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. 2021 Jan 21;22(3):1035. doi: 10.3390/ijms22031035

Table 2.

Comparison of the number of records with low (pKa < 6) and high (pKa > 8) basicity for the considered targets. In brackets, the fraction of basic ligands among all active compounds is provided.

5-HT1B 5-HT2A 5-HT2B 5-HT2C
Low basicity 8 (1.04%) 228 (7.66%) 229 (22.50%) 329 (17.06%)
High basicity 584 (75.75%) 2005 (67.35%) 613 (60.22%) 1258 (65.25%)
Total number of ligands 771 2977 1018 1928