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'Structure Elucidation' in keywords

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1	Author	D. Dill, H. Eckau, H. Budzikiewicz	Requires cookie*
	Title	Neuartige Cerebroside aus Cystobacter fuscus (Myxobacterales) [1] Novel Cerebrosides from Cystobacter fuscus (Myxobacterales) [1]
	Abstract	From the cell material of Cystobacter fuscus (Myxobacterales) the cerebroside l-0-/3-D-galacto-pyranosyl-N-(2R-hydroxy-15-methylpalmitoyl)-17-methylsphinga-4E,8E-dienin (main compo nent) and three related compounds could be isolated, the structure elucidation of which is being reported here.
	Reference	Z. Naturforsch. 40b, 1738—1746 (1985); eingegangen am 6. Mai 1985
	Published	1985
	Keywords	Cystobacter, Myxobacterales, Cerebrosides, Structure Elucidation
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	TEI-XML for	default:Reihe_B/40/ZNB-1985-40b-1738.pdf
	Identifier	ZNB-1985-40b-1738
	Volume	40

2	Author	G. Falsone, F. Cateni, F. Katusian, H. Wagner, O. Seligmann	Requires cookie*
	Title	Constituents of Euphorbiaceae, 10. Conun. [1] New Cerebrosides from Euphorbia characias L
	Abstract	G . P ellizer and F. A sa r o D epartm ent o f Chemical Sciences, U niversity o f Trieste, V ia L. Giorgieri 1 Four new cerebrosides C -l-C -4 were isolated from the latex o f Euphorbia characias L. On the basis o f spectral evidences and chem ical reactions they were characterized as (2 S , 3 S , 4 R , 5 R , 6Z)-l-0-(/?-D -glu cop yran osyl)-2N -[(2'R)-2'-h yd roxy-(15'Z)-tetracose-noyl]-6(Z)-octadecene-l,3,4,5-tetraol-2-am ino (C -l), (2 S , 3 S , 4 R , 5 R, 6 Z)-l-0 -(/? -D -g lu co -p y ra n o sy l)-2 N -[(2 'R)-2 'h y d ro x y -(1 7 'Z)-h ex a c o sen o y l]-6 (Z)-o c ta d e c en e-l,3 ,4 ,5 -te tr a o l-2-am ino(C -2),(2S, 3S , 4 R , 5 R, 6Z)-l-0-(/3-D -glucopyranosyl)-2N -[(2'R)-2'-hydroxy-(19'Z)-octacosenoyl]-6-(Z)-octadecene-l,3,4,5-tetraol-2-am ino (C -3) and (2S , 3 S, 4 R , 5 R, 6 Z)-l-0 -(/?-D -glu cop yran o sy l)-2 N -[(2 'R)-2 '-h y d ro x y -o cta co sa n o y l]-6 -(Z)-o cta d ecen e-l, 3,4,5-tetraol-2-amino (C-4). Reversed phase colum n flash chromatography was effective for the isolation of the cere brosides. FA B -M S spectrometry, X H N M R , 13C N M R analysis and chemical reactions were useful in providing information for the structure elucidation.
	Reference	Z. Naturforsch. 48b, 1121 (1993); received March 2 1 9 9 3
	Published	1993
	Keywords	Euphorbiaceae, C erebrosides, Structure Elucidation
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	TEI-XML for	default:Reihe_B/48/ZNB-1993-48b-1121.pdf
	Identifier	ZNB-1993-48b-1121
	Volume	48

3	Author	O. Rlando, M. Uñoz3, RaúlC. Peñab, Enrique Ureta, GloriaM. Ontenegro0, B. Arbara, N. Timmermannc	Requires cookie*
	Title	Propolis from Chilean Matorral Hives
	Abstract	Viscidone (0.5%), vanillin, 3',4'-(m ethylendioxy)acetophenone, 3-ethoxy-4-methoxybenz-aldehyde, cinnamic acid, 3-methoxy-4-hydroxymethyl ester were isolated from propolis o f hives from Cuncumen. This is the first report on propolis composition o f an arid and a Mediterranean type climate area.
	Reference	Z. Naturforsch. 56c, 269 (2001); received September 8/N ovem ber 16 2000
	Published	2001
	Keywords	Propolis, Structure Elucidation, Plant Sources
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	TEI-XML for	default:Reihe_C/56/ZNC-2001-56c-0269.pdf
	Identifier	ZNC-2001-56c-0269
	Volume	56

4	Author	O. Tto, O. Lfb, Onowara Begum2, Hans Geigerb	Requires cookie*
	Title	Fluorescence Properties of Hydroxy-and Methoxyflavones and the Effect of Shift Reagents
	Abstract	The fluorescence spectra o f 42 hydroxy-and m ethoxyflavones in m ethanol solution have been investigated. The follow ing findings are considered to be useful in structure elucidation and identification o f flavonoids: (a) The maxima of the absorption and fluorescence bands give, in m ost cases, a unique combination; (b) flavones exhibit exceptionally large Stok es' shifts (6,800 to
	Reference	Z. Naturforsch. 39b, 231 (1984); received Septem ber 23 1983
	Published	1984
	Keywords	Flavonoids, F luorescence, Structure Elucidation, Shift Reagents
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	TEI-XML for	default:Reihe_B/39/ZNB-1984-39b-0231.pdf
	Identifier	ZNB-1984-39b-0231
	Volume	39

5	Author	Atta-Ur -Rahman, S. Farhi, G. A. Miana, Mehrun Nisa, H.E J, Wolfgang Voelter	Requires cookie*
	Title	The Isolation and Structure of Papilamine, a New Alkaloid from Buxus papilosa
	Abstract	A new alkaloid, papilamine, has been isolated from the leaves of Buxus papilosa to which the structure 1 has been assigned on the basis of chemi-cal and spectroscopic studies.
	Reference	Z. Naturforsch. 40b, 567—568 (1985); received June 28 1984
	Published	1985
	Keywords	Steroidal Alkaloids, Buxus papilosa, Structure Elucidation, Febrifuge, Rheumatism
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	TEI-XML for	default:Reihe_B/40/ZNB-1985-40b-0567_n.pdf
	Identifier	ZNB-1985-40b-0567_n
	Volume	40

6	Author	J. Stein, H. Budzikiewicz	Requires cookie*
	Title	l-0-(13-Methyl-l-Z-tetradecenyl)-2-0-(13-methyItetradecanoyl)- glycero-3
	Abstract	phospho-ethanolamin, ein Plasmalogen aus Myxococcus stipitatus [1] l-0-(13-M ethyl-l-Z-tetradecenyl)-2-0-(13-m ethyltetradecanoyl)-glycero-3-phospho-ethanolam ine, a Plasmalogen from M yxococcus stipitatus [1] The structure of l-0-(13-m ethyl-l-Z -tetradecenyl)-2-0-(13-m ethyltetradecanoyl)-glycero-3-phospho-ethanolamine isolated from Myxococcus stipitatus has been elucidated. 'H and 13C NMR as well as mass spectral data have been accum ulated which allow a ready identification and structure elucidation of compounds of this type.
	Reference	Z. Naturforsch. 42b, 1017—1020 (1987); eingegangen am 25. März 1987
	Published	1987
	Keywords	Myxobacteria, Myxococcus stipitatus, Phospholipids, Plasmalogen, Structure Elucidation
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	TEI-XML for	default:Reihe_B/42/ZNB-1987-42b-1017.pdf
	Identifier	ZNB-1987-42b-1017
	Volume	42

7	Author	G. M. Ohn, K. Taraz, H. Budzikiewicz, FrauM. Prof, Bäudler	Requires cookie*
	Title	New Pyoverdin-Type Siderophores from Pseudomonas fluorescens [1]
	Abstract	The structures o f two new pyoverdins (G M -I and G M -II) isolated from the culture medium of Pseudomonas fluorescens have been elucidated by spectroscopic methods and degradation studies. The pyoverdins consist o f a chrom ophore which could be identified as (1 S)-5-amino-2,3-dihydro-8,9-dihydroxy-1 H -pyrim ido[l,2-a]quinoline-l-carboxylic acid substituted at the amino group with a 3-carboxypropanoyl or a succinamoyl residue and at the carboxy group with the N-terminus o f D -A l a -D -L y s —G l y -G ly -D -t h r e o -(O H) A s p -D -G lu -D -S e r — L -A l a -D -A l a -D -A l a -L -A l a -L -N 5-(O H)O rn . According to the "short-hand" nomenclature proposed in [2]*** the two com pounds should be characterized as pyoverdin-Q-akG Gd'qsAaaAO '-SUCA and pyoverdin-Q-akGG d'qsAaaAO '-SUC.
	Reference	Z. Naturforsch. 45b, 1437—1450 (1990); received April 26 1990
	Published	1990
	Keywords	Pseudomonas fluorescens, Pyoverdins, Siderophores, Structure Elucidation
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	TEI-XML for	default:Reihe_B/45/ZNB-1990-45b-1437.pdf
	Identifier	ZNB-1990-45b-1437
	Volume	45

8	Author	Viqar Uddin, Ahmad, ZulfiqarA. Li3, Muhammad Shaiq, A. Li3, Fazila Iqbal3, Muhammad Zahid3, RasoolBakhsh Tareenb, H.E J	Requires cookie*
	Title	Two New Aromatic Constituents from Stocksia brahuica
	Abstract	The methanolic extract of Stocksia brahuica yielded two new aromatic constituents: diphe nylacetic acid and brahene (2',4'-dihydroxy-7-methoxy-4,5-methylenedioxyisoflavene). Their structures were characterized with the help of modern spectroscopic techniques including 2D-NMR.
	Reference	Z. Naturforsch. 54b, 940—942 (1999); received January 2 1999
	Published	1999
	Keywords	Diphenylacetic Acid, Brahene, Sapindaceae, Stocksia brahuica, Structure Elucidation
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	TEI-XML for	default:Reihe_B/54/ZNB-1999-54b-0940.pdf
	Identifier	ZNB-1999-54b-0940
	Volume	54

9	Author	Joachim Heinickea, Attila Dala, Hans-Friedrich Kleinb, Olaf Hetcheb, Ulrich Flörkec, Hans-Jürgen Hauptc	Requires cookie*
	Title	Formation of r71-P-(2-Phosphinophenol)Ni(0)(PMe3)3 and Oxidation to cjs/fraws-Bis(2-phosphinophenolato)nickel(II) Complexes
	Abstract	o-Phosphinophenols 1 (P ^ O H) react with equimolar amounts of Ni(PMe3)4 at low tempera tures to give yellow Ni(0) complexes such as [(HO~P)Ni(PMe3)3] 2a with only P coordination of the P ^ O H ligand. Oxidation of solutions of 1 and Ni(PMe3)4 by dioxygen leads to brown bis(o-phosphinophenolato-P^O)nickel chelate complexes 3a-d. Structure elucidation by NM R is consistent with a m-square planar geometry for 3a-c and a rrans-square planar solution struc ture of the terr-butylphenylphosphino derivative 3d. The geometric isomers were distinguished by different ranges of phosphorus coordination shifts and 3lP-l3C-2 and 3IP-13C-1 coupling
	Reference	Z. Naturforsch. 54b, 1235—1243 (1999); received May 19 1999
	Published	1999
	Keywords	Phosphinophenolate, Nickel, Complexes, Structure Elucidation, Solid State Structures
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	TEI-XML for	default:Reihe_B/54/ZNB-1999-54b-1235.pdf
	Identifier	ZNB-1999-54b-1235
	Volume	54

10	Author	K. Taraz, D. Seinsche, H. Budzikiewicz	Requires cookie*
	Title	Pseudobactin-und Pseudobactin A-Varianten: Neue Peptidsiderophore vom Pyoverdin-Typ aus Pseudomonas fluovescens "E2" [1] Variants of Pseudobactin and Pseudobactin A: New Pyoverdin Type Peptide Siderophores from Pseudomonas fluorescens "E 2"
	Abstract	From a strain of Pseudomonas fluorescens pseudobactin and several related compounds were isolated and their structures were elucidated. In this way a reference compound (5) could be obtained for the unambiguous determination of the absolute configuration of C-l of the pyoverdin chromophore in newly isolated representatives of this class.
	Reference	Z. Naturforsch. 46c, 522—526 (1991); received February 20/April 9 1991
	Published	1991
	Keywords	Pseudomonas fluorescens, Siderophores, Pyoverdins, Pseudobactin, Structure Elucidation
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	TEI-XML for	default:Reihe_C/46/ZNC-1991-46c-0522.pdf
	Identifier	ZNC-1991-46c-0522
	Volume	46

11	Author	H. Lert, K. T. Araz, H. Budzikiewicz	Requires cookie*
	Title	Serratiochelin, a New Catecholate Siderophore from Serratia marcescens
	Abstract	The catecholate siderophore serratiochelin isolated from an iron deficient culture medium of Serratia marcescens TW was characterized by mass spectrometry and NMR and by GC/MS analysis of the hydrolysis products as l-(2,3-dihydroxybenzamido)-3-[4 S,5i?-2-(2,3-dihy-droxyphenyl)-5-methyl-2-oxazoline-4-carboxamido]propane. The structure of serratiochelin was confirmed by synthesis. The bacterial strain also produces chrysobactin. In tro d u ctio n
	Reference	Z. Naturforsch. 49c, 11—17 (1994); received October ll/D ecem ber 201993
	Published	1994
	Keywords	Catecholate Siderophore, Serratiochelin, Chrysobactin, Structure Elucidation, Serratia marcescens
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	TEI-XML for	default:Reihe_C/49/ZNC-1994-49c-0011.pdf
	Identifier	ZNC-1994-49c-0011
	Volume	49

12	Author	Michael Assmann3, VictorW. Rayb, RobW M Van Soestc, Peter Proksch3	Requires cookie*
	Title	Aiolochroia crassa*
	Abstract	A detailed analysis of the chemical constituents of a Caribbean specimen of Aiolochroia crassa was performed. Five brominated products (1 -5) were isolated and one of these was a new bromotyrosine metabolite. The structure of the new compound 1 has been established from spectral studies. Compounds 1 and 2, which are the major brominated metabolites and have not been previously identified in any Aiolochroia species, could be usefully employed as chemotaxonomic markers.
	Reference	Z. Naturforsch. 53c, 398 (1998); received April 8 1998
	Published	1998
	Keywords	Sponges, Aiolochroia crassa, Isoxazoline Alkaloids, Structure Elucidation
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	TEI-XML for	default:Reihe_C/53/ZNC-1998-53c-0398.pdf
	Identifier	ZNC-1998-53c-0398
	Volume	53

13	Author	Ru Angelie, Edrada3, Victor Wrayb, Ludger Wittec, Leen Van Ofwegend, Peter Proksch3	Requires cookie*
	Title	Bioactive Terpenes from the Soft Coral Heteroxenia sp. from Mindoro, Philippines
	Abstract	0 0 4 9 /9 31-8886182. E-m ail: proksch@botanik.uni-wuerzburg.de b Gesellschaft für Biotechnologische Forschung mbH, M ascheroder Weg A marine soft coral species of the genus Heteroxenia collected from Mindoro Island, Philip pines yielded two cadinene sesquiterpenes, (+)-a-m uurolene (1) and a novel derivative (+)-6 -hydroxy-a-muurolene (2), as well as the biologically active polyhydroxysterol, sarcoaldost-erol A (3). The structure of the novel compound was unambiguously established on the basis of NM R spectroscopic (! H, 13C, CO SY, ! H-detected direct and long range 13C -'H correla tions) and mass spectrom etric (E IM S) data. All compounds were active against the phytopa-thogenic fungus Cladosporium cucum erinum . The isolated terpenes were also active in the brine shrimp lethality test.
	Reference	Z. Naturforsch. 55c, 82—8 (2000); received August 1999
	Published	2000
	Keywords	Corals, Heteroxenia, Cadinene Sesquiterpenes, Structure Elucidation, Bioactivity
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	TEI-XML for	default:Reihe_C/55/ZNC-2000-55c-0082.pdf
	Identifier	ZNC-2000-55c-0082
	Volume	55

14	Author	Z. Naturforsch	Requires cookie*
	Title	Phenolic Compounds of Propolis from Central Chilean Matorral
	Abstract	Pinocembrin, acacetin, galanguin, izalpin, kaempferide, prenyletin and diarytheptane were isolated from propolis from Central Chile.
	Reference	Z. Naturforsch. 56c, 273—2 (2001); received D ecem ber 6 2000/January 23 2001
	Published	2001
	Keywords	Propolis, Structure Elucidation, Plant Sources, Phenolics
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	TEI-XML for	default:Reihe_C/56/ZNC-2001-56c-0273.pdf
	Identifier	ZNC-2001-56c-0273
	Volume	56

15	Author	H.E J	Requires cookie*
	Title	A tta-ur-Rahm an*, M ehrun Nisa, and Talat Zamir
	Abstract	A new alkaloid, "papilicine", has been isolated from the leaves of Buxus papilosa to which structure (1) has been assigned on the basis of spectroscopic studies. Buxus species have been used in the indigenous system of medicine as febrifuge, for relief of rheumatism and for the treatm ent of a num ber of other ailments. Buxus papilosa C. K. Schn., Linn.
	Reference	(Z. Naturforsch. 39b, 127—128 [1984]; received March 23 1983)
	Published	1984
	Keywords	Buxus papilosa, Alkaloids, Structure Elucidation, NMR Spectra, Mass Spectra
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	TEI-XML for	default:Reihe_B/39/ZNB-1984-39b-0127_n.pdf
	Identifier	ZNB-1984-39b-0127_n
	Volume	39

16	Author	Atta-Ur -Rahman, Mehrun Nisa, Talat Zamir, H.E J, Wolfgang Voelter	Requires cookie*
	Title	The Isolation and Structure of "Papilinine" a New Alkaloid from Buxus papilosa
	Abstract	A new alkaloid "Papilinine" has been isolated from the leaves of Buxus papilosa to which structure 1 has been assigned.
	Reference	Z. Naturforsch. 40b, 565—566 (1985); received June 28 1984
	Published	1985
	Keywords	Buxus papilosa, Steroidal Alkaloids, Structure Elucidation, NMR Spectra, Mass Spectra
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	TEI-XML for	default:Reihe_B/40/ZNB-1985-40b-0565_n.pdf
	Identifier	ZNB-1985-40b-0565_n
	Volume	40

17	Author	R. Teeyapant3, H.J W Oerdenbagb, P. Kreis3, J. Hacker0, V. W. Rayd, L. Witte6, P. Proksch3	Requires cookie*
	Title	Antibiotic and Cytotoxic Activity of Brominated Compounds from the Marine Sponge Verongia aerophoba
	Abstract	Analysis of the marine sponge Verongia aerophoba from the Canary Islands afforded eight brominated secondary metabolites including the small molecular weight compounds aeroply-sinin-1 (5) and the dienone (7) which were previously shown to arise by enzymatically cata lyzed degradation of aerophobin-2 (4) and isofistularin-3 (1) following breakdown of the cellu lar compartmentation o f the sponge. All compounds were identified from their NM R and mass spectra. Aeroplysinin-1 as well as dienone which arise from isofistularin-3 or aeropho bin-2 by biotransformation within the sponge showed a significantly higher antibiotic as well as cytotoxic activity than their biogenetic precursors. Antibiotic activity was studied with re spect to several gram-positive and gram-negative bacteria including B. subtilis, S. aureus and E. coli. The MICs (MBCs) of aeroplysinin-1 (5) and the dienone (7) varied between 12.5-25 (50-100) ng/ml respectively. Cytotoxicity was tested in vitro towards HeLa cells, a human cervix uteri tumour cell line. Aeroplysinin-1 (5) and the dienone (7) displayed pronounced cytotoxic activity with IC50s of 3.0 and 3.2 \|iM respectively. A five-fold increase in cytotoxicity was observed after O-acetylation of the dienone (7). The IC50 of the dienone O-acetate (0.6 ^im) was comparable to that o f the clinically used anticancer drug cisplatin (0.7 ^m).
	Reference	Z. Naturforsch. 48c, 939—945 (1993); received July 16/August30 1993
	Published	1993
	Keywords	Verongia aerophoba, Sponges, Secondary Metabolites, Structure Elucidation, Antibiotic Activity
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	TEI-XML for	default:Reihe_C/48/ZNC-1993-48c-0939.pdf
	Identifier	ZNC-1993-48c-0939
	Volume	48

18	Author	M. Adolphs, K. Taraz, H. Budzikiewicz	Requires cookie*
	Title	Catecholate Siderophores from Chryseomonas luteola
	Abstract	Two catecholate siderophores (chrysobactin and chryseomonin) were isolated from an iron-deficient culture medium of Chryseom onas luteola. Their structures were elucidated by chemical degradation studies and spectroscopic methods, especially 2D -N M R techniques, and confirmed by synthesis. Chryseomonin constitutes a novel type of catecholate siderophore.
	Reference	Z. Naturforsch. 51c, 281 (1996); received January 22/February 9 1996
	Published	1996
	Keywords	Catecholate Siderophore, Chryseom onas luteola, Chrysobactin, Chryseomonin, Structure Elucidation
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	TEI-XML for	default:Reihe_C/51/ZNC-1996-51c-0281.pdf
	Identifier	ZNC-1996-51c-0281
	Volume	51

19	Author	Thomas Fendert3, VictorW. Rayb, RobW M Van Soestc, Peter Proksch3	Requires cookie*
	Title	Bromoisoxazoline Alkaloids from the Caribbean Sponge Aplysina insularis
	Abstract	An investigation of a specimen of the Caribbean sponge A plysina insularis resulted in the isolation of fourteen bromoisoxazoline alkaloids (1 -1 4), of which 14-oxo-aerophobin-2 (1)* is a novel derivative. Structure elucidation of the compounds have been established from spectral studies and data for 1 are reported. Constituents 2 to 6 and 11 to 14 have not been identified sofar in A plysina insularis species. The presence of the known compounds 7 to 9 in A plysina insularis indicates that their use for chem otaxonom ical purposes is questionable.
	Reference	Z. Naturforsch. 54c, 246 (1999); received D ecem ber 23 1998/January 22 1999
	Published	1999
	Keywords	Sponges, A plysina insularis, Bromoisoxazoline Alkaloids, Chemotaxonomy, Structure Elucidation
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	TEI-XML for	default:Reihe_C/54/ZNC-1999-54c-0246.pdf
	Identifier	ZNC-1999-54c-0246
	Volume	54

20	Author	M. Uhammad, Shaiq Ali, Muhammad Saleem, Viqar Uddin, H.E J	Requires cookie*
	Title	Zatatriol: A New Aromatic Constituent from Zataria multiflora Ahm ad
	Abstract	A new isopropyl benzene derivative named as zatatriol (5) and two synthetically known compounds (2 and 7) having the same skeleton have been isolated from the hexane soluble part of a Lamiaceous plant Zataria multiflora. In addition to 2, 5 and 7, som e known constitu ents: p-cym ene (1), thymol (3), thymol methyl-ether (4) , /3-sitosterol, stigmasterol, oleanolic acid, betulinic acid, and hexadecanoic acid have also been isolated from the same source. Structures of the isolated constituents were elucidated with the aid of NM R spectroscopy.
	Reference	Z. Naturforsch. 54b, 807 (1999); received July 22 1998
	Published	1999
	Keywords	Lamiaceae, Zataria multiflora, Isopropyl Benzene Constituents, Structure Elucidation, N M R Data
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	TEI-XML for	default:Reihe_B/54/ZNB-1999-54b-0807.pdf
	Identifier	ZNB-1999-54b-0807
	Volume	54

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