Using CC[Sn](CC)(CC)CC, CCOC(=O)c1cn(Cc2ccccc2)nc1OCc1ccc(OCc2nc(-c3ccco3)oc2C)c(Br)c1 to produce CCOC(=O)c1cn(Cc2ccccc2)nc1OCc1ccc(OCc2nc(-c3ccco3)oc2C)c(CC)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.