Using COc1cc(N2CCN(C(=O)OC(C)(C)C)CC2)c2c(c1)N(Cc1cccc(F)c1)C(=O)NC2 to produce COc1cc(N2CCNCC2)c2c(c1)N(Cc1cccc(F)c1)C(=O)NC2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.