Discovery and evaluation of non-basic small molecule modulators of the atypical chemokine receptor CXCR7.
2021
The atypical chemokine receptor C-X-C chemokine receptor type 7 (CXCR7) is an attractive therapeutic target for a variety of cardiac and immunological diseases. As a strategy to mitigate known risks associated with the development of higher molecular weight, basic compounds, a series of pyrrolidinyl-azolopyrazines were identified as promising small-molecule CXCR7 modulators. Using a highly enabled parallel medicinal chemistry strategy, structure-activity relationship studies geared towards a reduction in lipophilicity and incorporation of saturated heterocycles led to the identification of representative tool compound 20. Notably, compound 20 maintained good potency against CXCR7 with a suitable balance of physicochemical properties to support in vivo pharmacokinetic studies.
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