Using O=C(CCl)NCCN1CCOCC1, CCOC(=O)NCC(=O)c1ccc(O)cc1 to produce CCOC(=O)NCC(=O)c1ccc(OCC(=O)NCCN2CCOCC2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.