abstract：:We have studied the uptake of [3H]-medicarpin and its glutathione conjugate(s) into vacuolar membrane vesicles from etiolated hypocotyls of mung bean (Vigna radiata). Unconjugated medicarpin is taken up at a low rate in the presence or absence of MgATP. However, [3H]-medicarpin-glutathione conjugate(s), prepared by in...

journal_title：Phytochemistry

authors： Li ZS,Alfenito M,Rea PA,Walbot V,Dixon RA

更新日期：1997-06-01 00:00:00

abstract：:Seven saponins named pithedulosides A-G were isolated from the seeds of Pithecellobium dulce. Their structures were established through spectral analyses as echinocystic acid 3-O-alpha-L-arabinopyranosyl-(1-->6)-beta-D-glucopyranoside, echinocystic acid and oleanolic acid 3-O-alpha-L-arabinopyranosyl- (1-->2)-alpha-L-...

journal_title：Phytochemistry

authors： Nigam SK,Gopal M,Uddin R,Yoshikawa K,Kawamoto M,Arihara S

更新日期：1997-04-01 00:00:00

abstract：:Microbial transformation of (+/-)-eudesmin by Aspergillus niger was investigated. Enantioselective accumulation of (--)-pinoresinol was shown through O-demethylation of (+/-)-eudesmin. This fungus O- demethylated both enantiomers of eudesmin, but the conversion rates for each enantiomer were clearly different. ...

journal_title：Phytochemistry

authors： Kasahara H,Miyazawa M,Kameoka H

更新日期：1997-04-01 00:00:00

abstract：:A novel minor triterpenoid saponin mimusin (3-O-[beta-D-glucopyranosyl- (1-->6)-beta-D-glucopyranosyl]-2 beta,3 beta,6 beta,23-tetrahydroxyolean- 12-en-28-oic acid 28-O-alpha-L-rhamnopyranosyl-(1-->3)-beta-D-xylopyranosyl-(1-->4)-alpha- L- rhamnopyranosyl-(1-->2)-alpha-L-arabinopyranoside was isolated from the seeds o...

journal_title：Phytochemistry

authors： Sahu NP,Koike K,Jia Z,Nikaido T

更新日期：1997-03-01 00:00:00

abstract：:Three alkaloids, neoharringtonine, homoneoharringtonine and 3'S-hydroxyneoharringtonine, were isolated from the leaves and stems of Cephalotaxus harringtonia var. drupacea. Their structures were established by spectroscopic methods, including two-dimensional NMR and CD spectra, and their antileukaemic activity was eva...

journal_title：Phytochemistry

authors： Takano I,Yasuda I,Nishijima M,Yanagi Y,Takeya K,Itokawa H

更新日期：1997-02-01 00:00:00

abstract：:Twenty phenolic compounds, representatives of proanthocyanidins and gallic acid/hexahydroxyldiphenic acid esters of glucose, have been assessed for their ability to inhibit binding of specific radioligands to 16 receptors. The receptors utilized were alpha 1-, alpha 2- and beta-adrenoceptors, adenosine 1, dopamine 1 a...

journal_title：Phytochemistry

authors： Zhu M,Phillipson JD,Greengrass PM,Bowery NE,Cai Y

更新日期：1997-02-01 00:00:00

abstract：:An investigation of the combined leaf and stem of Lithospermum caroliniense afforded two new pentacyclic triterpenoids based on the olean-12-ene and taraxast-12-ene skeletal types. The structures of these compounds were elucidated on the basis of spectral analysis as 1 alpha,3 beta,23-trihydroxyolean-12-ene-28-oic aci...

journal_title：Phytochemistry

authors： Fullas F,Wani MC,Wall ME,Tucker JC,Beecher CW,Kinghorn AD

更新日期：1996-12-01 00:00:00

abstract：:A novel cyanogenic diglucoside has been isolated from methanolic extracts of young seedlings of Sorghum bicolor. Its structure was established as dhurrin-6-glucoside from NMR, mass spectrometry and enzymatic hydrolysis data. Compared with dhurrin, which is the major cyanogenic glucoside in sorghum leaves, dhurrin-6-gl...

journal_title：Phytochemistry

authors： Selmar D,Irandoost Z,Wray V

更新日期：1996-10-01 00:00:00

abstract：:Four new xanthones have been isolated from the roots of Hypericum roeperanum. Their structures have been established by a combination of spectroscopic and chemical methods as 1,6-dihydroxy-5-methoxy-4',5'-dihydro-4',4',5'-trimethylfurano- (2',3':3,4)-xanthone (5-O-methyl-2-deprenylrheediaxanthone B), 1,6-dihydroxy-5-m...

journal_title：Phytochemistry

authors： Rath G,Potterat O,Mavi S,Hostettmann K

更新日期：1996-09-01 00:00:00

abstract：:The nematicidal 5-pentyl-2-furaldehyde and the cytotoxic sesquiterpene dermatolactone were isolated from the extracts of an Ascomycete belonging to the Dermateaceae. The furan has previously been reported from the Basidiomycete Irpex lacteus, while dermatolactone is a new compound the structure of which was determined...

journal_title：Phytochemistry

authors： Mayer A,Köpke B,Anke H,Sterner O

更新日期：1996-09-01 00:00:00

abstract：:2,5-Dimethyl-4-hydroxy-3[2H]-furanone 6'-O-malonyl-beta-D-glucopyranoside was isolated from a glycosidic extract of strawberry fruit (Fragaria x ananassa, cv. Senga Sengana) by means of countercurrent chromatography and reverse-phase HPLC. Identification was achieved by comparison of chromatographic and 1H, 13C and 2D...

journal_title：Phytochemistry

authors： Roscher R,Herderich M,Steffen JP,Schreier P,Schwab W

更新日期：1996-09-01 00:00:00

abstract：:In addition to hecogenin 3-O-beta-D-glucopyranosyl(1--> 4)-beta-D-galactopyranoside, two new steroidal saponins were isolated from the aerial parts of Tribulus terrestris L. On the basis of chemical and spectroscopic evidence, especially 2D NMR spectroscopic techniques, the structures of the new saponins were establis...

journal_title：Phytochemistry

authors： Wu G,Jiang S,Jiang F,Zhu D,Wu H,Jiang S

更新日期：1996-08-01 00:00:00

abstract：:Two new flavone glucosides, nevadensin 5-O-beta-D-glucoside and nevadensin 5-O-beta-D-glucosyl(1-->6)beta-D-glucoside, have been isolated from the aerial parts of Lysionotus pauciflorus. The structures have been determined by means of UV, mass spectral and one- and two-dimensional 1H and 13C NMR techniques. ...

journal_title：Phytochemistry

authors： Liu Y,Wagner H,Bauer R

更新日期：1996-07-01 00:00:00

abstract：:Passiflora morifolia, which under natural conditions contains cyanohydrin glucosides linamarin, lotaustralin and epilotaustralin, converted cyclopentanecarbonitrile, 2-cyclopentenecarbonitrile and 3-methylbutanenitrile into the corresponding cyanohydrin glucosides. Turnera angustifolia, which normally produces glucosi...

journal_title：Phytochemistry

authors： Jaroszewski JW,Rasmussen AB,Rasmussen HB,Olsen CE,Jørgensen LB

更新日期：1996-06-01 00:00:00

abstract：:Two new cytotoxic mono-tetrahydrofuran acetongenins, annosenegalin and annogalene, have been isolated from the cytotoxic methanolic extract of Annona senegalensis and A. cherimolia seeds. Their structures were established on the basis of 1D and 2D NMR spectroscopic techniques. Annosenegalin belongs to the rare type of...

journal_title：Phytochemistry

authors： Sahpaz S,González MC,Hocquemiller R,Zafra-Polo MC,Cortes D

更新日期：1996-05-01 00:00:00

abstract：:A novel pyradine-derivative was isolated from the mushroom Albatrellus confluens. This compound promoted melanin synthesis by B16 melanoma cells. ...

journal_title：Phytochemistry

authors： Kawagishi H,Tanaka A,Sugiyama K,Mori H,Sakamoto H,Ishiguro Y,Kobayashi K,Uramato M

更新日期：1996-05-01 00:00:00

abstract：:The degradation of the beta-conglycinin protein reserves in soybean seeds during germination and early growth begins with the proteolysis of its alpha and alpha' subunits by an enzyme called Protease C1. In the pathway, a number of proteolytic intermediates are produced and subsequently degraded. Determination of the ...

journal_title：Phytochemistry

authors： Tan-Wilson AL,Liu X,Chen R,Qi X,Wilson KA

更新日期：1996-05-01 00:00:00

abstract：:A new phenolic glycoside, asterbatanoside A [p-hydroxyacetophenone-4-O-beta-D-xylopyranosyl-(1-->6)-beta-D- glucopyranoside], and two new triterpenoid saponins, asterbatanoside B [2 alpha,3 beta,23-trihydroxyolean-12-en-28-oic acid-28-O-beta-D-glucopyranosyl-(1-->6)-beta-D-glucopyranoside] and asterbatanoside C [3-O-b...

journal_title：Phytochemistry

authors： Shao Y,Li YL,Zhou BN

更新日期：1996-04-01 00:00:00

abstract：:Aglaia argentea leaves yielded three new cycloartanes: argenteanones A and B, and argenteanol. The first two possess cytotoxic activity against KB cells (IC50 7.5 micrograms ml-1 and 6.5 micrograms ml-1 respectively). Structural elucidation was done by two-dimensional NMR spectroscopy. ...

journal_title：Phytochemistry

authors： Omobuwajo OR,Martin MT,Perromat G,Sevenet T,Awang K,Païs M

更新日期：1996-03-01 00:00:00

abstract：:Fractionation of an HIV-inhibitory organic extract of Geniostoma antherotrichum afforded a glycoside derivative, which has been characterized as 2-hydroxy-3-O-beta-D-glucopyranosyl-benzoic acid (1) on the basis of spectral analyses. The HIV-inhibitory activity of the extract was traced to polymeric tannins, while 1 wa...

journal_title：Phytochemistry

authors： Rashid MA,Gustafson KR,Cardellina JH 2nd,Boyd MR

更新日期：1996-03-01 00:00:00

abstract：:A polynucleotide (or a fragment of RNA) was purified to apparent homogeneity by HPLC from mycelium of the wild strain 74A of the mould Neurospora crassa, after growth on sucrose and in the presence of saturating amounts of inorganic phosphate (Pi) for 72 hr at 30 degrees. The M(r) was ca 20,000 as determined by HPLC a...

journal_title：Phytochemistry

authors： Carmona EC,Han SW,Palma MS,Rossi A

更新日期：1996-02-01 00:00:00

abstract：:Scrokoelziside A, isolated from the aerial parts of Scrophularia koelzii was shown to be 3-O-([alpha-L-rhamnopyranosyl-(1-->3), beta-D-glucopyranosyl-(1-->2)]-beta-D-fucopyranosyl-(1-->4)-beta-D- glucopyranosyl]-13 beta,28-epoxyolean-11-en-23-ol, on the basis one- and two-dimensional NMR homo- and hetero-nuclear spect...

journal_title：Phytochemistry

authors： Bhandari SP,Roy R,Agrawal PK,Garg HS

更新日期：1996-02-01 00:00:00

abstract：:Artemisinin was derivatized to dihydroartemisinin carboxymethylether in three steps, without disturbing the peroxide bridge, and then linked to either thyroglobulin (TGB) or bovine serum albumin (BSA). The artemisinin-TGB and -BSA conjugates were injected in female New Zealand rabbits but only the artemisinin-TGB conj...

journal_title：Phytochemistry

authors： Ferreira JF,Janick J

更新日期：1996-01-01 00:00:00

abstract：:Two new furostanol saponins, named chinenosides II and III, were isolated along with seven known compounds, from the bulbs of Allium chinese G. Don by a combination of silica gel, Diaion HP-20, and octadecylsilanized (ODS) silica gel column chromatographies and preparative HPLC. On the basis of chemical and spectrosco...

journal_title：Phytochemistry

authors： Peng JP,Yao XS,Tezuka Y,Kikuchi T

更新日期：1996-01-01 00:00:00

abstract：:From the mesocarp of Balanites aegyptiaca fruits, two pregnane glycosides were isolated. One is new and identified as pregn-5-ene-3 beta,16 beta,20(R)-triol 3-O-(2,6-di-O-alpha-L-rhamnopyranosyl)-beta-D-glucopyranoside (balagyptin), while the other is known and assigned as pregn-5-ene-3 beta,16 beta,20(R)-triol 3-O-be...

journal_title：Phytochemistry

authors： Kamel MS,Koskinen A

更新日期：1995-12-01 00:00:00

abstract：:Two new monogalactosyl diacylglycerols were isolated from the freshwater green alga, Chlorella vulgaris, as anti-tumour promoters, together with three monogalactosyl diacylglycerols and two digalactosyl diacylglycerols. The new monogalactosyl diacylglycerol containing (7Z,10Z)-hexadecadienoic acid showed a more potent...

journal_title：Phytochemistry

authors： Morimoto T,Nagatsu A,Murakami N,Sakakibara J,Tokuda H,Nishino H,Iwashima A

更新日期：1995-11-01 00:00:00

abstract：:In addition to lotaustralin and linamarin, a novel cyanogenic glycoside, 2-((6-O-(beta-D-apiofuranosyl)-beta-D-glucopyranosyl)oxy)-2-met hylbutanenitrile , two novel non-cyanogenic glycosides, (2S)-((6-O-(beta-D-apiofuranosyl)-beta-D- glucopyranosyl)oxy)butane and 2-((6-O-(beta-D-apiofuranosyl)-beta-D-glucopyranosyl)o...

journal_title：Phytochemistry

authors： Prawat H,Mahidol C,Ruchirawat S,Prawat U,Tuntiwachwut-tikul P,Tooptakong U,Taylor WC,Pakawatchai C,Skeleton BW,White AH

更新日期：1995-11-01 00:00:00

abstract：:From the roots of Silene jenisseensis a new trans-p-methoxycinnamoyl triterpene saponin has been isolated along with its cis-p-methoxycinnamoyl isomer as an inseparable mixture. Their structures were established by chemical means and spectroscopic methods including 1D- and 2D-homonuclear and heteronuclear correlation ...

journal_title：Phytochemistry

authors： Lacaille-Dubois MA,Hanquet B,Cui ZH,Lou ZC,Wagner H

更新日期：1995-09-01 00:00:00

abstract：:A new bidesmosidic triterpenoidal saponin 3-O-[beta-D-glucopyranosyl-(1-->4)-beta-D-glucopyranosyl-(1-->4)-alpha-L - arabinopyranosyl]-hederagenin-28-O-[alpha-L-rhamnopyranosyl- (1-->4)-beta-D- glucopyranosyl-(1-->6)-beta-D-glucopyranosyl] ester, was isolated from the roots of Symphytum officinale. The structure was a...

journal_title：Phytochemistry

authors： Mohammad FV,Noorwala M,Ahmad VU,Sener B

更新日期：1995-09-01 00:00:00

abstract：:The new phenylethanoid glycosides 2-O-acetyl-3'''-O-methylverbascoside and 2,4"-di-O-acetyl-3'''-O-methylverbascoside were isolated and identified from Penstemon crandallii. The major iridoid glycoside was plantarenaloside and no aucubin type iridoids were found. This contrasted with a previous analysis of P. teucrioi...

journal_title：Phytochemistry

authors： Ismail LD,el-Azizi MM,Khalifa TI,Stermitz FR

更新日期：1995-08-01 00:00:00

abstract：:Two new triterpenoid glycosides, quinovic acid-3 beta-O-beta-D- glucopyranosyl-(1-->4)-alpha-L-rhamnopyranoside and quinovic acid-3 beta-O-beta-D-glucopyranosyl-(1-->3)-beta-D-fucopyranoside (named rubelloside A and B, respectively), were isolated from roots of Adina rubella. Their structures were elucidated by spectr...

journal_title：Phytochemistry

authors： Fang SY,He ZS,Gao JH,Wang P

更新日期：1995-07-01 00:00:00

abstract：:Schizolobium parahyba seed chymotrypsin inhibitor (SPC) is a protein with M(r) of 20,000 and four half-cystine residues and no free thiol group. SPC is stable at temperatures up to 75 degrees at pH 7 but gradually loses activity when kept at 95 degrees for 1 hr and total inactivation occurs after 5 hr. Amino acid anal...

journal_title：Phytochemistry

authors： Souza EM,Mizuta K,Sampaio MU,Sampaio CA

更新日期：1995-06-01 00:00:00

abstract：:We have previously reported the purification and partial characterization of two cationic peroxidases from the cell walls of seeds and seedlings of the South American conifer, Araucaria araucana. In this work, we have studied the amino acid composition and NH2-terminal sequences of both enzymes. We also compare the da...

journal_title：Phytochemistry

authors： Riquelme A,Cardemil L

更新日期：1995-05-01 00:00:00

abstract：:The enzymology of anthranilate synthase (EC 5.4.99.6) in microorganisms and plants is reviewed. Aminoacid sequences of the enzyme subunits in different species are compared, and the mechanism of reaction is discussed. ...

journal_title：Phytochemistry

authors： Romero RM,Roberts MF,Phillipson JD

更新日期：1995-05-01 00:00:00

abstract：:The structure of cephalaria saponin B, isolated from Cephalaria transsylvanica was elucidated as 3-O-([beta-D-xylopyranosyl(1-->4)-alpha-L-rhamnopyranosyl(1-->2)-beta-D- xylopyranosyl]-[28-O-beta-D-glucopyranosyl])-3beta,23-dihydroxy-12(13)-oleanene-28-oic acid. ...

journal_title：Phytochemistry

authors： Alankuş-Calişkan O,Anil H

更新日期：1995-04-01 00:00:00

abstract：:Two novel anthocyanins, delphinidin 3-O-(6-O-cis-p-coumaroyl-beta-D-glucoside)-5-O-(6-O-malonyl-beta-D -glucoside) and petunidin 3-O-(6-O-trans-p-coumaroyl-beta-D-glucoside)-5-O-(6-O-malonyl-beta -D-glucoside) , were isolated from the blue flowers of Hyacinthus orientalis cv. Delft Blue. Five known acylated anthocyani...

journal_title：Phytochemistry

authors： Hosokawa K,Fukunaga Y,Fukushi E,Kawabata J

更新日期：1995-03-01 00:00:00

abstract：:Six new and three synthetically known glycosides have been isolated from the leaves of Moringa oleifera, employing a bioassay-directed isolation method on the ethanolic extract. Most of these compounds, bearing thiocarbamate, carbamate or nitrile groups, are fully acetylated glycosides, which are very rare in nature. ...

journal_title：Phytochemistry

authors： Faizi S,Siddiqui BS,Saleem R,Siddiqui S,Aftab K,Gilani AH

更新日期：1995-03-01 00:00:00

abstract：:A 13-membered N-formylcyclopeptide alkaloid, nummularine-T, has been isolated from the bark of Zizyphus nummularia and its structure established by spectroscopic and chemical methods. It provides the fourth example of a naturally occurring N-formyl cyclopeptide alkaloid. ...

journal_title：Phytochemistry

authors： Singh B,Pandey VB

更新日期：1995-01-01 00:00:00

abstract：:Cyclization of methyl ent-8 alpha-hydroxylabd-13(16),14-dien-18-oate with m-chloroperbenzoic acid gave methyl (13S)-ent-16-hydroxy-8 alpha,13-epoxylabd-14-en-18-oate and its epimer at C-13. Biotransformation of the former (which exhibits antileishmania activity) with Rhizopus nigricans cultures produced the methyl (13...

journal_title：Phytochemistry

authors： García-Granados A,Liñán E,Martínez A,Onorato ME,Parra A,Arias JM

更新日期：1995-01-01 00:00:00

abstract：:Investigation of the aerial parts of Rhyncholacis penicillata afforded the new chromenes, 7-hydroxy-6-(3-methylbutyryl)-5-oxymethyl-chromene (rhynchonin A) and 7-hydroxy-6-(2-methylbutyryl)-6-oxymethylchromene (rhynchonin B). Structures were elucidated by spectroscopic methods and independent synthesis. Rhynchonin A s...

journal_title：Phytochemistry

authors： Burkhardt G,Becker H,Grubert M,Thomas J,Eicher T

更新日期：1994-12-01 00:00:00