1. Hendrickson JB, Cram DJ, Hammond GS (1970) Organic Chemistry, 3rd edn. Mc-Graw Hill Book Co, New York
2. Laidler KJ (1995) Chemical Kinetics, 2nd edn. Tata Mc-Graw Hill, New Delhi
3. Hoffmann K (1953) Imidazole and its Derivatives. Interscience, New York
4. Bhatnagar A, Sharma PK, Kumar N (2011) Int J Pharm Tech Res 3:268
5. Haneda S, Okui A, Ueba C, Hayashi M (2007) Tetrahedron 63:2414