Using O=C1NC(=O)c2ccccc21, CCOC(=O)Cc1ccc(OCCCCl)c(OC)c1 to produce CCOC(=O)Cc1ccc(OCCCN2C(=O)c3ccccc3C2=O)c(OC)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.