1. Shanghai Key Laboratory of Chemical BiologySchool of PharmacyEast China University of Science and Technology Shanghai 200237 P. R. China
2. Department of ChemistryGraduate School of ScienceKyoto University Sakyo-ku Kyoto 606-8501 Japan
3. School of Chemistry and Chemical Engineering, and Institute of, Molecular Medicine, Renji HospitalSchool of MedicineShanghai Jiao Tong University Shanghai 200240 P. R. China
4. State Key Laboratory of Bioreactor EngineeringEast China University of Science and Technology Shanghai 200237 P. R. China