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. Enhanced Electrokinetic Remediation of Polychlorinated biphenyls in Transformer Oil Contaminated Soils: Synergistic Application of Surfactants and Oxidants for PCBs Removal Water, Air, & Soil Pollution Springer Nature Link Dihexa (PNB 0408) c Met HGFR Activator MedChemExpress Designing Ruthenium Phthalocyanine with Chiral Pockets Formed by (1R,2S,5R) Menthoxy Groups for Enantioselective Catalysis ACS Catalysis