TAKEDA CHEMICAL INDUSTRIES, LTD.
Patent: WO2003/99793 A1, 2003 ;
Location in patent: Page 136 ;

Cottineau, Bertrand; Toto, Patrick; Marot, Christophe; Pipaud, Aline; Chenault, Jacques
Bioorganic and medicinal chemistry letters, 2002 , vol. 12, # 16 p. 2105 - 2108