Using CNC(=O)c1sc(Br)c(C)c1Nc1nc(Nc2ccc3c(c2)CCOC(=O)N3C)ncc1Cl, CB(O)O to produce CNC(=O)c1sc(C)c(C)c1Nc1nc(Nc2ccc3c(c2)CCOC(=O)N3C)ncc1Cl, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.