Using CCCCc1n[nH]c(CCCC)n1, COC(=O)c1ccccc1-c1ccc(CBr)cc1 to produce CCCCc1nc(CCCC)n(Cc2ccc(-c3ccccc3C(=O)OC)cc2)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.