BOEHRINGER INGELHEIM INTERNATIONAL GMBH; BOYER, Stephen, James; GAO, Donghong, Amy; GUO, Xin; KIRRANE, Thomas, Martin, Jr.; SARKO, Christopher, Ronald; SNOW, Roger, John; SOLEYMANZADEH, Fariba; ZHANG, Yunlong
Patent: WO2011/71716 A1, 2011 ;
WO 2011/071716 A1

Bogavac,M. et al.
Bulletin de la Societe Chimique de France, 1969 , p. 4437 - 4442