Author(s): Breslin HJ, Cai C, Miskowski TA, Coutinho SV, Zhang SP,
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Abstract Using previously reported opioid receptor (OR) agonist analogs 4a-c as starting points, the structure-activity relationship (SAR) for their related series has been further refined. This SAR study has led to the identification of 2,6-di-Me-Tyr (DMT) analogs 4h and 4j as the most potent OR agonist within the series. In addition, it was discovered that 4-(aminocarbonyl)-2,6-dimethyl-Phe is a reasonable bioisostere surrogate for the DMT moiety, as supported by the OR activities of compounds 4x and 4y.
This article was published in Bioorg Med Chem Lett
and referenced in Clinical & Medical Biochemistry