Using COC(=O)CC1Nc2ccc(CNCc3nc4ccccc4[nH]3)cc2CN(C)C1=O to produce CN1Cc2cc(CNCc3nc4ccccc4[nH]3)ccc2NC(CC(=O)O)C1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.