Using C1COCCN1, CC(C)(CC(=O)O)NC(=O)OC(C)(C)C to produce CC(C)(CC(=O)N1CCOCC1)NC(=O)OC(C)(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.