Using O=C(C=CC1=Cc2cnc3cccc(n23)S1)NC1CCNCC1, BrCCc1ccccc1 to produce O=C(C=CC1=Cc2cnc3cccc(n23)S1)NC1CCN(CCc2ccccc2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.