Using C=CC(=O)OC(C)(C)C, CC(C)c1nc(C(=O)N2CCOC3(CCN(CCc4csc(CCO)c4)CC3)C2)cs1 to produce CC(C)c1nc(C(=O)N2CCOC3(CCN(CCc4csc(CCOCCC(=O)OC(C)(C)C)c4)CC3)C2)cs1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.