Using CCOC(=O)CC[C@H](NC(=O)c1ccc(CCCC(c2c(N)nc(N)nc2N)C(OC)OC)cc1)C(=O)OCC, N to produce CCOC(=O)CC[C@H](NC(=O)c1ccc(CCCc2c[nH]c3nc(N)nc(N)c23)cc1)C(=O)OCC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.