[1] Swami Vivekanandha Inst Pharmaceut Sci, Dept Pharmaceut Chem, Vangapally 508286, AP, India
[2] JKK Munirajah Med Res Fdn Coll Pharm, Dept Pharmaceut Chem, Komarapalayam 638183, TN, India
[3] Swami Vivekanandha Inst Pharmaceut Sci, Dept Pharmacognosy, Vangapally 508286, AP, India
[4] JSS Coll Pharm, Dept Pharmaceut Chem, Ootacamund 643001, TN, India