Derivatives of cyclobutene-3,4,-dione as intermediates for...

Details Derivatives of cyclobutene-3,4,-dione as intermediates for... Derivatives of cyclobutene-3,4,-dione as intermediates for...

C - Chemistry, Metallurgy

07

D

260/293.1, 260/3

C07D 295/12 (2006.01) C07C 97/10 (1985.01) C07C 149/42 (1985.01)

Patent

CA 1190225

ABSTRACT Certain compounds of the formula -IMAGE- III are useful as intermediates of certain 1-(substituted amino) -2-(amino or substituted amino) cyclobutene-3,4-diones. The latter are histamine H2-antagonists useful in the treatment of peptic ulcers.

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