Using COC(=O)[C@H]1CC[C@H](CN2C=CN(C(=O)OCc3ccccc3)CC2=O)CC1 to produce COC(=O)[C@H]1CC[C@H](CN2CCNCC2=O)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.