Using O=C(n1ccnc1)n1ccnc1, C=CCc1c(OC)ccc(C(=O)O)c1OCOC to produce C=CCc1c(OC)ccc2c(=O)n(C)c(=O)oc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.