C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
167/208, 260/254
C07D 209/02 (2006.01) C07D 209/14 (2006.01) C07D 209/46 (2006.01) C07D 215/02 (2006.01) C07D 215/12 (2006.01) C07D 215/227 (2006.01) C07D 217/24 (2006.01) C07D 237/00 (2006.01) C07D 237/14 (2006.01) C07D 237/32 (2006.01) C07D 239/90 (2006.01) C07D 263/58 (2006.01)
Patent
CA 1295616
9387-95 Abstract Title: Antiarrhyehmic Agents Antiarrhythmic agents of the formula:- Image --- (I) and their pharmaceutically acceptable salts, wherein R is a C1-C4 alkyl group; R1 is a C1-C4 alkyl group; X is -CH2-, -CO- or -CH(OH)-; n is 2, 3 or 4; and "Het" is a 5- or 6-membered nitrogen-containing heterocyclic group which is attached to the adjacent carbon atom by a carbon or nitrogen atom and optionally contains a further heteroatom selected from O and N, said 5- or 6-membered nitrogen-containing heterocyclic group being either (i) substituted by a phenyl or benzyl group or (ii) fused at two adjacent carbon atoms to a benzene ring, said benzene ring being optionally substituted by 1 or 2 substituents each independently selected from halo and C1-C4 alkyl, and said 5- or 6-membered nitrogen-containing heterocyclic group being optionally substituted by up to 2 substituents each independently selected from oxo, halo and C1-C4 alkyl with the proviso that only one oxo substituent can be present.
534603
Arrowsmith John E.
Cross Peter E.
Thomas Geoffrey N.
Arrowsmith John E.
Cross Peter E.
Limited Pfizer
Smart & Biggar
Thomas Geoffrey N.
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