1. GlaxoSmithKline R&D, Stevenage, Hertfordshire SG1 2NY, United Kingdom
2. WuXi Shanghai STA Pharmaceutical R&D Co., Ltd., No. 90 Delin Road, WaiGaoQiao Free Trade Zone, Shanghai 200131, China
3. WestCHEM, Department of Pure and Applied Chemistry, University of Strathclyde, Thomas Graham Building, 295 Cathedral Street, Glasgow G1 1XL, United Kingdom