1. E. Elzein, R. Kalla, J. Zablocki, et al., US Pat. Appl., 20070208040, Sept. 6, 2007; Chem. Abstr., 147, 344106 (2007).
2. G. C. Harriman, C. E. Masse, J. Harwood, et al., US Pat. Appl. 20130123231, May 16, 2013; Chem. Abstr., 158, 711376 (2013).
3. Y. Kotaiah, N. Harikrishna, K. Nagaraju, and C. V. Rao, Eur. J. Med. Chem., 58, 340 – 345 (2012).
4. D. Classen-Houben, A. Wolkerstorfer, O. Szolar, et al., US Pat. Appl. 20130102601, Apr. 25, 2013; Chem. Abstr., 158, 620878 (2013).
5. S. V. Vlasov, S. M. Kovalenko, and V. P. Chernikh, Zh. Org. Farm. Khim., 11(2), 41 – 46 (2013).