1. State Key Laboratory of Bioorganic
and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai
200032, China
2. Department
of Chemistry and
The Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La
Jolla, California 92037, United States, and Department of Chemistry
and Biochemistry, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States