摘要 |
Compounds useful for the treatment of pain in accord with the following structural diagram, wherein A, R<SUP>1</SUP>, b, R<SUP>3</SUP>, d, R<SUP>4</SUP>, R<SUP>5</SUP>, R<SUP>6 </SUP>and R<SUP>7 </SUP>are any of a number of groups as defined in the specification, and pharmaceutical compositions and methods of treatment utilizing such compounds.
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