Using COc1ccc(CCCN2CC[C@H](OC(=O)c3ccc([N+](=O)[O-])cc3)C2)cc1 to produce COc1ccc(CCCN2CC[C@H](O)C2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.