Using Nc1ccc(B(O)O)cn1, Brc1cc2c(s1)-c1ncccc1OCC2 to produce Nc1ccc(-c2cc3c(s2)-c2ncccc2OCC3)cn1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.