2C-B-NBOMe 2C-C-NBOMe 2C-I-NBOH 2C-I-NBOMe 2CBCB-NBOMe βk-2C-B Atazanavir C30-NBOMe Ceftriaxone DOB DOC DOI Emtricitabine Racivir Lumefantrine mCPP mCPP tetrahydropyridine derivative Ondansetron Pentamidine Pyrazolam Ribavirin Sulfamethoxazole Tamoxifen Vinblastine 2C-C-NBOMe 2C-I-NBOMe 5-HT2C agonist pharmacophore best fit 5-HT2C pharmacophore hit general structure 5-HT2C pharmacophore hit 1 5-HT2C pharmacophore hit 2 5-HT2C pharmacophore hit 3 5-HT2C pharmacophore hit 4 5-HT2C pharmacophore hit 5