Using CC(C)(C)OC(=O)N1CCC(CCN2CCc3sc(Br)cc3C2=O)CC1, O=C1CCCCO1 to produce CC(C)(C)OC(=O)N1CCC(CCN2CCc3sc(C(=O)CCCCO)cc3C2=O)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.