参考文献

MERCK PATENT GMBH; SCHIEMANN, Kai; SCHULTZ, Melanie; STAEHLE, Wolfgang; KOBER, Ingo; WIENKE, Dirk; KRIER, Mireille Patent: WO2010/63352 A1, 2010 ; Location in patent: Page/Page column 88-89 ; WO 2010/063352 A1