Fukatsu, Kohji; Uchikawa, Osamu; Kawada, Mitsuru; Yamano, Toru; Yamashita, Masayuki; Kato, Koki; Hirai, Keisuke; Hinuma, Shuji; Miyamoto, Masaomi; Ohkawa, Shigenori
Journal of Medicinal Chemistry, 2002 , vol. 45, # 19 p. 4212 - 4221

Takeda Chemical Industries, Ltd.
Patent: US6235789 B1, 2001 ;