Using CCOC(=O)Cc1c(Br)n(C(=O)OC(C)(C)C)c2ccc(OC)nc12, CCCCC([Sn])=C(CCCC)CCCC to produce C=Cc1c(CC(=O)OCC)c2nc(OC)ccc2n1C(=O)OC(C)(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.