Using CCOC(=O)C1=C(O)c2ccc(OC)cc2C2(CCOCC2)C1=O, CC(C)(C)OC(=O)CN to produce COc1ccc2c(c1)C1(CCOCC1)C(=O)C(C(=O)NCC(=O)OC(C)(C)C)=C2O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.