ(CH2)n- where Het is an imidazolyl, thiazolyl or pyridyl ring, which ring may be optionally substituted by a C1-C4 alkyl group, a chlorine atom or a bromine atom Z is sulphur or methylene m is 0, 1 or 2 n is 2 or 3 provided that the sum of m and n is 3 or 4z R2 is a C1-C4 alkyl group or the structure Het-(CH2)mZ(CH2)n- X is oxygen or NH and R3 is hydrogen, a C1-C4 alkyl group or phenyl. The compounds are histamine H2-antagonists and find use as inhibitors of gastric acid secretion, or anti-inflammatory agents.

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