Using CCOC(=O)CCNC(=O)c1ccc(NC(CC(C)C)c2cc(-c3ccc(OC)nc3)oc2C)cc1 to produce COc1ccc(-c2cc(C(CC(C)C)Nc3ccc(C(=O)NCCC(=O)O)cc3)c(C)o2)cn1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.