Using CCOC(=O)CBr, O=c1[nH]c2cnc3[nH]ccc3c2n1C1CCCNC1 to produce CCOC(=O)CN1CCCC(n2c(=O)[nH]c3cnc4[nH]ccc4c32)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.