Using Nc1cccnc1OCCOC1CCCCO1, CCOC(=O)c1c[nH]c2c1-c1ncccc1CCC2 to produce O=C(Nc1cccnc1OCCOC1CCCCO1)c1c[nH]c2c1-c1ncccc1CCC2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.