Using CCOC(=O)CCc1ccc(NC(=O)Cc2ccc(NC(=O)Nc3ccccc3C)c(OC)c2)cn1 to produce COc1cc(CC(=O)Nc2ccc(CCC(=O)O)nc2)ccc1NC(=O)Nc1ccccc1C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.