Using C1COCCN1, CCOC(=O)c1n[nH]c2c(=O)[nH]c3cc(Cl)ccc3c(=O)c12 to produce O=C(c1n[nH]c2c(=O)[nH]c3cc(Cl)ccc3c(=O)c12)N1CCOCC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.