Bayer Pharmaceuticals Corporation
Patent: US2005/192294 A1, 2005 ;
Location in patent: Page/Page column 10 ;

Nagarajan, K.; Talwalker, P.K.; Kulkarni, C.L.; Venkateswarlu, A.; Prabhu, S.S.; Nayak, G.V.
Indian Journal of Chemistry, Section B: Organic Chemistry Including Medicinal Chemistry, 1984 , vol. 23, # 12 p. 1243 - 1257

Campaigne; Osborn
Journal of Organic Chemistry, 1957 , vol. 22, p. 561

Pierson et al.
Journal of Polymer Science, 1955 , vol. 17, p. 221,233