Letteratura scientifica selezionata sul tema "Ophiorrhine A"
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Articoli di riviste sul tema "Ophiorrhine A"
Shi, Bao-bao, Hong-Lian Ai, Kai-Ting Duan, Tao Feng e Ji-Kai Liu. "Ophiorrhines F and G, Key Biogenetic Intermediates of Ophiorrhine Alkaloids from Ophiorrhiza japonica and Their Immunosuppressant Activities". Journal of Natural Products 85, n. 2 (1 febbraio 2022): 453–57. http://dx.doi.org/10.1021/acs.jnatprod.1c01085.
Testo completoArbain, Dayar, Lindsay T. Byrne,, Dachriyanus, Noversa Evrayoza e Melvyn V. Sargent. "Bracteatine, a Quaternary Glucoalkaloid from Ophiorrhiza bracteata". Australian Journal of Chemistry 50, n. 11 (1997): 1111. http://dx.doi.org/10.1071/c97055.
Testo completoFeng, Tao, Kai-Ting Duan, Shi-Jun He, Bin Wu, Yong-Sheng Zheng, Hong-Lian Ai, Zheng-Hui Li, Juan He, Jian-Ping Zuo e Ji-Kai Liu. "Ophiorrhines A and B, Two Immunosuppressive Monoterpenoid Indole Alkaloids from Ophiorrhiza japonica". Organic Letters 20, n. 24 (10 dicembre 2018): 7926–28. http://dx.doi.org/10.1021/acs.orglett.8b03489.
Testo completoArbain, Dayar, Lindsay T. Byrne, Deddi Prima Putra, Melvyn V. Sargent, Brian W. Skelton e Allan H. White. "Ophiorrhizine, a new quaternary indole alkaloid related to cinchonamine, from Ophiorrhiza major Ridl." Journal of the Chemical Society, Perkin Transactions 1, n. 6 (1992): 663. http://dx.doi.org/10.1039/p19920000663.
Testo completoARBAIN, D., L. T. BYRNE, D. P. PUTRA, M. V. SARGENT, B. W. SKELTON e A. H. WHITE. "ChemInform Abstract: Ophiorrhizine, a New Quaternary Indole Alkaloid Related to Cinchonamine, from Ophiorrhiza major Ridl." ChemInform 23, n. 29 (21 agosto 2010): no. http://dx.doi.org/10.1002/chin.199229268.
Testo completoFUJII, Tozo, Masashi OHBA e Shigeki SETO. "Quinolizidines. XXXIII. A Chiral Synthesis of (-)-Ophiorrhizine, a Pentacyclic Quaternary Indole Alkaloid from Ophiorrhiza major RIDL." CHEMICAL & PHARMACEUTICAL BULLETIN 43, n. 1 (1995): 49–52. http://dx.doi.org/10.1248/cpb.43.49.
Testo completoBirina, Bhuyan, e Baruah Sanjib. "On the extended distribution of two species of Ophiorrhiza L. (Rubiaceae) from the States of India". Plant Science Today 9, n. 4 (19 ottobre 2022): 1085–89. http://dx.doi.org/10.14719/pst.1769.
Testo completoSankaran, HAREESH Vadakkoot, Sreekumar Vadakkethil Balakrishnan, PRABHU KUMAR Konikkal Mambetta, NIRMESH Thankappan Kureekadu e Sreejith Kalpuzha Ashtamoorthy. "Ophiorrhiza sahyadriensis (Rubiaceae), a new species from southern Western Ghats, Kerala, India". Phytotaxa 202, n. 3 (13 marzo 2015): 219. http://dx.doi.org/10.11646/phytotaxa.202.3.6.
Testo completoFUJII, T., M. OHBA e S. SETO. "ChemInform Abstract: Quinolizidines. Part 33. A Chiral Synthesis of (-)-Ophiorrhizine (VII), a Pentacyclic Quaternary Indole Alkaloid from Ophiorrhiza major RIDL." ChemInform 26, n. 31 (17 agosto 2010): no. http://dx.doi.org/10.1002/chin.199531221.
Testo completoPham, Mai Huong, Thu Hoai Tran, Thi Dung Le, Tung Lam Le, Ha Hoang e Hoang Ha Chu. "The Complete Chloroplast Genome of An Ophiorrhiza baviensis Drake Species Reveals Its Molecular Structure, Comparative, and Phylogenetic Relationships". Genes 14, n. 1 (15 gennaio 2023): 227. http://dx.doi.org/10.3390/genes14010227.
Testo completoTesi sul tema "Ophiorrhine A"
Cao, Wei. "Total synthesis of ophiorrhine A, G and ophiorrhiside E and synthetic studies towards the total synthesis of pestalustaine A". Electronic Thesis or Diss., université Paris-Saclay, 2024. http://www.theses.fr/2024UPASF077.
Testo completoOphiorrhine A, G and ophiorrhiside E are monoterpene indole alkaloids which were isolated from the plant Ophiorrhiza japonica and trichocarpon. We achieved the first total synthesis of ophiorrhine A, G and ophiorrhiside E. Several strategies were investigated to construct the indolopyridone moiety of ophiorrhiside E, the postulated biosynthetic precursor of ophiorrhine A. Eventually, the Friedel-Crafts-type coupling of indolyl-acetamide with secologanin-derived acid chloride delivered ophiorrhine G. Cyclodehydratation of a protected form of the latter was followed by the desired spontaneous intramolecular Diels-Alder cycloaddition of protected ophiorrhiside E leading to ophiorrhine A, which could be converted to an unnatural product with a carbazole skeleton. We have investigated the total synthesis of pestalustaine A, a sesquiterpenoid which was isolated from an endophytic fungus pestalotiopsis adusta. We performed a ring expansion of a 6-membered intermediated to form the 7-membered core, a ring closing metathesis of a diene to construct the bridged 7/7 skeleton, and an intramolecular 1,4 addition to yield the pivotal tricyclic 7/5/6 framework. Through X-ray diffraction analysis of a crystal of an intermediate with the 7/5/6 core, we discovered that our structure differs from the one proposed in the isolation publication. By analyzing the spectra of the isolated natural product, we thought that the authors might have misassigned the structure
Chan, Hsiu-Hui, e 湛琇惠. "The Constituents of Ophiorrhiza hayatana Ohwi". Thesis, 2005. http://ndltd.ncl.edu.tw/handle/19915996522280002423.
Testo completo國立成功大學
化學系碩博士班
93
A series of chromatographic separation has led to the isolation of fifty-four compounds from the methanol extract of Ophiorrhiza hayatana Ohwi. Among these isolates, forty compounds were characterized by comprehensive analyses of their 1D and 2D NMR and mass spectral data, and some of them were also supported by chemical transformation studies. They include fifteen alkaloids, namely harman (1), norharman (2), 6-hydroxyharmane (3), pumiloside (7), strictosamide (24), lyalosidic acid (30), strictosidinic acid (32), 9H-b-carboline-1-carboxylic acid (81), 1-methoxycarbonyl-b- carboline (82), ophiohayatine-A (83), 1-methyl-9-carboline-3-carboxylic acid (84), maxonine (85), lyaloside (86), desoxycordifolinic acid (87), vincoside (88), eight anthraquinones namely rubiadin (43) , ophiohayatone-C (89), rubiadin-3-O-b-primeveroside (90), ophiohayatone-D (91), 2-hydroxymethyl-3-methoxyanthraquinone (92), ophiohayatone-A (93), ophiohayatone-B (94), 1-hydroxy-2-hydroxymethyl-anthraquinone-3-O-b-glucoside (95), eight benzenoids, namely methyl p-hydroxycinnamate (98), methyl apraben (99), vanillin (100), ophiorridin-C (101), p-hydroxybenzaldehyde (102), ophiorridin-A (103), nonadecyl ferulate (105), ophiorridin-B (104), two coumarins, namely scopoletin (96), umbelliferone (97), four chlorophylls, namely 132-hydroxy-(132-R)-phaeophytin-a (106), aristophyll-c (107), methyl (10S)-hydroxypheophorbide-a (108), 132-hydroxy-(132-S)-phaeophytin-a (109), and three miscellaneous compounds, ursolic acid (73), adenine (110), nicotinamide (111). Among them, three compounds (91), (93), (94), (103) were new compounds, and (83), (89), (101), (104) were reported for the first time from the natural sources.
袁淵傑. "The Constituents of the Ophiorrhiza Liukiuensus Hay". Thesis, 1995. http://ndltd.ncl.edu.tw/handle/71119265548801096826.
Testo completo國立成功大學
化學學系
83
Fraction and chromatography of the methanoi extract of phiorrhiza liukiuensis Hayata afforded eleven new compounds: ophiorrhizine-A, ophion-hizine-B , ophiorrhizol A, ophiorrhisin A, ophiorrhizinone-A , -Ba, -Bb , -C, -D , -E and sodium chlorogenate together with thirty seven known compounds : 1-hydroxy-2-methylanthraqumone,2-hydroxy-3-methylanthraquinone , 1-hy-droxy-3-methylanthraquinone, 1,3-dihydroxy-2-methoxymethyleneanthraqui-none, 1,6-dihydroxy-3-methylanthraquinone(or 1,7-dihydroxy-3-methylanthra-quinone), rabiadin, soranjidiol-1-methyl ether, 2-methyl-1,3,7trihydroxyanthra-quinone,2-niethyl-1,3,6-trihydroxyanthraquinone,2,8-dihydroxyl,3-dimethoxy--7-methylanthraquinone, 8-hydroxy-3-methoxy-7-methyl-1,2-methylenedioxy-anthraquinone, 1,3-dihydroxy-2,5-dimethoxy-6-methylanthraquinone, methyl 4-hydroxy-3-methoxycinnamate, vanillic acid, isovanillic acid, p-hydroxybenz-aldehyde, vanillin, protocatechuic acid, methyl p-hydroxycinnamate, ferulic acid methyl chlorogenate, quinic acid -3,4-di-O-caffeate, quinic acid -3,5-di-O-caffeate, isoscopoletin, aesculetin, socopolin, myo-inositol, quercetin 3-O-galactoside, sweroside, harman, adenine, 9-glucopyranosyl-4,7(E)-megastigma-dien-3-one, norharman, pumiloside, strictosamide, lyaloside acid, ursolic acid. The structure of these compounds were elucidated by spectroscopic and chem-ical methods. Moreover, the biological activity of these compounds are current-ly under investigation.
Capitoli di libri sul tema "Ophiorrhine A"
Khare, C. P. "Ophiorrhiza mungos Linn." In Indian Medicinal Plants, 1. New York, NY: Springer New York, 2007. http://dx.doi.org/10.1007/978-0-387-70638-2_1096.
Testo completoMahendran, Ganesan, e Laiq ur Rahman. "Biosynthesis and Biotechnological Production of Anticancer Drug Camptothecin in Genus Ophiorrhiza". In Reference Series in Phytochemistry, 903–20. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-30185-9_32.
Testo completoMahendran, Ganesan, e Laiq ur Rahman. "Biosynthesis and Biotechnological Production of Anticancer Drug Camptothecin in Genus Ophiorrhiza". In Reference Series in Phytochemistry, 1–18. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-11253-0_32-1.
Testo completoAsano, Takashi, Hiroshi Sudo, Mami Yamazaki e Kazuki Saito. "Camptothecin Production by In Vitro Cultures and Plant Regeneration in Ophiorrhiza Species". In Methods in Molecular Biology, 337–45. Totowa, NJ: Humana Press, 2009. http://dx.doi.org/10.1007/978-1-60327-287-2_27.
Testo completoPreethamol, S. N., e John E. Thoppil. "Secondary Metabolites in Ophiorrhiza brunonis Wight & Arn. (Rubiaceae): A Lead Towards Its Anticancer Potential". In Bioprospecting of Tropical Medicinal Plants, 727–38. Cham: Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-28780-0_29.
Testo completoWetterauer, B., E. Wildi e M. Wink. "Production of the Anticancer Compound Camptothecin in Root and Hairy Root Cultures of Ophiorrhiza mungos L." In Biotechnological Approaches for Medicinal and Aromatic Plants, 303–41. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-0535-1_14.
Testo completoWetterauer, Bernhard, Eric Hummel, Steffen Walczak, Melanie Distl, Markus Langhans, Pille Wetterauer, Frank Sporer, Eckhart Wildi e Michael Wink. "Physiology of Camptothecin Synthesis in Plants and Root Organ Cultures of Ophiorrhiza mungos L. and Its Production in Root Fermenters". In Exploring Plant Cells for the Production of Compounds of Interest, 291–338. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-58271-5_11.
Testo completoAtti di convegni sul tema "Ophiorrhine A"
NABATOV, A. A., e I. A. SCHANZER. "PHYLOGENY OF OPHIORRHIZA L. ( RUBIACEAE) SPECIES FROM SOUTH-EAST ASIA REVEALED BY MOLECULAR DATA". In 5TH MOSCOW INTERNATIONAL CONFERENCE "MOLECULAR PHYLOGENETICSAND BIODIVERSITY BIOBANKING". TORUS PRESS, 2018. http://dx.doi.org/10.30826/molphy2018-31.
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