Using O=C1Cc2ccccc2C(=O)N1C[C@H]1CC[C@H](C(=O)O)CC1, CC(=O)N1CCNCC1 to produce CC(=O)N1CCN(C(=O)[C@H]2CC[C@H](CN3C(=O)Cc4ccccc4C3=O)CC2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.