(cis)-3-methyl-1,5-benzothiazepine-4-ones: potent analogs of the calcium channel blocker diltiazen |
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Authors: | Karnail S. Atwal Syed Z. Ahmed David M. Floyd Suzanne Moreland Anders Hedberg |
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Affiliation: | Bristol-Myers Squibb Pharmaceutical Research Institute, P. O. Box 4000, Princeton, N.J. 08543 U.S.A. |
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Abstract: | 3-Methyl analogs of the calcium channel blocker diltiazem are reported. The title compounds were prepared from readily available amino thiophenols by a six step sequence which involves setting up the desired 2,3-cis-stereochemistry through decarboxylation under acidic conditions. To our knowledge, there are the most potent analogs of diltiazem reported to date. |
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