Cyclobutane 1,3 diamine is a highly effective small molecule scaffold that offers both conformational restriction and optimized metabolic stability. Notably, Pfizer's Abrocitinib, a Enamine Ltd. Designing Ruthenium Phthalocyanine with Chiral Pockets Formed by (1R,2S,5R) Menthoxy Groups for Enantioselective Catalysis ACS Catalysis Frontiers Hepatocyte growth factor mimetic protects lateral line hair cells from aminoglycoside exposure Dihexa targets neurotrophic factors like BDNF and NGF, which drive brain repair. By activating the c MET receptor, it helps cells take in nutrients and rebuildespecially in cases where recovery is slow or