Using COCC(=O)Cl, COCCCc1cn(C)c2ccc(C(O)C(CC3COC(C)(C)N3C(=O)OC(C)(C)C)C(C)C)cc12 to produce COCCCc1cn(C)c2ccc(C(OC(=O)COC)C(CC3COC(C)(C)N3C(=O)OC(C)(C)C)C(C)C)cc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.