Using CCOC(=O)c1nc2ccccc2n(-c2cccc(C)n2)c1=O to produce Cc1cccc(-n2c(=O)c(C(=O)O)nc3ccccc32)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.