Using CC(C)(C)OC(=O)N1CCc2[nH]c3cccc(Br)c3c2CC1, COCCOC to produce COc1ccccc1-c1cccc2[nH]c3c(c12)CCN(C(=O)c1ccccc1)CC3, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.