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Kumar G, Pandey DM, Ghosh M, Dall'Acqua S, Gupta R, Tiwari NP, Siddique UM, Vishwakrama L, Guleri SK, Lal UR, Dubey S. Karanjin, A Promising Bioactive Compound Possessing Anti-cancer Activity against Experimental Model of Non-small Cell Lung Cancer Cells. Anticancer Agents Med Chem 2024; 24:317-333. [PMID: 37936467 DOI: 10.2174/0118715206255557231024095245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 09/07/2023] [Accepted: 09/25/2023] [Indexed: 11/09/2023]
Abstract
AIMS The aim of this study is to isolate the Millettia pinnata (Karanj) leaf extract for pure compound with anticancer properties and to study the molecular target of the isolates in non-small cell lung cancer cell lines. BACKGROUND In our earlier research Millettia pinnata leaf extract has demonstrated potential anticancer activities. Thus, in pursuit of the bioactive compounds, the most potential active extract from our previous study was purified. Furthermore, the anticancer properties of the isolated compound karanjin was studied and aimed for apoptosis and restraining growth. METHODS A novel method was developed through column chromatography for isolation and purification of the compound karanjin from leaf chloroform extract. The purified component was then characterised using FTIR, mass spectrometry, and NMR. An MTT-based cytotoxicity assay was used to analyse cell cytotoxicity, whereas fluorescence staining was used for apoptosis and reactive oxygen species inhibition quantification. Furthermore, the real-time PCR assay was used to determine the molecular mechanism of action in cells causing cytotoxicity induced by karanjin dosing. RESULTS The anticancer activity of karanjin in A549 cell line exhibited prominent activity revealing IC50 value of 4.85 μM. Conferring the predicted molecular pathway study, karanjin restrains the proliferation of cancer cells through apoptosis, which is controlled by extrinsic pathway proteins FAS/FADD/Caspases 8/3/9. Downregulation of KRAS and dependent gene expression also stopped cell proliferation. CONCLUSION Karanjin has been identified as a compound with potential effect in non-small cell lung cancer cells. Molecular mechanism for apoptosis and inhibition of reactive oxygen species induced through H2O2 were observed, concluding karanjin have medicinal and antioxidant properties.
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Affiliation(s)
- Gourav Kumar
- Department of Bioengineering and Biotechnology, Birla Institute of Technology, Mesra, Ranchi, India
- Birsa Munda Government Medical College, Shahdol, India
- Department of Pharmaceutical and Pharmacological Science, University of Padova, Italy
| | - Dev Mani Pandey
- Department of Bioengineering and Biotechnology, Birla Institute of Technology, Mesra, Ranchi, India
| | - Manik Ghosh
- Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Mesra, Ranchi, India
| | - Stefano Dall'Acqua
- Department of Pharmaceutical and Pharmacological Science, University of Padova, Italy
| | - Rashmi Gupta
- Department of Bioengineering and Biotechnology, Birla Institute of Technology, Mesra, Ranchi, India
- Department of Pharmaceutical and Pharmacological Science, University of Padova, Italy
| | - Nishi Prakash Tiwari
- Department of Bioengineering and Biotechnology, Birla Institute of Technology, Mesra, Ranchi, India
| | - Usman Mohd Siddique
- Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Mesra, Ranchi, India
| | | | | | - Uma Ranjan Lal
- Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Mesra, Ranchi, India
- Department of Natural Products, NIPER Ahmedabad, India
| | - Supriya Dubey
- Department of Chemistry, Kanya Gurukul Campus, Gurukul Kangri (Deemed to be University), Haridwar, India
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High-performance flash chromatography on fine-grained silica gel. Russ Chem Bull 2022. [DOI: 10.1007/s11172-022-3523-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Hosseini K, Jasori S, Delazar A, Asgharian P, Tarhriz V. Phytochemical analysis and anticancer activity of Falcaria vulgaris Bernh growing in Moghan plain, northwest of Iran. BMC Complement Med Ther 2021; 21:294. [PMID: 34865625 PMCID: PMC8645078 DOI: 10.1186/s12906-021-03464-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Accepted: 11/16/2021] [Indexed: 01/04/2023] Open
Abstract
Background Falcaria vulgaris Bernh among the most important member of Apiaceae family has been used for medical investigation in Iran and some regions in the world. This plant possesses a range of coumarin and flavonoids compounds that have many therapeutic properties such as gastrointestinal and liver diseases, skin ulcers, gastric ulcers, and intestinal inflammation. It has also been found that these compounds lead to cytotoxic effects. Objective This study contains concentrates on the cytotoxic effect and induction of apoptosis on cancerous cells (SW-872) through various extracts and essential oil of Falcaria vulgaris Bernh. It considers the volatile compounds of effective samples. Methods The shoot of the plant was extracted by the Soxhlet apparatus and its essential oil was taken by the Clevenger apparatus. The cytotoxicity of the samples was evaluated by the MTT method and the mechanism of cancer cell death by flow cytometry and finally, the volatile compounds of essential oils and effective extracts were identified by GC-MS. Results The results demonstrated that n-Hexane extract and 40% VLC fraction had the greatest cytotoxic effect on SW-872 cells. While, the most abundant volatile compounds in essential oil and 40% VLC fraction of n-Hexane extract were terpenoid compounds like (+) spathulenol and caryophyllene oxide, in n-Hexane extract tetradecan, and spathulenol were the most, respectively. Conclusion The fraction of 40% n-Hexane was in a concentration-dependent manner and significantly with controlling cells inhibited the growth of cancer cells. A plausible explanation could be made to account for this effect. This inhibition was made through induction of apoptosis and due to the presence of effective volatile compounds such as terpenoids and non-terpenoids which could be considered as valuable natural sources for the isolation of anti-cancer compounds.
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Affiliation(s)
- Kamran Hosseini
- Molecular Medicine Research Center, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Molecular Medicine, Faculty of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Sanaz Jasori
- Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Abbas Delazar
- Drug Applied research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Pharmacognosy, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Parina Asgharian
- Drug Applied research Center, Tabriz University of Medical Sciences, Tabriz, Iran. .,Department of Pharmacognosy, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Vahideh Tarhriz
- Molecular Medicine Research Center, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran.
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Mroczek T, Dymek A, Widelski J, Wojtanowski KK. The Bioassay-Guided Fractionation and Identification of Potent Acetylcholinesterase Inhibitors from Narcissus c.v. 'Hawera' Using Optimized Vacuum Liquid Chromatography, High Resolution Mass Spectrometry and Bioautography. Metabolites 2020; 10:metabo10100395. [PMID: 33020380 PMCID: PMC7599570 DOI: 10.3390/metabo10100395] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 09/18/2020] [Accepted: 10/01/2020] [Indexed: 12/20/2022] Open
Abstract
Bioassay-guided isolation of bioactive compound is a modern and efficient technique in metabolites screening. It may shorten the total time of the entire process and reduce some costs of it. The aim of this paper was to fractionate and isolate alkaloids by developing an innovative vacuum liquid chromatography method for a species of Narcissus c.v. ‘Hawera’ rarely investigated so far and establishing the inhibitory activity of acetylcholinesterase (AChE). The studies consisted of the extraction of plant material by modern pressurized liquid extraction (PLE), followed by the isolation of alkaloidal fractions. For this purpose, the pioneering gradient vacuum liquid chromatography (gVLC) technique was employed by using two sorbents in various proportions packed in polypropylene cartridges for the first time. This step was performed in order to pre-clean the samples but also to establish the best combination of sorbents which permits obtaining potentially strong AChE inhibitors. The collected fractions were examined by HPLC/ESI-QTOF-MS in order to compare which combination of sorbents would allow us to obtain the highest concentration of alkaloids. The combination of these techniques confirmed the presence of the alkaloids and enabled the development of a modern method for the fractionation and isolation of the compounds with strong anti-AChE activity.
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N-oxide alkaloids from Crinum amabile (Amaryllidaceae). Molecules 2018; 23:molecules23061277. [PMID: 29861456 PMCID: PMC6099558 DOI: 10.3390/molecules23061277] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Revised: 05/23/2018] [Accepted: 05/24/2018] [Indexed: 11/17/2022] Open
Abstract
Natural products play an important role in the development of new drugs. In this context, the Amaryllidaceae alkaloids have attracted considerable attention in view of their unique structural features and various biological activities. In this study, twenty-three alkaloids were identified from Crinum amabile by GC-MS and two new structures (augustine N-oxide and buphanisine N-oxide) were structurally elucidated by NMR. Anti-parasitic and cholinesterase (AChE and BuChE) inhibitory activities of six alkaloids isolated from this species, including the two new compounds, are described herein. None of the alkaloids isolated from C. amabile gave better results than the reference drugs, so it was possible to conclude that the N-oxide group does not increase their therapeutic potential.
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Mohamed-Benkada M, François Pouchus Y, Vérité P, Pagniez F, Caroff N, Ruiz N. Identification and Biological Activities of Long-Chain Peptaibols Produced by a Marine-Derived Strain ofTrichoderma longibrachiatum. Chem Biodivers 2016; 13:521-30. [DOI: 10.1002/cbdv.201500159] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2015] [Accepted: 12/11/2015] [Indexed: 11/09/2022]
Affiliation(s)
- Mustapha Mohamed-Benkada
- Département de Biotechnologie; Faculté des Sciences de la Nature et de la Vie; Université des Sciences et de la Technologie d'Oran-Mohamed Boudiaf (USTO-MB); El Mnaouar, B.P. 1505 Bir El Djir 31000 Oran Algeria
| | | | - Philippe Vérité
- Laboratoire de Chimie Analytique; Faculté de Médecine et Pharmacie; Université de Rouen; FR-76000 Rouen
| | - Fabrice Pagniez
- Laboratoire de Parasitologie et Mycologie Médicale, IICiMed; Faculté de Pharmacie; Université de Nantes; FR-44000 Nantes
| | - Nathalie Caroff
- Laboratoire Thérapeutiques Cliniques et Expérimentales des Infections; Faculté de Médecine; Université de Nantes; FR-44000 Nantes
| | - Nicolas Ruiz
- Faculté de Pharmacie, MMS; Université de Nantes; FR-44000 Nantes
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Cui PH, Duke RK, Duke CC. Monoepoxy octadecadienoates and monoepoxy octadecatrienoates. Chem Phys Lipids 2008; 152:122-30. [DOI: 10.1016/j.chemphyslip.2008.02.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2007] [Revised: 02/14/2008] [Accepted: 02/18/2008] [Indexed: 11/16/2022]
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8
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Huh DH, Jeong JS, Lee HB, Ryu H, Kim YG. An efficient method for one-carbon elongation of aryl aldehydes via their dibromoalkene derivatives. Tetrahedron 2002. [DOI: 10.1016/s0040-4020(02)01324-8] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Cuesta-Rubio O, Velez-Castro H, Frontana-Uribe BA, Cardenas J. Nemorosone, the major constituent of floral resins of Clusia rosea. PHYTOCHEMISTRY 2001; 57:279-283. [PMID: 11382245 DOI: 10.1016/s0031-9422(00)00510-0] [Citation(s) in RCA: 75] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Nemorosone, the major constituent of the floral resin of Clusia rosea was isolated after exhaustive chromatography. This compound was fully characterized as it is in the nature, without methylation as reported before. A keto-enol equilibrium was observed and both isomers were totally characterized by NMR spectroscopic techniques. The previously announced structure for methylnemorosone was corrected on the basis of application of chemical methylation, high field 2D NMR techniques and NOE difference spectroscopy experiments on the natural product. Our studies concluded that an interchange occurred in the assignment of the benzoyl moiety position with an isoprenyl group in that structure.
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Affiliation(s)
- O Cuesta-Rubio
- Instituto de Farmacia y Alimentos, Universidad de la Habana, Cuba
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Xu HS, Hu LM, Liu ZJ, Peng YS, Guo ZQ. SYNTHESIS OF 2-ETHOXY CARBONYL PHENYLSELENO AMINOMETHYLENE PHOSPHONATE. PHOSPHORUS SULFUR 2000. [DOI: 10.1080/10426500008046621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Han-Sheng Xu
- a College of Chemistry and Environment Science, Wuhan University , Wuhan, 430072, P R. China
| | - Li-Ming Hu
- a College of Chemistry and Environment Science, Wuhan University , Wuhan, 430072, P R. China
| | - Zhao-Jie Liu
- b Institute of Organic Synthesis, Central China Normal University , Wuhan, 430079, P.R. China
| | - Yun-Shan Peng
- a College of Chemistry and Environment Science, Wuhan University , Wuhan, 430072, P R. China
| | - Zhen-Qiu Guo
- a College of Chemistry and Environment Science, Wuhan University , Wuhan, 430072, P R. China
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Kobaisy M, Abramowski Z, Lermer L, Saxena G, Hancock RE, Towers GH, Doxsee D, Stokes RW. Antimycobacterial polyynes of Devil's Club (Oplopanax horridus), a North American native medicinal plant. JOURNAL OF NATURAL PRODUCTS 1997; 60:1210-3. [PMID: 9392889 DOI: 10.1021/np970182j] [Citation(s) in RCA: 75] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Two new (3 and 5), as well as three known (1, 2, and 4), polyynes were isolated from Devil's Club (Oplopanax horridus; Araliaceae), a medicinal plant of North America. The structures were established by 1H and 13C NMR. The absolute configurations of 2 and 5 were determined by application of Mosher's method. All the polyynes exhibited significant anti-Candida, antibacterial, and antimycobacterial activity, with an ability to kill Mycobacterium tuberculosis and isoniazid-resistant Mycobacterium avium at 10 micrograms/disk in a disk diffusion assay.
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Affiliation(s)
- M Kobaisy
- Botany and Microbiology, University of British Columbia, Vancouver, Canada
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Franzyk H, Christensen MK, Jørgensen RM, Meldal M, Cordes H, Mouritsen S, Bock K. Constrained glycopeptide ligands for MPRs. Limitations of unprotected phosphorylated building blocks. Bioorg Med Chem 1997; 5:21-40. [PMID: 9043655 DOI: 10.1016/s0968-0896(96)00194-0] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
A new methodology for the synthesis of cyclic and phosphorylated glycopeptide templates was developed. First, fully protected building blocks containing mannose and mannose disaccharides with bis-trichloroethyl phosphate on Fmoc-Thr-OPfp were synthesized. These were used in solid-phase assembly through side chain anchoring of glycosylated hexa- and octa-peptides protected at the C-terminal carboxylate as the allyl ester. Selective allyl ester cleavage and head-to-tail cyclization under pseudodilution conditions gave a high yield of pure cyclic peptide templates. Unprotected phosphate in the building block was evaluated as an alternative to the problematic trichloroethyl group. It was found that one unprotected phosphate is readily incorporated, whereas the second unprotected phosphorylated building block react very slowly due to electrostatic repulsion in the solid-phase synthesis. For comparison with previous binding studies modified glycopeptide templates containing only phosphorylated mannose monosaccharides or templates modified in the peptide part were synthesized. All the structures were tested for their binding to the mannose 6-phosphate receptor, and it was found that although mannose disaccharides are required for optimal interaction, the detailed structure of the peptide template has a strong influence on binding to the receptor. The restricted conformations of the cyclic peptides decreased the binding considerably.
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Affiliation(s)
- H Franzyk
- Department of Chemistry, Carlsberg Laboratory, Copenhagen, Denmark
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13
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Methods for raising the efficiency of chromatographic purification of vinblastine preparations. Pharm Chem J 1995. [DOI: 10.1007/bf02331869] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Studies on carbohydrates XVIII. Synthesis of tetrasaccharide corresponding to biological repeat units of Serratia marcescens O18 polysaccharide. ACTA ACUST UNITED AC 1994. [DOI: 10.1016/s0957-4166(00)86306-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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15
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Liu G, Hu W, Ma Y, Jiang Y, Yang TK. Asymmetric Synthesis. XX. Asymmetric Oxidative Coupling Reaction of Imine Carbanions via (+)-Camphor Chiral Template. SYNTHETIC COMMUN 1994. [DOI: 10.1080/00397919408011325] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Abstract
The addition of diphenylnitrilimine and C-o-chlorodiphenylnitrilimine to 3 beta-hydroxyandrost-5,16-diene (3b) produced a 1/1 ratio of regioisomeric, 1,3-diaryl-2-pyrazolines (6a, 7a and 6b, 7b), whereas the addition of N-o-chlorodiphenylnitrilimine gave a 5/1 ratio in favor of the [17 alpha, 16 alpha-d] regioisomer (7c). To further delineate the factors governing the regiochemistry of addition of diphenylnitrilimines to steroid 16-enes, additions were carried out on 16-acetyl-5 alpha-androst-16-ene (5b) and 1-acetylcyclopentene (10).
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Affiliation(s)
- B Green
- Department of Chemistry, University of Maine, Orono 04469
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17
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Liu Y, Zhu D, Wada T, Yamada A, Sasabe H. Synthesis and characterization of a novel unsymmetrical metal-free phthalocyanine with donor-acceptor substituents. J Heterocycl Chem 1994. [DOI: 10.1002/jhet.5570310453] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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18
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Christensen MK, Meldal M, Bock K, Cordes H, Mouritsen S, Elsner H. Synthesis of glycosylated peptide templates containing 6′-O-phosphorylated mannose disaccharides and their binding to the cation-independent mannose 6-phosphate receptor. ACTA ACUST UNITED AC 1994. [DOI: 10.1039/p19940001299] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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19
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Vargas-Berenguel A, Meldal M, Paulsen H, Bock K. Convenient synthesis of O-(2-acitamido-2-deoxy-β-D-glucopyranosyl)-serine and -threonine building blocks for solid-phase glycopeptide assembly. ACTA ACUST UNITED AC 1994. [DOI: 10.1039/p19940002615] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Liu F, Tao G, Zhuo R. Synthesis of Thermal Phase Separating Reactive Polymers and Their Applications in Immobilized Enzymes. Polym J 1993. [DOI: 10.1295/polymj.25.561] [Citation(s) in RCA: 92] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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21
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Christiansen-Brams I, Meldal M, Bock K. Protected-mode synthesis of N-linked glycopeptides: single-step preparation of building blocks as peracetyl glycosylated NαFmoc asparagine OPfp esters. ACTA ACUST UNITED AC 1993. [DOI: 10.1039/p19930001461] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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22
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Meldal M, Christensen MK, Bock K. Large-scale synthesis of d-mannose 6-phosphate and other hexose 6-phosphates. Carbohydr Res 1992. [DOI: 10.1016/0008-6215(92)80082-c] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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23
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Zarate R, Sukrasno, Yeoman MM. Application of two rapid techniques of column chromatography to separate the pungent principles of ginger,Zingiber officinale Roscoe. J Chromatogr A 1992. [DOI: 10.1016/0021-9673(92)80189-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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24
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Alonso-amelot ME, P�rez-mena M, Calcagno MP, Jaimes-Espinoza R, Castillo U. Ontogenic variation of biologically active metabolites ofPteridium aquilinum (L. Kuhn) pterosins A and B, and ptaquiloside in a bracken population of the tropical andes. J Chem Ecol 1992; 18:1405-20. [DOI: 10.1007/bf00994365] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/1991] [Accepted: 04/07/1992] [Indexed: 10/26/2022]
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25
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Characterization of siderophores produced by different species of the dermatophytic fungiMicrosporum andTrichophyton. Biometals 1992. [DOI: 10.1007/bf01061220] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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26
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27
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The preparation and properties of peracetylated -xylo-oligosaccharides with all residues in the aldehydrol form. Tetrahedron 1990. [DOI: 10.1016/s0040-4020(01)85420-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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28
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Hasan A, Waterman P, Iftikhar N. The use of new chromatographic techniques for the isolation and purification of phenolic acids from Indigofera heterantha. J Chromatogr A 1989. [DOI: 10.1016/s0021-9673(01)84637-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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29
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Chapter 10 Bioactive Compounds from Marine Organisms and Cultivated Blue-Green Algae. ACTA ACUST UNITED AC 1989. [DOI: 10.1016/s0301-4770(08)60401-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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30
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Adam W, Lupón P. Quinol epoxides fromp-cresol and estrone by photooxygenation and titanium(IV)- or vanadium(V)-catalyzed oxygen transfer. ACTA ACUST UNITED AC 1988. [DOI: 10.1002/cber.19881210105] [Citation(s) in RCA: 29] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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31
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Compernolle F, Toppet S, Cuveele J, Lemli J. 2,2'-dimers of aloe-emodin and chrysophanol: bianthraquinones isolated from human plasma and aromatic cascara fluid extract usp XXI. Tetrahedron 1987. [DOI: 10.1016/s0040-4020(01)86846-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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32
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Bentley MD, Anderegg RJ, Szaniszlo PJ, Davenport RF. Isolation and identification of the principal siderophore of the dermatophyte Microsporum gypseum. Biochemistry 1986; 25:1455-7. [PMID: 2938628 DOI: 10.1021/bi00354a040] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The dermatophyte Microsporum gypseum has been shown to produce two siderophores under conditions of low-iron stress. These compounds have been separated as Fe(III) complexes on silica gel, and the principal siderophore has been identified as ferricrocin using the methods of amino acid analysis, comparative thin-layer chromatography, partial sequencing by gas chromatography-mass spectrometry, ultraviolet spectroscopy, and proton nuclear magnetic resonance spectroscopy of the Al(III) complex.
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33
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Poole CF, Schuette SA. Isolation and concentration techniques for capillary column gas chromatographic analysis. ACTA ACUST UNITED AC 1983. [DOI: 10.1002/jhrc.1240061002] [Citation(s) in RCA: 45] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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34
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Neidlein R, Shatzmiller S, Sinnreich D. Synthese von substituierten 2-Pyrrolidonderivaten. ACTA ACUST UNITED AC 1983. [DOI: 10.1002/jlac.198319830103] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Lidor R, Shatzmiller S. (2-Chloralkyliden)amin-oxide als Alkylierungsmittel; Reaktionen mit Aminen und den Anionen von Malonsäure-dialkylestern. European J Org Chem 1982. [DOI: 10.1002/jlac.198219820205] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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