William H. Rorer, Inc.
Patent: US4639442 A1, 1987 ;
US 4639442 A

Zhang, Hao; Ryono, Denis E.; Devasthale, Pratik; Wang, Wei; O'Malley, Kevin; Farrelly, Dennis; Gu, Liqun; Harrity, Thomas; Cap, Michael; Chu, Cuixia; Locke, Kenneth; Zhang, Litao; Lippy, Jonathan; Kunselman, Lori; Morgan, Nathan; Flynn, Neil; Moore, Lisa; Hosagrahara, Vinayak; Zhang, Lisa; Kadiyala, Pathanjali; Xu, Carrie; Doweyko, Arthur M.; Bell, Aneka; Chang, Chiehying; Muckelbauer, Jodi; Zahler, Robert; Hariharan, Narayanan; Cheng, Peter T.W.
Bioorganic and Medicinal Chemistry Letters, 2009 , vol. 19, # 5 p. 1451 - 1456

Baker; Lapworth
Journal of the Chemical Society, 1924 , vol. 125, p. 2337

McRae; Vining
Canadian Journal of Research, 1932 , vol. 6, p. 409,412