1. Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research, Sector 67, S.A.S. Nagar, Punjab 160 062 (India), Fax: (+91) 0172‐221‐4692
2. Current address: Department of Pharmaceutical Chemistry, I.S.F. College of Pharmacy, Moga, Punjab, 142 001 (India)
3. Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, Sector 67, S.A.S. Nagar, Punjab 160 062 (India)
4. Clinical Endocrinology Branch, NIDDK, National Institutes of Health, Bethesda, MD 20892 (USA)