Using CCOCC(=O)Nc1c(NCCCOC(C)=O)c(C)c(C)n2nnnc12 to produce CCOCc1nc2c(c(C)c(C)n3nnnc23)n1CCCO, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.