参考文献:
MERCK SHARP andamp DOHME CORP. METABASIS THERAPEUTICS, INC. BOOKSER, Brett, C. DANG, Qun GIBSON, Tony, S. JIANG, Hongjian CHUNG, De Michael BAO, Jianming JIANG, Jinlong KASSICK, Andy KEKEC, Ahmet LAN, Ping LU, Huagang MAKARA, Gergely, M. ROMERO, F., Anthony SEBHAT, Iyassu WILSON, David WODKA, Dariusz Patent: WO2/47982 A, 2 Location in patent: Page/Page column 85 WO 2/47982 A