Takeda Pharmaceutical Company Limited
Patent: EP2371826 A1, 2011 ;
Location in patent: Page/Page column 46 ;

E. I. du Pont de Nemours and Company
Patent: US5750471 A1, 1998 ;

Park, Chi Hoon; Choe, Hyeonjeong; Jang, In-Young; Kwon, So Yeong; Latif, Muhammad; Lee, Heung Kyoung; Lee, Hyeon Ji; Yang, Eun Hye; Yun, Jeong In; Chae, Chong Hak; Cho, Sung Yun; Choi, Sang Un; Ha, Jae Du; Jung, Heejung; Kim, Hyoung Rae; Kim, Pilho; Lee, Chong Ock; Yun, Chang-Soo; Lee, Kwangho
Bioorganic and Medicinal Chemistry Letters, 2013 , vol. 23, # 22 p. 6192 - 6196

Yen, Hung-Ju; Tsai, Chia-Liang; Wang, Pei-Hsuan; Lin, Jiang-Jen; Liou, Guey-Sheng
RSC Advances, 2013 , vol. 3, # 38 p. 17048 - 17056