Using O=C(Nc1nc2ccc(Br)nc2s1)C(OC1CCOCC1)c1ccc(S(=O)(=O)C2CC2)cc1, C=C[Sn](CCCC)(CCCC)CCCC to produce C=Cc1ccc2nc(NC(=O)C(OC3CCOCC3)c3ccc(S(=O)(=O)C4CC4)cc3)sc2n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.