(Rac) -Minzasolmin ((Rac) -UCB0599; NPT200-11) is a blood-brain barrier penetrated alpha-synuclein (ASYN) misfolding inhibitor. (Rac) -Minzasolmin acts on the early stage of ASYN aggregation process, by replacing the membrane-bound oligomers ASYN, allowing them to revert to the monomeric form, while preventing pathological aggregation. (Rac) -Minzasolmin effectively improves the ASYN deposition in the retina and the neuro-pathological indicators in two α-synuclein transgenic mouse models. (Rac) -Minzasolmin can be used for the studies of Parkinson's disease (PD) and dementia with Lewy bodies (DLB) [1].