Using CC(C)(C)OC(=O)NCCCBr, Cc1ccc(N2CCN(C(=O)c3ccc(N4CCCS4(=O)=O)cc3O)CC2)c(C)c1 to produce Cc1ccc(N2CCN(C(=O)c3ccc(N4CCCS4(=O)=O)cc3OCCCNC(=O)OC(C)(C)C)CC2)c(C)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.