Using O=C(CCl)N(CCC(O)(c1ccccc1)c1ccccc1)Cc1ccccc1 to produce O=C1COC(c2ccccc2)(c2ccccc2)CCN1Cc1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.