C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
260/326
C07D 207/20 (2006.01) C07D 207/327 (2006.01)
Patent
CA 1083160
Process for the preparation of new sulphamoylbenzoic acids Abstract of the Disclosure The invention relates to processes for the preparation of sulphamoylbenzoic acids of the formula Image in which R1 is a substituted or unsubstituted aryl radical, X is oxygen or sulphur, R2 is hydrogen, lower alkyl or oxa-lower alkyl or an aryl-radical,Py is a substituted or unsubstituted 1-pyrrolyl-radical and n is an integer from 0 to 4 and salts of these compounds, by methods known per se. The new compounds are valuable diuretics and saliuretics.
293789
Ag Ciba-Geigy
Fetherstonhaugh & Co.
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