Kumar, Atul; Sharma, Siddharth; Gupta, Lalit Prakash; Ahmad, Pervez; Srivastava, Swayam Prakash; Rahuja, Neha; Tamrakar; Srivastava, Arvind K. Bioorganic and Medicinal Chemistry, 2012 , vol. 20, # 6 p. 2172 - 2179