- SUBSTITUTED HETEROCYCLIC ACETAMIDES AS KAPPA OPIOID RECEPTOR (KOR) AGONISTS
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The present invention relates to a series of substituted compounds having the general formula (I), including their ste reoisomers and/or their pharmaceutically acceptable salts, wherein R1, R2, R3. R4, R5, and R6 are as defined herein. This invention also relates to methods of making these compounds including intermediates. The compounds of this invention are effective at the kappa (κ) opioid receptor (KOR) site. Therefore, the compounds of this invention are useful as pharmaceutical agents, especially in the treatment and/or prevention of a variety of central nervous system disorders (CNS), including but not limited to acute and chronic pain, and associated disorders, particularly functioning peripherally at the CNS.
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Page/Page column 66; 67
(2013/09/26)
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