STUDY OF IN-VITRO BIOTRANSFORMATION OF PRODRUGS OF ESTER AND AMIDE LINKAGES OF IBUPROFEN, DICLOFENAC SODIUM AND PARACETAMOL IN ACIDIC AND ALKALINE MEDIUM
{ DOWNLOAD AS PDF }
ABOUT AUTHOR
Dhrubo Jyoti Sen
Department of Pharmaceutical Chemistry,
Shri Sarvajanik Pharmacy College,
Mehsana, Gujarat, India
dhrubosen69@yahoo.com
ABSTRACT: Our goal is to perform in-vitro biotransformation of Prodrugs of ibuprofen+paracetamol, diclofenac sodium+paracetamol and ibuprofen+diclofenac sodium by acidic and alkaline hydrolysis of both ester (–COO–) and amide (–CONH–) linkages into free drugs and chromatographically separation of their Rt in HPLC. Since both ester (–COO–) and amide (–CONH–) linkages are susceptible for hydrolysis in both acidic pH (gastric pH) and basic pH (intestinal pH) to produce parent drug ibuprofen, diclofenac and paracetamol by biotransformation in in-vivo; so it will be implemented as a Prodrug which can show prolong action on pain and fever after getting release into free parent drug by biotransformation. The HPLC (High Performance Liquid Chromatography) study reports the retention time (Rt) and release kinetics of three Prodrugs by taking HPLC degradation datas of three samples of Prodrugs and individual HPLC datas of parent drugs separately to compare the Rt value of release of three drugs from Prodrugs in both acidic and alkaline pH. Prodrug–A (logP=4.56) releases Ibuprofen & Paracetamol, Prodrug–B (logP=4.90) releases Diclofenac & Paracetamol and Prodrug–C (logP=6.13) releases Ibuprofen & Diclofenac. This is a comparison study of drug release in in-vitro gastric as well as intestinal pH focusing on in-vivo biotransformation. Keywords: Prodrug-A/Prodrug-B/Prodrug-C, Ibuprofen, Paracetamol, Diclofenac sodium, Molecular weight, logP, UV λmax, IR, Mobile phase, TLC-Rf value, HPLC-Rt value, LOD, LOC

Incorporated in the year 1994, Syngene International is one of India"s premier contract research and manufacturing organizations in providing customized service. Our services encompasses all across discovery chain: early stage discovery, process development, cGMP manufacturing and formulation development both in the small molecule and novel biologics area. Based in Bangalore, Karnataka, the Company is situated in a 90 acre Special Economic Zone with over 100000 sq. mt of built up facilities.
A global healthcare leader, Novartis has one of the most exciting product pipelines in the industry today. A pipeline of innovative medicines brought to life by diverse, talented and performance driven people. All of which makes them one of the most rewarding employers in their field.
