C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
167/209, 260/238
C07D 281/10 (2006.01) A61K 31/55 (2006.01) C07D 417/06 (2006.01)
Patent
CA 1338417
Calcium channel blocking activity is exhibited by compounds having the formula Image or a pharmaceutically accpetable salt thereof, wherein the stereochemistry at the chiral centers in the 2 and 3-positions of the benzo- thiazepine nucleus is cis, and wherein R1 is alkyl, aryl, arylalkyl, alkenyl or alkynyl; R2 and R5 are each independently hydrogen, alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, halogen or trifluoromethyl; and R3 and R4 are each independently alkyl or cycloalkyl or R3 and R4 together with the nitrogen atom to which they are attached are pyrrolidinyl, piperidinyl or morpholinyl.
541995
Atwal Karnail Singh
Floyd David Mack
E.r. Squibb & Sons Inc.
Osler Hoskin & Harcourt Llp
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