Using Cc1ccncc1B(O)O, O=Cc1nn(C2CCCCO2)c2ncc(Br)cc12 to produce Cc1ccncc1-c1cnc2c(c1)c(C=O)nn2C1CCCCO1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.