It’s only fair to share… Gamcemetinib CAS 1887069-10-4 CC-99677 , OS2IR8TV1O Molecular Weight 469.94 Formula C22H20ClN5O3S (R)-3-((2-Chloro-5-(ethoxymethyl)pyrimidin-4-yl)oxy)-10-methyl-9,10,11,12-tetrahydro-8H-[1,4]diazepino[5′,6′:4,5]thieno[3,2-f]quinolin-8-one Gamcemetinib (CC-99677) is a potent, covalent, and irreversible inhibitor of the mitogen-activated protein (MAP) kinase-activated protein kinase-2 (MK2) pathway in both biochemical (IC50=156.3 nM) and cell based assays (EC50=89 nM). Gamcemetinib is extracted from patent WO2020236636, compound 1. SCHEME …