Using O=C(n1ccnc1)n1ccnc1, NCCCOc1ccc2[nH]c(=O)ccc2c1 to produce O=C(NCCCOc1ccc2[nH]c(=O)ccc2c1)n1ccnc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.