Using CCCC[Sn](C=COCC)(CCCC)CCCC, CCOC(=O)c1cnc2ccc(Br)cn12 to produce CCO/C=C/c1ccc2ncc(C(=O)OCC)n2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.