Nirogi, Ramakrishna V. S.; Konda, Jagadishu Babu; Kambhampati, Ramasastry; Shinde, Anil; Bandyala, Thrinath Reddy; Gudla, Parandhama; Kandukuri, Kiran Kumar; Jayarajan, Pradeep; Kandikere, Vishwottam; Dubey, P. K. Bioorganic and Medicinal Chemistry Letters, 2012 , vol. 22, # 22 p. 6980 - 6985,6