Using C[Sn](C)(C)C, CCOC(=O)CN(Cc1ccc(OC)cc1OC)Cc1nc(Br)sc1C(=O)OCC to produce CCOC(=O)CN(Cc1ccc(OC)cc1OC)Cc1nc(C)sc1C(=O)OCC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.