Structure-Activity Relationship Studies of the Cyclic Depsipeptide Natural Product YM-254890, Targeting the Gq Protein.

Extracellular signals perceived by G protein-coupled receptors are transmitted via G proteins, and subsequent intracellular signaling cascades result in a plethora of physiological responses. The natural product cyclic depsipeptides YM-254890 and FR900359 are the only known compounds that specifically inhibit signaling mediated by the Gq subfamily. In this study we exploit a newly developed synthetic strategy for this compound class in the design, synthesis, and pharmacological evaluation of eight new analogues of YM-254890. These structure-activity relationship studies led to the discovery of three new analogues, YM-13, YM-14, and YM-18, which displayed potent and selective Gq inhibitory activity. This provides pertinent information for the understanding of the Gq inhibitory mechanism by this class of compounds and importantly provides a pathway for the development of labeled YM-254890 analogues. © 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.

Citation

Hang Zhang, Xiao-Feng Xiong, Michael W Boesgaard, Christina R Underwood, Hans Bräuner-Osborne, Kristian Strømgaard. Structure-Activity Relationship Studies of the Cyclic Depsipeptide Natural Product YM-254890, Targeting the Gq Protein. ChemMedChem. 2017 Jun 07;12(11):830-834

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PMID: 28509439

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