Using COCOc1cccc(CCc2ccccc2OCCC2CCN(C(=O)OC(C)(C)C)CC2)c1 to produce Oc1cccc(CCc2ccccc2OCCC2CCNCC2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.