“…The 1,4-dihydropyridine heterocyclic ring is a common feature of various bioactive compounds such as antihypertensive, antitumor, vasodilator, bronchodilator, anti atherosclerotic, hepatoprotective, anti mutagenic, and anti diabetic agents (Janis and Triggle, 1983;Sausins and Duburs, 1988;Mager et al, 1992;Manhold et al, 1992). A number of 1,4-dihydropyridine calcium channel antagonists have been introduced as potential drugs for the treatment of cardiovascular disease (Gordeev et al, 1996;Testa et al, 1997;Triggle 2003a, b;Baranda et al, 2006;Gupta and Misra, 2008). In particular, dihydropyridine druges such as Nifedipine (1, Fig.…”