Using COc1ccc(C(=O)C2CCN(C3CCN(CC(=N)N)C3=O)CC2)cc1, COC(=O)C1CCCC1=O to produce COc1ccc(C(=O)C2CCN(C3CCN(Cc4nc5c(c(=O)[nH]4)CCC5)C3=O)CC2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.