Using CC1(C)C(=O)N(CCC=O)c2cc3[nH]c(NC(=O)c4ccccc4)nc3cc21, CC(C)(C)ON to produce CC(C)(C)ON=CCCN1C(=O)C(C)(C)c2cc3nc(NC(=O)c4ccccc4)[nH]c3cc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.