Using COc1ccc(COCc2nnc3n2-c2ccc(Cl)cc2N(c2ccccc2)C(=O)C3)cc1 to produce O=C1Cc2nnc(CO)n2-c2ccc(Cl)cc2N1c1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.