参考文献:
MERCK SHARP and DOHME CORP. COBURN, Craig, A. MCCAULEY, John, A. LUDMERER, Steven, W. LIU, Kun VACCA, Joseph, P. WU, Hao HU, Bin SOLL, Richard SUN, Fei WANG, Xinghai YAN, Man ZHANG, Chengren ZHENG, Mingwei ZHONG, Bin ZHU, Jian Patent: WO200/483 A, 200 Location in patent: Page/Page column 25 WO 200/483 A