1. Laboratory of Chemical Genomics, Shenzhen Graduate School of Peking University, Shenzhen 518055, People's Republic of China, and Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education and Beijing National Laboratory for Molecular Science (BNLMS), College of Chemistry, Peking University, Beijing 100871, People's Republic of China, Fax: (+86)‐755‐2603‐5326
2. Department of Chemistry, Durham University, South Road, Durham DH1 3 LE, United Kingdom, Fax: (+44)‐191‐384‐4737