Using O=C1Cc2ccccc2N1, CCc1nc(C)c(C=O)n1Cc1ccc(C(=O)OC)cc1 to produce CCc1cc(Cn2cncc2C=O)ccc1C(=O)O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.