1. Department of Pharmaceutical Chemistry; Bombay College of Pharmacy; Kalina; Santacruz (East); Mumbai; 400 098; India
2. Department of Pharmaceutical & Biological Chemistry; School of Pharmacy; University College London; 29-39 Brunswick Square; London; WC1N 1AX; UK
3. National Chemical Laboratory; Dr. Homi Bhabha Road; Pune; 411008; India