Using CC(=O)OCCBr, CC(=O)OCC(=O)Nc1c(I)c(C(=O)NCC(O)CC(O)CO)c(I)c(C(=O)NCC(O)CC(O)CO)c1I to produce O=C(NCC(O)CC(O)CO)c1c(I)c(C(=O)NCC(O)CC(O)CO)c(I)c(N(CCO)C(=O)CO)c1I, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.