Using CC(C)(C)CC(=O)Cl, CCOC(=O)C1CCCc2sc(N)nc21 to produce CCOC(=O)C1CCCc2sc(NC(=O)CC(C)(C)C)nc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.