Using C1CC2(CCN1)OCCO2, COC(=O)c1ccc(C)c(Br)c1 to produce COC(=O)c1ccc(C)c(N2CCC3(CC2)OCCO3)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.