Using COc1nc2c(N)nc(OCCC(C)C)nc2n1CC1CCOCC1 to produce CC(C)CCOc1nc(N)c2[nH]c(=O)n(CC3CCOCC3)c2n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.