Gnanadesikan, Vijay; Horiuchi, Yoshihiro; Ohshima, Takashi; Shibasaki, Masakatsu
Journal of the American Chemical Society, 2004 , vol. 126, # 25 p. 7782 - 7783

MERCK SHARP and DOHME LIMITED
Patent: WO2005/13985 A1, 2005 ;
Location in patent: Page/Page column 55 ;
WO 2005/013985 A1

Nippon Kayaku Kabushiki Kaisha
Patent: US5057535 A1, 1991 ;