参考文献:
BRISTOL-MYERS SQUIBB COMPANY WACKER, Dean, A. ROSSI, Karen, A. WANG, Ying WU, Gang Patent: WO200/983 A, 200 Location in patent: Page/Page column 0 WO 200/00983 A
参考文献:
Kizner, T. A. Mikhaleva, M. A. Serebryakova, E. S. Chemistry of Heterocyclic Compounds (New York, NY, United States), 990 , vol. 26, # 6 p. 668 - 670 Khimiya Geterotsiklicheskikh Soedinenii, 990 , # 6 p. 80 - 803