参考文献

BIOCRYST PHARMACEUTICALS, INC.; BABU, Yarlagadda S.; KOTIAN, Pravin L.; KUMAR, V. Satish; WU, Minwan; LIN, Tsu-Hsing Patent: WO2011/31554 A2, 2011 ; Location in patent: Page/Page column 163 ; WO 2011/031554 A1