Using COc1cc(N2CCC(=O)CC2)ccc1-c1nc2c(c(C3CCCCC3)nn2C)c(=O)[nH]1 to produce COc1cc(N2CCC(O)CC2)ccc1-c1nc2c(c(C3CCCCC3)nn2C)c(=O)[nH]1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.