Using O=C(C=Cc1ccc(C(=O)OCc2ccccc2)cc1)Nc1ncccn1 to produce O=C(CCc1ccc(C(=O)O)cc1)NC1=NCCCN1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.