Using CC(C)(C)OC(=O)N[C@H](CCO)Cc1ccc(Br)cc1, C=C(OCC)[Sn](CCCC)(CCCC)CCCC to produce C=C(OCC)c1ccc(C[C@@H](CCO)NC(=O)OC(C)(C)C)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.