Using CC1(C)COC(c2c(F)cc(C(C)(C)C)cc2C2OCCCO2)=N1 to produce COC1OC(=O)c2c(F)cc(C(C)(C)C)cc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.