Using O=c1[nH]c2ncc(Br)nc2n1-c1ccc2[nH]ccc2c1, COc1cc(B(O)O)cc(OC)c1OC to produce COc1cc(-c2cnc3[nH]c(=O)n(-c4ccc5[nH]ccc5c4)c3n2)cc(OC)c1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.