Using O=C1CCOCC1, Cc1cc2[nH]c(=O)n(C3CCNCC3)c2cc1Cl to produce Cc1cc2[nH]c(=O)n(C3CCN(C4CCOCC4)CC3)c2cc1Cl, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.