Shivani Tanwar

Publications31
h-index13
Citations396
Highly Influential Citations7
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RP-LC Resolution of (R,S)-Atenolol via Diastereomerization with Marfey’s Reagent and Its Structural Variants Under Conventional and Microwave Heating
Abstract(R,S)-Atenolol was derivatized with Marfey’s reagent, (MR; 1-fluoro-2,4-dinitrophenyl-5-l-alanine amide or FDNP-l-Ala-NH2) and its four structural variants (FDNP-l-Phe-NH2, FDNP-l-Val-NH2,… Expand
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Synthesis of succinimidyl-(S)-naproxen ester and its application for indirect enantioresolution of penicillamine by reversed-phase high-performance liquid chromatography.
Synthesis of N-succinimidyl-(S)-2-(6-methoxynaphth-2-yl) propionate was carried out by the reaction of (S)-naproxen with N-hydroxysuccinimide in the presence of dicyclohexyl carbodiimide. It was… Expand
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Innovative sampling and extraction methods for the determination of nonsteroidal anti-inflammatory drugs in water.
Two different innovative approaches were used for the determination of nonsteroidal anti-inflammatory drugs (NSAIDs) in water: stir bar sorptive extraction (SBSE) and passive sampling, followed by… Expand
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Reversed-phase liquid chromatographic determination of enantiomers of atenolol in rat plasma using derivatization with Marfey's reagent.
An HPLC method was established for enantioseparation of (R,S)-atenolol (ATE) and determination of enantiomers in rat plasma. Marfey's reagent (1-fluoro-2,4-dinitrophenyl-5-L-alanine amide,… Expand
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Study of Convolvulus pluricaulis for antioxidant and anticonvulsant activity.
Convolvulus pluricaulis Choisy is a perennial wild herb commonly found on sandy & rocky areas under xerophytic conditions in northern India. It is a reputed drug of ayurveda and reported to posses… Expand
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Reversed-phase high-performance liquid chromatographic enantioresolution of six beta-blockers using dinitrophenyl-L-Pro-N-hydroxysuccinimide ester, N-succinimidyl-(S)-2-(6-methoxynaphth-2-yl)…
Twelve chiral derivatizing reagents (CDRs) were synthesized by substituting one of the fluorine atoms in 1,5-difluoro-2,4-dinitrobenzene (DFDNB) with three optically pure amines… Expand
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Synthesis of dinitrophenyl-L-Pro-N-hydroxysuccinimide ester and four new variants of Sanger's reagent having chiral amines and their application for enantioresolution of mexiletine using…
Four chiral derivatizing reagents (CDRs) having enantiomerically pure amines and two CDRs namely, [N-succinimidyl-(S)-2-(6-methoxynaphth-2-yl)propionate], and… Expand
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Different approaches of impregnation for resolution of enantiomers of atenolol, propranolol and salbutamol using Cu(II)-L-amino acid complexes for ligand exchange on commercial thin layer…
Atenolol and propranolol (the beta-blocking agents) and salbutamol (broncho- and vasodilator) were resolved into their enantiomers by adopting different modes of loading/impregnating the Cu(II)… Expand
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Chromatographic separation of enantiomers of non-protein α-amino acids after derivatization with Marfey’s reagent and its four variants
Some non-protein α-amino acids were derivatized with 1-fluoro-2,4-dinitrophenyl-5-l-alaninamide (Marfey’s reagent, MR, FDNP-l-Ala-NH2,) and four of its structural variants FDNP-l-Phe-NH2,… Expand
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Enantioresolution of Amino Acids: A Decade’s Perspective, Prospects and Challenges
Both from academic and industrial points of view enantioseparation of dl-amino acids continues to be a subject of immense importance and enjoys a great analytical significance in various fields, such… Expand
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