1. Drug Substance Development, GSK, 1250 South Collegeville Road, Collegeville, Pennsylvania 19426, United States
2. Molecular Design, GSK, 1250 South Collegeville Road, Collegeville, Pennsylvania 19426, United States
3. ViiV Healthcare, Branford, Connecticut 06405, United States
4. Chemistry Service Unit, WuXi AppTec Co., Ltd., 168 Nanhai Road, Tianjin 300457, People’s Republic of China