Using CCOC(=O)/C=C/c1ccc2c(c1)nc(N)c1nc(CC)n(CC3CCOCC3)c12 to produce CCOC(=O)CCc1ccc2c(c1)nc(N)c1nc(CC)n(CC3CCOCC3)c12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.