Using C1CCNC1, COCC1CCN(c2nc(CC(=O)O)nc3scc(-c4ccccc4)c23)CC1 to produce COCC1CCN(c2nc(CC(=O)N3CCCC3)nc3scc(-c4ccccc4)c23)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.