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Biradar DO, Mane YD, Yadav JS, Subba Reddy BV. Prins cyclization: new strategy for the stereoselective total synthesis of Polyrhacitide A. Nat Prod Res 2023:1-11. [PMID: 38041627 DOI: 10.1080/14786419.2023.2288694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Accepted: 11/22/2023] [Indexed: 12/03/2023]
Abstract
A highly stereoselective total synthesis of polyrhacitide A, a polyketide natural product, has been accomplished by means of Prins cyclisation. The key precursor i.e. anti-1,3-diol for polyrhacitide A has been prepared from trans-2,6-disubstituted-3,4-dihydropyrans. In this approach, Prins cyclisation has successfully been utilised twice for the construction of 1,3-diol unit of polyrhacitide A. The key steps involved in this approach are Jacobsen hydrolytic kinetic resolution, Mitsunobu inversion, Prins cyclisation and Ring-closing metathesis (RCM).
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Affiliation(s)
- Dhanraj O Biradar
- Chemistry, Indian Institute of Chemical Technology, Hyderabad, India
- Maharashtra Mahavidyalaya, Nilanga, India
| | | | - Jhillu S Yadav
- Chemistry, Indian Institute of Chemical Technology, Hyderabad, India
| | - B V Subba Reddy
- Chemistry, Indian Institute of Chemical Technology, Hyderabad, India
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2
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Singh Deb AK, Pahan S, Dasgupta K, Panja S, Debnath AK, Dhami PS, Ali SM, Kaushik CP, Yadav JS. "Carbon nano tubes functionalized with novel functional group- amido-amine for sorption of actinides". J Hazard Mater 2021; 402:123758. [PMID: 33254772 DOI: 10.1016/j.jhazmat.2020.123758] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Affiliation(s)
| | - S Pahan
- Process Development Division, India; Homi Bhabha Natioanl Institute, India
| | - K Dasgupta
- Materials Processing and Corrosion Engineering Division, India
| | - S Panja
- Fuel Reprocessing Division, India.
| | | | | | - Sk M Ali
- Chemical Engineering Division, India.
| | - C P Kaushik
- Nuclear Recycle Group, India; Homi Bhabha Natioanl Institute, India
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3
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Kedari CS, Yadav JS, Kaushik CP. TALSPEAK process on hollow fiber renewable liquid membrane apropos to the remedial maneuver of high level nuclear waste. J Hazard Mater 2020; 399:123050. [PMID: 32535519 DOI: 10.1016/j.jhazmat.2020.123050] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 05/21/2020] [Accepted: 05/22/2020] [Indexed: 06/11/2023]
Abstract
In concurrence with objectives of advanced high level nuclear waste(HLW) management, separation of chemically similar trivalent actinides and lanthanides is accomplished using TALSPEAK (Trivalent Actinide - Lanthanide Separation by Phosphorous reagent Extraction from Aqueous Komplexes) process on hollow fibre renewable liquid membrane (HFRLM). Permeability coefficient(Kf) of metal ions are determined under varying concentrations of diethylene triamine pentacaetic acid (DTPA) and H+ in the feed solution, containing 241Am with other metal impurities usually occurred in the HLW, and di(2-ethylhexyl) phosphoric acid (HDEHP) in liquid membrane and receiving emulsion phase. Optimized process conditions obtained are: 5 ± 0.25 L feed solution: containing 0.05 M DTPA, 1 M lactic acid and metal ions under the agitation of 400 ± 15 rpm, receiving phase: emulsion of 400 ± 15 mL 2 M HNO3 + 100 mL 0.2 M HDEHP/dodecane under stirring at 650 ± 25 rpm. The Kf of metal ions obtained under optimized process conditions are in the order: Am(III)<<Sm(III)<Nd(III)<Sr(II)<Pr(III)<U(VI) <Y(III)<Ce(III)<La(III). The maximum Kf = 9.24 × 10-3 cm min-1 is obtained for La(III) whereas Sm(III) with Kf = 7.4 × 10-4 cm min-1 is the most difficult lanthanide to separate from Am(III). For the single step process of HFRLM, the decontamination factor obtained for Am is 412. Agreement between Kf values, determined by model and experimental data are within 10 %.
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Affiliation(s)
- C S Kedari
- Fuel Reprocessing Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India.
| | - J S Yadav
- Fuel Reprocessing Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
| | - C P Kaushik
- Nuclear Recycle Group, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
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4
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Gaddam J, Reddy AVV, Sarma AVS, Yadav JS, Mohapatra DK. Total Synthesis and Structural Revision of Greensporone F and Dechlorogreensporone F. J Org Chem 2020; 85:12418-12429. [PMID: 32875792 DOI: 10.1021/acs.joc.0c01644] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
The first asymmetric total syntheses of the real isolation product (2S,5R,8R)-greensporone F and (2S,5R,8R)-dechlorogreensporone F, 14-membered resorcylic acid lactones with a cis-2,5-disubstituted tetrahydrofuran ring system, was accomplished. The synthesis features a late-stage Lewis acid-catalyzed stereoselective intramolecular oxa-Michael reaction, E-selective ring-closing metathesis, De Brabander's esterification, and Jacobsen's hydrolytic kinetic resolution as the key steps. Synthesis of both real isolation and erroneously proposed structure necessitated the revision of the absolute configuration of greensporone F and dechlorogreensporone F. The erroneous representation of (2S,5S,8S)-configuration in greensporone F and dechlorogreensporone F was assigned to be (2S,5R,8R) by comparison with the NMR data and specific rotation of the synthetic compounds with that of the reported data.
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Affiliation(s)
- Janardhan Gaddam
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
| | - Aedula Vishnu V Reddy
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
| | - Akella V S Sarma
- Centre for NMR and Structural Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Jhillu S Yadav
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India.,School of Science, Indrashil University, Kadi, Gujarat 382740, India
| | - Debendra K Mohapatra
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
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5
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Gajula S, Vishnu V. Reddy A, Reddy DP, Yadav JS, Mohapatra DK. Stereoselective Synthesis of the C1-C16 Fragment of the Purported Structure of Formosalide B. ACS Omega 2020; 5:10217-10224. [PMID: 32391510 PMCID: PMC7203982 DOI: 10.1021/acsomega.0c01474] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Accepted: 04/10/2020] [Indexed: 06/11/2023]
Abstract
The first stereoselective synthesis of the C1-C16 fragment possessing stereo-enriched fully substituted tetrahydropyran (THP) along with tetrahydrofuran (THF) rings of the proposed structure of formosalide B is described in 12 longest linear steps with 22% overall yield, starting from two cheap and commercially available 1,5-pentanediol and l-glutamic acid, following a convergent approach. The key steps involve in this synthesis are Horner-Wadsworth-Emmons reaction, Sharpless asymmetric dihydroxylation, and acid-mediated ketalization to assemble the substituted THP ring, one-pot Sharpless dihydroxylation-SN2-type cyclization, and Wittig homologation to construct the THF derivative.
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Affiliation(s)
- Srinivas Gajula
- Department
of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, 201002, India
| | - Aedula Vishnu V. Reddy
- Department
of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - D. Prabhakar Reddy
- Department
of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, 201002, India
| | - Jhillu S. Yadav
- Department
of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Debendra K. Mohapatra
- Department
of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, 201002, India
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6
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Padma R, Srinivas B, Yadav JS, Mohapatra DK. General Asymmetric Synthetic Strategy for the α-Alkylated 2,5,6-Trisubstituted Pyran of Indanomycin and Related Natural Products. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000156] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Ravishetty Padma
- Department of Organic Synthesis and Process Chemistry; CSIR-Indian Institute of Chemical Technology; 500 007 Hyderabad India
| | - Beduru Srinivas
- Department of Organic Synthesis and Process Chemistry; CSIR-Indian Institute of Chemical Technology; 500 007 Hyderabad India
| | - Jhillu S. Yadav
- Department of Organic Synthesis and Process Chemistry; CSIR-Indian Institute of Chemical Technology; 500 007 Hyderabad India
- School of Science; Indrashil University; Kadi Gujarat India
| | - Debendra K. Mohapatra
- Department of Organic Synthesis and Process Chemistry; CSIR-Indian Institute of Chemical Technology; 500 007 Hyderabad India
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7
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Affiliation(s)
- Khandregula Srinivasu
- CSIR-Indian Institute of Chemical Technology Hyderabad 500007 India
- CSIR-Indian Institute of Chemical Technology An Associate Institution of University of Hyderabad Hyderabad 500046 India
| | - Kommu Nagaiah
- CSIR-Indian Institute of Chemical Technology Hyderabad 500007 India
| | - Jhillu S. Yadav
- CSIR-Indian Institute of Chemical Technology Hyderabad 500007 India
- CSIR-Indian Institute of Chemical Technology An Associate Institution of University of Hyderabad Hyderabad 500046 India
- School of Science, Indrashil University Kadi, Mehsana, Gujarat 382740 India
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8
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Gonela UM, Yadav JS. Synthesis of chiral propargyl alcohols following the base-induced elimination protocol: application in the total synthesis of natural products. NEW J CHEM 2020. [DOI: 10.1039/c9nj05626b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Synthesis of enantiomerically pure propargyl alcohols is one of the most important tools in organic synthesis and “base-induced elimination of β-alkoxy chlorides” could offer the enantiomerically pure propargyl alcohols.
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Affiliation(s)
- Uma Maheshwar Gonela
- Natural Product Chemistry Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad
- India
| | - Jhillu S. Yadav
- Natural Product Chemistry Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad
- India
- School of Science
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9
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Yadav JS, Vani CD, Chowdeswari M, Ananthalakshmi K, Bhasker N, Reddy BVS. First Stereoselective Total Synthesis of (3 S,7R)-De- O-methylbotryosphaeriodiplodin. Nat Prod Commun 2019. [DOI: 10.1177/1934578x1901400136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
A simple and highly efficient first stereoselective total synthesis of a benzofused macrocyclic lactone, ( 3S,7R)-de- O-methylbotryosphaeriodiplodin has been accomplished utilizing Jacobson's kinetic resolution, Marouka asymmetric allylation, Stille coupling, and ring-closing metathesis (RCM) reactions as key steps.
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Affiliation(s)
- Jhillu S. Yadav
- Natural Product Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 607, India
| | - Chitteti Divya Vani
- Natural Product Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 607, India
| | - Mule Chowdeswari
- Natural Product Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 607, India
| | - K. Ananthalakshmi
- Natural Product Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 607, India
| | - N. Bhasker
- Natural Product Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 607, India
| | - Basi V. Subba Reddy
- Natural Product Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 607, India
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10
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Gaddam J, Reddy GS, Marumudi K, Kunwar AC, Yadav JS, Mohapatra DK. Total synthesis and stereochemical revision of relgro and 10′-oxorelgro. Org Biomol Chem 2019; 17:5601-5614. [DOI: 10.1039/c9ob00838a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first total synthesis and correct stereochemical assignments of relgro (6′S,10′S)-configuration and 10′-oxorelgro with (6′S)-configuration are described.
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Affiliation(s)
- Janardhan Gaddam
- Department of Organic Synthesis and Process Chemistry
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - G. Sudhakar Reddy
- Department of Organic Synthesis and Process Chemistry
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Kanakaraju Marumudi
- Centre for NMR and Structural Chemistry
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
| | - Ajit C. Kunwar
- Centre for NMR and Structural Chemistry
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
| | | | - Debendra K. Mohapatra
- Department of Organic Synthesis and Process Chemistry
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
- Academy of Scientific and Innovative Research (AcSIR)
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11
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Affiliation(s)
- Uma Maheshwar Gonela
- Natural Products Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad, India
| | - Suresh Kanikarapu
- Natural Products Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad, India
| | - Jhillu S. Yadav
- Natural Products Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad, India
- School of Science, Indrashil University, Kadi, India
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12
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Rangaraju SK, Gonela UM, Kavita A, Yadav JS, Mohapatra DK. Front Cover: Synergistic Gold and Copper Dual Catalysis for Intramolecular Glaser-Hay Coupling: Rapid Total Synthesis of Ivorenolide B (Eur. J. Org. Chem. 32/2018). European J Org Chem 2018. [DOI: 10.1002/ejoc.201801000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
| | | | - Aala Kavita
- CSIR-Indian Institute of Chemical Technology; -500007 Hyderabad India
| | - Jhillu S. Yadav
- CSIR-Indian Institute of Chemical Technology; -500007 Hyderabad India
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13
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Maheshwar Rao B, Yadav JS, Sridhar B, Subba Reddy BV. Silver(i)-catalyzed sequential hydroamination and Prins type cyclization for the synthesis of fused benzo-δ-sultams. Org Biomol Chem 2018; 16:5163-5166. [PMID: 29964283 DOI: 10.1039/c8ob00918j] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
An intramolecular annulation strategy has been developed for the synthesis of tetrahydrobenzo[e]pyrano[4,3-c][1,2]thiazine derivatives by means of coupling of aldehydes with 2-(4-hydroxybut-1-yn-1-yl)-N-arylsulfonamides using a catalytic amount of silver hexafluoroantimonate in toluene at 80 °C. This is the first report on the synthesis of fused benzo-δ-sultam derivatives through C-N, C-O, and C-C bond formations. The reaction proceeds through a cascade of hydroamination and Prins type cyclization.
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Affiliation(s)
- B Maheshwar Rao
- Centre for Semiochemicals, CSIR-Indian Institute of Chemical Technology, Hyderabad-500 007, India.
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14
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Paramanik M, Panja S, Dhami PS, Yadav JS, Kaushik CP, Ghosh SK. Unique reversibility in extraction mechanism of U compared to solvent extraction for sorption of U(VI) and Pu(IV) by a novel solvent impregnated resin containing trialkyl phosphine oxide functionalized ionic liquid. J Hazard Mater 2018; 354:125-132. [PMID: 29742483 DOI: 10.1016/j.jhazmat.2018.05.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Revised: 05/01/2018] [Accepted: 05/02/2018] [Indexed: 06/08/2023]
Abstract
Novel Solvent Impregnated Resin (SIR) material was prepared by impregnating a trialkyl phosphine oxide functionalized ionic liquid (IL) into an inert polymeric material XAD-7. A series of SIR materials were prepared by varying the IL quantity. Sorption of both U(VI) and Pu(IV) were found to increase with increasing IL concentration in SIR up to an optimum IL concentration of 435 mg g-1 of SIR beyond which no effect of IL concentration was observed. A change of mechanism of sorption for U(VI) by SIR was observed in comparison to solvent extraction. The dependency of U(VI) sorption with nitric acid concentration showed a reverse trend compared to solvent extraction studies while for Pu(IV) the trend remained same as observed with solvent extraction. Sorption of both the radionuclides was found to follow pseudo second order mechanism and Langmuir adsorption isotherm. Distribution co-efficient measurements on IL impregnated SIR showed highly selective sorption of U(VI) and Pu(IV) over other trivalent f-elements and fission products from nitric acid medium.
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Affiliation(s)
- M Paramanik
- Food Technology Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
| | - S Panja
- Fuel Reprocessing Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India.
| | - P S Dhami
- Fuel Reprocessing Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
| | - J S Yadav
- Fuel Reprocessing Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
| | - C P Kaushik
- Waste Management Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
| | - S K Ghosh
- Food Technology Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India.
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15
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Rangaraju SK, Gonela UM, Kavita A, Yadav JS, Mohapatra DK. Synergistic Gold and Copper Dual Catalysis for Intramolecular Glaser-Hay Coupling: Rapid Total Synthesis of Ivorenolide B. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800708] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
| | | | - Aala Kavita
- CSIR-Indian Institute of Chemical Technology; -500007 Hyderabad India
| | - Jhillu S. Yadav
- CSIR-Indian Institute of Chemical Technology; -500007 Hyderabad India
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16
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Deb AKS, Pahan S, Dasgupta K, Panja S, Debnath AK, Dhami PS, Ali SM, Kaushik CP, Yadav JS. Carbon nano tubes functionalized with novel functional group- amido-amine for sorption of actinides. J Hazard Mater 2018; 345:63-75. [PMID: 29128727 DOI: 10.1016/j.jhazmat.2017.11.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Revised: 10/23/2017] [Accepted: 11/01/2017] [Indexed: 06/07/2023]
Abstract
The manuscript presents the results on the sorption of U(VI), Am(III) & Eu(III) from pH medium by a novel amido-amine functionalized multiwalled carbon nanotube (MWCNT). The novel functional group was introduced in the MWCNT by two step processes and characterized by various instrumental techniques like Scanning Electron Microscopy (SEM), Raman and X-ray Photoelectron Spectroscopy (XPS). The sorption process was found to be highly dependent on the pH of the solution with maximum sorption for both 233U, 241Am & 152+154Eu at pH 7.0. Kinetics of sorption was found to be fast with equilibrium reached in ∼15min and the sorption was found to be following pseudo 2nd order kinetics for the radionuclides. The sorption for both 233U and 152+154Eu followed Langmuir sorption model with maximum sorption capacity of 20.66mg/g and 16.1mg/g respectively. This has been explained by DFT calculations which shows that more negative solvation energy of U(VI) compared to Am(III) and Eu(III) and stronger U-MWCNT-AA complex is responsible for higher sorption capacity of U(VI) compared to Am(III) and Eu(III).The synthesized amido-amine functionalized MWCNT is a very promising candidate for removal of actinides and lanthanides from waste water solution with high efficiency.
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Affiliation(s)
- A K Singh Deb
- Chemical Engineering Division, Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - S Pahan
- Process Development Division, Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - K Dasgupta
- Materials Group, Atomic Research Centre, Trombay,Mumbai, 400085, India
| | - S Panja
- Fuel Reprocessing Division, Atomic Research Centre, Trombay, Mumbai, 400085, India.
| | - A K Debnath
- Technical Physics Division, Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - P S Dhami
- Fuel Reprocessing Division, Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - Sk M Ali
- Chemical Engineering Division, Atomic Research Centre, Trombay, Mumbai, 400085, India.
| | - C P Kaushik
- Waste Management Division Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India.
| | - J S Yadav
- Fuel Reprocessing Division, Atomic Research Centre, Trombay, Mumbai, 400085, India
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17
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Affiliation(s)
| | - Alleni Suman Kumar
- Center for Semiochemicals; CSIR- Indian Institute of Chemical Technology; Hyderabad− 500007 India
| | - Katta Muralikrishna
- Center for Semiochemicals; CSIR- Indian Institute of Chemical Technology; Hyderabad− 500007 India
| | | | - Sudheer Kumar R
- Center for Semiochemicals; CSIR- Indian Institute of Chemical Technology; Hyderabad− 500007 India
| | | | - Jhillu S. Yadav
- Center for Semiochemicals; CSIR- Indian Institute of Chemical Technology; Hyderabad− 500007 India
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18
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Kummari VB, Yadav JS, Kankaraju M, Reddy BVS. Tandem Prins Spirocyclization for the Synthesis of 1,8-Dioxaspiro[4.5]decane and 1,9-Dioxaspiro[5.5]undecane Scaffolds. ChemistrySelect 2017. [DOI: 10.1002/slct.201702163] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Vijaya Babu Kummari
- Centre for Semiochemicals; CSIR-Indian Institute of Chemical Technology; Hyderabad - 500 007 India
| | - Jhillu S. Yadav
- Centre for Semiochemicals; CSIR-Indian Institute of Chemical Technology; Hyderabad - 500 007 India
| | - Marumudi Kankaraju
- Centre for Nuclear Magnetic Resonance; CSIR-Indian Institute of Chemical Technology; Hyderabad - 500 007 India
| | - Basi V. Subba Reddy
- Centre for Semiochemicals; CSIR-Indian Institute of Chemical Technology; Hyderabad - 500 007 India
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19
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Kanikarapu S, Marumudi K, Kunwar AC, Yadav JS, Mohapatra DK. Total Synthesis and Stereochemical Revision of 4,8-Dihydroxy-3,4-dihydrovernoniyne. Org Lett 2017; 19:4167-4170. [DOI: 10.1021/acs.orglett.7b01620] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Suresh Kanikarapu
- Natural
Products Chemistry Division and ‡Centre for NMR and Structural Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Kanakaraju Marumudi
- Natural
Products Chemistry Division and ‡Centre for NMR and Structural Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Ajit C. Kunwar
- Natural
Products Chemistry Division and ‡Centre for NMR and Structural Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Jhillu S. Yadav
- Natural
Products Chemistry Division and ‡Centre for NMR and Structural Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Debendra K. Mohapatra
- Natural
Products Chemistry Division and ‡Centre for NMR and Structural Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
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Maity S, Kanikarapu S, Marumudi K, Kunwar AC, Yadav JS, Mohapatra DK. Asymmetric Total Synthesis of the Putative Structure of Diplopyrone. J Org Chem 2017; 82:4561-4568. [DOI: 10.1021/acs.joc.7b00086] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Saurabh Maity
- Academy of Scientific and Innovative Research (AcSIR), Mathura Road, New Delhi 110 025, India
| | | | | | | | - Jhillu S. Yadav
- Academy of Scientific and Innovative Research (AcSIR), Mathura Road, New Delhi 110 025, India
| | - Debendra K. Mohapatra
- Academy of Scientific and Innovative Research (AcSIR), Mathura Road, New Delhi 110 025, India
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21
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Srilatha A, Yadav JS, Reddy BVS. A Convergent Total Synthesis of Balticolid. Nat Prod Commun 2017. [DOI: 10.1177/1934578x1701200430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
A convergent total synthesis of the 12 membered macrolide, Balticolid (1) is described, starting from readily available homoallylic alcohol and 1,3 propane diol. The synthetic strategy involves the construction of the 12-membered lactone.
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Affiliation(s)
- Avuluri Srilatha
- Natural Product Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad-500 007, India
| | - Jhillu S. Yadav
- Natural Product Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad-500 007, India
| | - Basi V. Subba Reddy
- Natural Product Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad-500 007, India
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22
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Srilatha A, Yadav JS, Reddy BVS. A Convergent Total Synthesis of Balticolid. Nat Prod Commun 2017; 12:587-594. [PMID: 30520602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023] Open
Abstract
A convergent total synthesis of the 12 membered macrolide, Balticolid (1) is described, starting from readily available homoallylic alcohol and 1,3 propane diol The synthetic strategy involves the construction of the 12-membered lactone.
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Yadav JS, Amrutapu SK, Pabbaraja S. Studies Towards the Synthesis of Stereoisomer of Acremolide B. ChemistrySelect 2017. [DOI: 10.1002/slct.201700007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Jhillu S. Yadav
- Academy of Scientific and Innovative Research (AcSIR), Anusandhan Bhawan; 2 Rafi Marg New Delhi 110001 India
- Division of Natural Products Chemistry; CSIR - Indian Institute of Chemical Technology; Hyderabad 500007 India
| | - Sravanth Kumar Amrutapu
- Academy of Scientific and Innovative Research (AcSIR), Anusandhan Bhawan; 2 Rafi Marg New Delhi 110001 India
- Division of Natural Products Chemistry; CSIR - Indian Institute of Chemical Technology; Hyderabad 500007 India
| | - Srihari Pabbaraja
- Division of Natural Products Chemistry; CSIR - Indian Institute of Chemical Technology; Hyderabad 500007 India
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25
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Reddy RG, Venkateshwarlu R, Ramakrishna KVS, Yadav JS, Mohapatra DK. Asymmetric Total Syntheses of Two Possible Diastereomers of Gliomasolide E and Its Structural Elucidation. J Org Chem 2017; 82:1053-1063. [DOI: 10.1021/acs.joc.6b02611] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Ramidi Gopal Reddy
- Academy of Scientific and Innovative Research (AcSIR), Mathura Road, New Delhi 110 025, India
| | | | | | - Jhillu S. Yadav
- Academy of Scientific and Innovative Research (AcSIR), Mathura Road, New Delhi 110 025, India
| | - Debendra K. Mohapatra
- Academy of Scientific and Innovative Research (AcSIR), Mathura Road, New Delhi 110 025, India
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26
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Affiliation(s)
- Jhillu S. Yadav
- Natural Product Chemistry; CSIR-Indian Institute of Chemical Technology; Hyderabad 500 007 India
| | - Yerragorla Gopalarao
- Natural Product Chemistry; CSIR-Indian Institute of Chemical Technology; Hyderabad 500 007 India
| | - Dandekar Chandrakanth
- Natural Product Chemistry; CSIR-Indian Institute of Chemical Technology; Hyderabad 500 007 India
| | - Basi V. Subba Reddy
- Natural Product Chemistry; CSIR-Indian Institute of Chemical Technology; Hyderabad 500 007 India
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Affiliation(s)
- Jhillu S. Yadav
- Academy
of Scientific and
Innovative Research, Division of Natural Products Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad-500007, India
| | - Palash Dutta
- Academy
of Scientific and
Innovative Research, Division of Natural Products Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad-500007, India
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Mohapatra DK, Pulluri K, Gajula S, Yadav JS. 13-Step total synthesis of Dendrodolide K following iterative Bartlett–Smith iodocarbonate cyclization. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.09.126] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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29
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Reddy TL, Krishnarao PS, Rao GK, Bhimireddy E, Venkateswarlu P, Mohapatra DK, Yadav JS, Bhadra U, Bhadra MP. Para amino benzoic acid-derived self-assembled biocompatible nanoparticles for efficient delivery of siRNA. Int J Nanomedicine 2015; 10:6411-23. [PMID: 26491299 PMCID: PMC4608593 DOI: 10.2147/ijn.s86238] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
Abstract
A number of diseases can result from abnormal gene expression. One of the approaches for treating such diseases is gene therapy to inhibit expression of a particular gene in a specific cell population by RNA interference. Use of efficient delivery vehicles increases the safety and success of gene therapy. Here we report the development of functionalized biocompatible fluorescent nanoparticles from para amino benzoic acid nanoparticles for efficient delivery of short interfering RNA (siRNA). These nanoparticles were non-toxic and did not interfere with progression of the cell cycle. The intrinsic fluorescent nature of these nanoparticles allows easy tracking and an opportunity for diagnostic applications. Human Bcl-2 siRNA was complexed with these nanoparticles to inhibit expression in cells at both the transcriptional and translational levels. Our findings indicated high gene transfection efficiency. These biocompatible nanoparticles allow targeted delivery of siRNA, providing an efficient vehicle for gene delivery.
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Affiliation(s)
- Teegala Lakshminarayan Reddy
- Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad, India ; Academy of Scientific and Innovative Research, New Delhi, India
| | - P Sivarama Krishnarao
- Natural Products Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad, India
| | - Garikapati Koteswara Rao
- Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad, India ; Academy of Scientific and Innovative Research, New Delhi, India
| | - Eswar Bhimireddy
- Natural Products Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad, India
| | - P Venkateswarlu
- Department of Chemistry, Sri Venkateswara University, Tirpupati, India
| | - Debendra K Mohapatra
- Natural Products Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad, India ; Academy of Scientific and Innovative Research, New Delhi, India
| | - J S Yadav
- Natural Products Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad, India
| | - Utpal Bhadra
- Functional Genomics and Gene Silencing Group, CSIR-Indian Institute of Chemical Technology, CSIR-Centre for Cellular and Molecular Biology, Hyderabad, India
| | - Manika Pal Bhadra
- Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad, India ; Academy of Scientific and Innovative Research, New Delhi, India
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Yadav JS, Dutta P, Ganganna B, Srinivas E. Total Synthesis and Structural Reassignment of the γ-Lactone Polyketide fromDiaporthesp. SXZ-19. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500811] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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31
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Subba Reddy BV, Rajashekhar Reddy M, Yarlagadda S, Ravikumar Reddy C, Ravi Kumar G, Yadav JS, Sridhar B. Cooperative Multicatalytic System for the One-Pot Synthesis of Octahydrospiro-β-carbolines. J Org Chem 2015; 80:8807-14. [PMID: 26252740 DOI: 10.1021/acs.joc.5b01108] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A domino cyclization of 3-((3-(2-aminophenyl)prop-2-ynylamino)methyl)but-3-en-1-ol with aldehydes has been accomplished employing 5 mol % of the Ph3PAuCl/AgSbF6/In(OTf)3 system to afford the corresponding octahydrospiro[pyran-4,4'-pyrido[3,4-b]indole] derivatives in good yields with high selectivity. This is the first report on the synthesis of spiro-β-carbolines through a multicatalytic cascade process.
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Affiliation(s)
- B V Subba Reddy
- Natural Product Chemistry, ‡Laboratory of X-ray Crystallography, CSIR-Indian Institute of Chemical Technology , Hyderabad - 500 007, India
| | - M Rajashekhar Reddy
- Natural Product Chemistry, ‡Laboratory of X-ray Crystallography, CSIR-Indian Institute of Chemical Technology , Hyderabad - 500 007, India
| | - Suresh Yarlagadda
- Natural Product Chemistry, ‡Laboratory of X-ray Crystallography, CSIR-Indian Institute of Chemical Technology , Hyderabad - 500 007, India
| | - C Ravikumar Reddy
- Natural Product Chemistry, ‡Laboratory of X-ray Crystallography, CSIR-Indian Institute of Chemical Technology , Hyderabad - 500 007, India
| | - G Ravi Kumar
- Natural Product Chemistry, ‡Laboratory of X-ray Crystallography, CSIR-Indian Institute of Chemical Technology , Hyderabad - 500 007, India
| | - J S Yadav
- Natural Product Chemistry, ‡Laboratory of X-ray Crystallography, CSIR-Indian Institute of Chemical Technology , Hyderabad - 500 007, India
| | - B Sridhar
- Natural Product Chemistry, ‡Laboratory of X-ray Crystallography, CSIR-Indian Institute of Chemical Technology , Hyderabad - 500 007, India
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Mohapatra DK, Reddy DS, Reddy GS, Yadav JS. Synthesis of the C-8-C-24 Fragment of Maltepolide C by Using a Tandem Dihydroxylation/SN2 Cyclization Sequence. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500629] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Mohapatra DK, Umamaheshwar G, Rao RN, Rao TS, R SK, Yadav JS. Total Synthesis of Ivorenolide A Following a Base-Induced Elimination Protocol. Org Lett 2015; 17:979-81. [DOI: 10.1021/acs.orglett.5b00138] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Debendra K. Mohapatra
- Natural Products Chemistry
Division, CSIR-Indian Institute of Chemical Technology, Hyderabad-500007, India
| | - Gonela Umamaheshwar
- Natural Products Chemistry
Division, CSIR-Indian Institute of Chemical Technology, Hyderabad-500007, India
| | - R. Nageshwar Rao
- Natural Products Chemistry
Division, CSIR-Indian Institute of Chemical Technology, Hyderabad-500007, India
| | - T. Srinivasa Rao
- Natural Products Chemistry
Division, CSIR-Indian Institute of Chemical Technology, Hyderabad-500007, India
| | - Sudheer Kumar R
- Natural Products Chemistry
Division, CSIR-Indian Institute of Chemical Technology, Hyderabad-500007, India
| | - Jhillu S. Yadav
- Natural Products Chemistry
Division, CSIR-Indian Institute of Chemical Technology, Hyderabad-500007, India
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Yadav JS, Ganganna B, Dutta P, Singarapu KK. Synthesis and determination of absolute configuration of α-pyrones isolated from Penicillium corylophilum. J Org Chem 2014; 79:10762-71. [PMID: 25337961 DOI: 10.1021/jo5015382] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The first total synthesis of (S)-6-(2,9-dihydroxynonyl)-4-hydroxy-3-methyl-2H-pyran-2-one, 4-hydroxy-3-methyl-6-((2S,4R)-2,4,11-trihydroxyundecyl)-2H-pyran-2-one, and its unnatural 2R,4R-isomer starting from commercially available 1,8-octanediol is described. The synthesis led to the revision of the proposed structural assignment of the natural product as (R)-6-(2,9-dihydroxynonyl)-4-hydroxy-3-methyl-2H-pyran-2-one. The key steps include chiral auxiliary mediated asymmetric acetate aldol reaction, dianion addition, and base mediated cyclization to form an α-pyrone ring.
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Affiliation(s)
- J S Yadav
- Academy of Scientific and Innovative Research, ‡Division of Natural Products Chemistry, CSIR-Indian Institute of Chemical Technology , Hyderabad-500007, India
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Subba Reddy BV, Srinivas L, Sivaramakrishna Reddy P, Phaneendra Reddy B, Prasad AR, Yadav JS. A New Stereoselective Total Synthesis of Phomonol. Helv Chim Acta 2014. [DOI: 10.1002/hlca.201300458] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Mohapatra DK, Reddy DS, Mallampudi NA, Yadav JS. Stereoselective Total Syntheses of Paecilomycins E and F through a Protecting Group Directed Diastereoselective Intermolecular Nozaki-Hiyama-Kishi (NHK) Reaction. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402133] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Yadav JS, Mallikarjuna Reddy N, Ataur Rahman M, Mallikarjuna Reddy A, Prasad AR. Stereoselective Total Synthesis of Botryolide E and Ophiocerin C. Helv Chim Acta 2014. [DOI: 10.1002/hlca.201300203] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Yadav JS, Singh VK, Srihari P. Formation of substituted tetrahydropyrans through oxetane ring opening: application to the synthesis of C1-C17 fragment of salinomycin. Org Lett 2014; 16:836-9. [PMID: 24479786 DOI: 10.1021/ol403604u] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The stereoselective synthesis of C1-C17 fragment of salinomycin is achieved. The strategy employs a desymmetrization approach and utilizes an intramolecular oxetane opening reaction with O-nucleophile to result in the tetrahydropyran skeleton as the key step.
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Affiliation(s)
- J S Yadav
- Academy of Scientific and Innovative Research, ‡Division of Natural Products Chemistry, CSIR-Indian Institute of Chemical Technology , Hyderabad-500007, India
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Mohapatra DK, Reddy DS, Ramaiah MJ, Ghosh S, Pothula V, Lunavath S, Thomas S, Valli SNCVLP, Bhadra MP, Yadav JS. Rugulactone derivatives act as inhibitors of NF-κB activation and modulates the transcription of NF-κB dependent genes in MDA-MB-231cells. Bioorg Med Chem Lett 2014; 24:1389-96. [PMID: 24508135 DOI: 10.1016/j.bmcl.2014.01.030] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2013] [Revised: 12/20/2013] [Accepted: 01/11/2014] [Indexed: 02/06/2023]
Abstract
Rugulactone and its analogues were synthesized following Horners-Wadsworth-Emmons and ring-closing metathesis as the key reactions. A library of new rugulactone analogues were designed, synthesized and evaluated for their anticancer activity in breast cancer cells. All analogues have shown anti-proliferative activity, while some of them exhibited significant cytotoxicity. In assays related to cell-cycle distribution, these conjugates induced G1 cell-cycle arrest in MDA-MB-231 cells. The cell cycle arrest nature was further confirmed by examining the effect on Cyclin E and Cdk2 proteins that acts at G1-S phase transition. Immunocytochemistry assay revealed that these compounds inhibited nuclear translocation of NF-κB protein, thereby activation of NF-κB was inhibited. The expression of NF-κB target genes such as Cyclin D1 and Bcl-xL were severely affected. Apart from acting on NF-κB, these compounds also regulate class I Histone deacetylase proteins such as (HDAC-3 and 8) that have a crucial and regulatory role in cell-proliferation. Simultaneously, the apoptotic inducing nature of these compounds was confirmed by activation of PARP protein, a protein that plays a key role in DNA damage and repair pathways. Among all compounds of this series 3g is the most potent compound and can be used for further studies.
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Affiliation(s)
- Debendra K Mohapatra
- Natural Products Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India.
| | - D Sai Reddy
- Natural Products Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - M Janaki Ramaiah
- Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Sowjanya Ghosh
- Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Vikram Pothula
- Natural Products Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Swetha Lunavath
- Natural Products Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Shine Thomas
- Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - S N C V L Pushpa Valli
- Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Manika Pal Bhadra
- Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Jhillu S Yadav
- Natural Products Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India.
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Subba Reddy BV, Anusha B, Subba Reddy UV, Yadav JS, Suresh Reddy C. A Concise and Convergent Total Synthesis of Two Novel Cytotoxic Hydroquinones, Lanneaquinol and (R)-2′-Hydroxylanneaquinol. Helv Chim Acta 2013. [DOI: 10.1002/hlca.201300066] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Yadav JS, Yadav NN, Gupta MK, Srivastava N, Subba Reddy BV. GaCl3-catalyzed activation of alkynyl glycosides for the synthesis of O-glycosides. Monatsh Chem 2013. [DOI: 10.1007/s00706-013-1091-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Sabitha G, Shankaraiah K, Yadav JS. Tandem Ring-Closing/Cross-Metathesis Approach for the Synthesis of Synargentolide B and Its Stereoisomers. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300434] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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