Using Brc1c(Br)c(Br)c2[nH]cnc2c1Br, COC(=O)CCCCCCCBr to produce O=C(O)CCCCCCCn1cnc2c(Br)c(Br)c(Br)c(Br)c21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.