Using COc1nc2c(N)nc(NCCC3CC3)nc2n1CC1CCOC1 to produce Nc1nc(NCCC2CC2)nc2c1[nH]c(=O)n2CC1CCOC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.