BAYER PHARMA AKTIENGESELLSCHAFT; HAHN, Michael; LAMPE, Thomas; STASCH, Johannes-Peter; SCHLEMMER, Karl-Heinz; WUNDER, Frank; LI, Volkhart Min-Jian; BECKER, Eva-Maria; STOLL, Friederike; KNORR, Andreas; WOLTERING, Elisabeth
Patent: US2013/79412 A1, 2013 ;
Location in patent: Paragraph 0678-0679 ;

Perraud,R.; Arnaud,P.
Bulletin de la Societe Chimique de France, 1968 , p. 1540 - 1542