Using CCOC(=O)c1cc2cccc(NCCCNC(=O)OC(C)(C)C)c2n1C to produce Cn1c(C(=O)O)cc2cccc(NCCCNC(=O)OC(C)(C)C)c21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.