Guanidine derivatives of imidazoles and thiazoles

Details Guanidine derivatives of imidazoles and thiazoles Guanidine derivatives of imidazoles and thiazoles

1980-07-25

1982-08-31

Berch, Mark L.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

548337, C07D27740, C07D26348

Patent

active

043473709

ABSTRACT:
The invention relates to guanidine derivatives of imidazoles and thiazoles which are histamine H-2 antogonists and which inhibit the secretion of gastric acid, to methods for their manufacture, to pharmaceutical compositions containing them and to methods of using such guanidine derivatives and compositions. The guanidine derivatives are of the general formula I: ##STR1## in which X is S or NH, Y is O, S, or SO, m is 1 to 4 and n is suitably 1 to 4, R.sup.1 is hydrogen, halogen or alkyl, R.sup.2 is hydrogen, alkyl, alkanoyl or aroyl, A is a 3,4-dioxocyclobuten-1,2-diyl radical or C.dbd.Z in which Z is O, S, NCN, NNO.sub.2, CHNO.sub.2, NCONH.sub.2, C(CN).sub.2, NCOR.sup.3, NCO.sub.2 R.sup.3, NSO.sub.2 R.sup.3 or NR.sup.4 in which R.sup.3 is alkyl or aryl and R.sup.4 is hydrogen or alkyl, B is alkoxy or alkylthio or NR.sup.5 R.sup.6 in which R.sup.5 and R.sup.6 are independently hydrogen, alkyl, alkenyl, cycloalkyl, hydroxyalkyl, alkoxyalkyl, alkylaminoalkyl or dialkylaminoalkyl; and the salts thereof.

REFERENCES:
patent: 4283408 (1981-08-01), Hirata
patent: 4309435 (1982-01-01), Yellin

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