Immobilization of enantioselective lipase on soluble supports for kinetic resolution of drug intermediates

TitleImmobilization of enantioselective lipase on soluble supports for kinetic resolution of drug intermediates
Publication TypeJournal Article
Year of Publication2012
AuthorsChaubey, A, Parshad, R, Taneja, SC, Deokar, SBabasaheb, Raman, RC, Ponrathnam, S
JournalJournal of Bioactive and Compatible Polymers
Volume27
Issue5
Pagination499-509
Date PublishedSEP
ISSN0883-9115
KeywordsArthrobacter sp lipase, Enantioselectivity, Immobilization, Kinetic resolution, N-vinylpyrrolidone, soluble polymer
Abstract

The microbial lipase, Arthrobacter sp. lipase (MTCC 5125), from the Indian Institute of Integrative Medicine repository, is known as an effective catalyst for high enantioselective kinetic resolution of drug intermediates. The ABL was immobilized on water-soluble linear supports by covalently binding it to the epoxy groups on the N-vinyl pyrrolidone/allyl glycidyl ether and N-vinyl pyrrolidone/glycidyl methacrylate copolymers. The immobilized lipase, on different soluble supports, had 90-110 mg/g protein binding and 500-700 U/g hydrolysis activities for tributyrin substrate. These copolymers had soluble/insoluble characteristics in different pH ranges, which is an advantage over insoluble copolymers. A soluble polymer at neutral pH provided better accessibility to the immobilized enzyme, which was recovered by precipitation at pH 2-3 for reuse. Kinetic resolution of racemic acyl derivatives of chiral auxiliaries and drug intermediates, namely, phenyl ethanol, aminoalcohol, and fluoxetine intermediate resulted in a significant enhancement in enantioselectivity (99%).

DOI10.1177/0883911512453638
Type of Journal (Indian or Foreign)Foreign
Impact Factor (IF)2.207
Divison category: 
Polymer Science & Engineering