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. Author manuscript; available in PMC: 2023 Jan 1.
Published in final edited form as: J Pharmacol Toxicol Methods. 2021 Oct 20;113:107129. doi: 10.1016/j.vascn.2021.107129

Table 2.

Effect of specific substructural modifications on selectivity for S1R over S2R.

Compound Substructural feature S1R affinity (Ki, nM) S2R affinity (Ki, nM) S2R/S1R ration (Ki S2R / Ki S1R)
Carbetapentane graphic file with name nihms-1750690-t0012.jpg 19.8 ± 2.3 55.7 ± 3.8 3
Oxeladin graphic file with name nihms-1750690-t0013.jpg 25 ± 4.3 148 ± 64 6
Butamirate graphic file with name nihms-1750690-t0014.jpg 17.2 ± 1.7 214 ± 41 10