1. Department of Chemistry; Lucknow University; Lucknow 226007 India
2. Medicinal Chemistry Department; CSIR-Central Institute of Aromatic Plants; Kukrail Road Lucknow 226015 India
3. Department of Chemistry; Delhi University; North Campus New Delhi 1100074 India
4. Division of SAIF; Central Drug Research Institute; Lucknow 226001 India