N#CC1(CS(=O)(=O)N2Cc3ccc(Cl)cc3[C@@]3(C2)C(=O)N(c2cncc4ccccc24)CC3(F)F)CC1
CNC(=O)C1(N2C[C@@]3(C(=O)N(c4cncc5ccccc45)CC3(F)F)c3cc(Cl)ccc3C2=O)CC1
difluoro pyrrollidone precedented in patent US-9359297, carbonyl-> CF2 with DAST / DCM. di F to reduce metabolism and acidify adjacent CH2 for potential H-bonding with Cys-145 S-.