Using COc1cc2c(Nc3ccc(NC(=O)OC(C)(C)C)cc3)ncnc2cc1OCCCN1CCOCC1 to produce COc1cc2c(Nc3ccc(N)cc3)ncnc2cc1OCCCN1CCOCC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.