Surrey et al.
Journal of the American Chemical Society, 1959 , vol. 81, p. 2894,2895

Cheng, Jianjun; Zeidan, Ryan; Mishra, Swaroop; Liu, Aijie; Pun, Suzie H.; Kulkarni, Rajan P.; Jensen, Gregory S.; Bellocq, Nathalie C.; Davis, Mark E.
Journal of Medicinal Chemistry, 2006 , vol. 49, # 22 p. 6522 - 6531