Using COC(=O)CBr, Clc1ccc2c(c1)CNCc1nnc(C3CCN(c4ccccn4)CC3)n1-2 to produce COC(=O)CN1Cc2cc(Cl)ccc2-n2c(nnc2C2CCN(c3ccccn3)CC2)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.