RT Journal Article T1 2-(Fluoromethoxy)-4′-(S-methanesulfonimidoyl)-1,1′-biphenyl (UCM-1306), an Orally Bioavailable Positive Allosteric Modulator of the Human Dopamine D1 Receptor for Parkinson’s Disease A1 García Cárceles, Javier A1 Brea, José A1 Vázquez Villa, María Del Henar A1 Ladron de Guevara-Miranda, David A1 Cincilla, Giovanni A1 Sánchez Martínez, Melchor A1 Sánchez Merino, Anabel A1 Algar Lizana, Sergio A1 Teresa de los Frailes, María A1 Roberts, Richard S. A1 Ballesteros, Juan A. A1 Rodríguez De Fonseca, Fernando Antonio A1 Benhamú Salama, Bellinda A1 Loza, María I. A1 López Rodríguez, María Luz AB Tolerance development caused by dopamine replacement with L-DOPA and therapeutic drawbacks upon activation of dopaminergic receptors with orthosteric agonists reveal a significant unmet need for safe and effective treatment of Parkinson’s disease. In search for selective modulators of the D1 receptor, the screening of a chemical library and subsequent medicinal chemistry program around an identified hit resulted in new synthetic compound 26 [UCM-1306, 2-(fluoromethoxy)-4′- (S-methanesulfonimidoyl)-1,1′-biphenyl] that increases the dopamine maximal effect in a dose-dependent manner in human and mouse D1 receptors, is inactive in the absence of dopamine, modulates dopamine affinity for the receptor, exhibits subtype selectivity, and displays low binding competition with orthosteric ligands. The new allosteric modulator potentiates cocaine-induced locomotion and enhances L-DOPA recovery of decreased locomotor activity in reserpinized mice after oral administration. The behavior of compound 26 supports the interest of a positive allosteric modulator of the D1 receptor as a promising therapeutic approach for Parkinson’s disease. PB ACS SN 0022-2623 YR 2022 FD 2022-08-31 LK https://hdl.handle.net/20.500.14352/71989 UL https://hdl.handle.net/20.500.14352/71989 LA eng NO CRUE-CSIC (Acuerdos Transformativos 2022) NO Ministerio de Ciencia e Innovación (MICINN) NO Ministerio de Ciencia e Innovación (MICINN)/FEDER NO Instituto de Salud Carlos III (ISCIII)/FEDER DS Docta Complutense RD 10 abr 2025