Using CCOC(=O)C1CCC2(CC1)CC(c1cccc(OC)c1)=NO2 to produce COc1cccc(C2=NOC3(CCC(C(=O)O)CC3)C2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.