Zur Struktur des Pyramidon^R-Thioharnstoff-Komplexes in Lösung = Structure en solution du complexe aminophénazone-thiourée = On the solution structure of a complexe aminophenazone-thioureaWIEDENFELD, H.Archiv der Pharmazie (Weinheim). 1987, Vol 320, Num 3, pp 193-198, issn 0365-6233Article

DIE ABSOLUTE KONFIGURATION DES PYRROLIZIDINALKALOIDS 0-7-ANGELYLHELIOTRIDIN = CONFIGURATION ABSOLUE DE L'ALCALOIDE PYRROLIZIDINE 0-7-ANGELYLHELIOTRIDINEWIEDENFELD H; ROEDER E.1981; ARCH. PHARM. (WEINHEIM); ISSN 0365-6233; DEU; DA. 1981; VOL. 314; NO 9; PP. 737-740; ABS. ENG; BIBL. 8 REF.Article

SYNTHESE VON RACEM. 5-HYDROXY-3,4-DIMETHYL-1-HEXEN-2,5-DICARBONSAEURE (SENECIVERNINSAEURE) = SYNTHESE D'ACIDE HYDROXY-5 DIMETHYL-3,4 HEXENE-1 DICARBOXYLIQUE-2,5 RACEMIQUE (ACIDE SENECIVERNIQUE)PASTEWKA U; WIEDENFELD H; ROEDER E et al.1980; ARCH. PHARM. (WEINHEIM); ISSN 0365-6233; DEU; DA. 1980; VOL. 313; NO 9; PP. 785-790; ABS. ENG; BIBL. 8 REF.Article

SYNTHESE VON RACEMISCHER TRANS-6-HYDROXY-5-METHYL-2-HEPTEN-3,6-DICARBONSAEURE (INTEGERRINECINSAEURE) = SYNTHESE DE L'ACIDE RACEMIQUE TRANS-HYDROXY-6 METHYL-5 HEPTENE-2 DICARBOXYLIQUE-3,6 (ACIDE INTEGERRINECIQUE)PASTEWKA U; WIEDENFELD H; ROEDER E et al.1980; ARCH. PHARM. (WEINHEIM); DEU; DA. 1980; VOL. 313; NO 10; PP. 846-850; ABS. ENG; BIBL. 11 REF.Article

PYRROLIZIDINALKALOIDE AUS SENECIO VERNALIS = ALCALOIDE DERIVE DE LA PYRROLIZIDINE CHEZ S.V.RODER E; WIEDENFELD H; PASTEWKA U et al.1979; PLANTA MED.; DEU; DA. 1979; VOL. 37; NO 2; PP. 131-136; ABS. ENG; BIBL. 5 REF.Article

DIE PYRROLIZIDINALKALOIDE SENECIONIN UND RETRORSIN AUS SENECIO INAEQUIDENS = ALCALOIDES PYRROLIZIDINIQUES SENECIONINE ET RETRORSINE DE S. I.ROEDER E; WIEDENFELD H; STENGL P et al.1981; PLANTA MED.; ISSN 0032-0943; DEU; DA. 1981; VOL. 41; NO 4; PP. 412-413; BIBL. 5 REF.Article

TUSSILAGIN-EIN NEUES PYRROLIZIDINALKALOID AUS TUSSILAGO FARFARA = TUSSILAGINE; UN NOUVEL ALCALOIDE PYRROLIZIDINIQUE DE T.F.RODER E; WIEDENFELD H; JOST EJ et al.1981; PLANTA MED.; ISSN 0032-0943; DEU; DA. 1981; VOL. 43; NO 1; PP. 99-102; ABS. ENG; BIBL. 8 REF.Article

Harnstoffkomplexe mit Dicarbonsäuren. I : Die Struktur von Bernsteinsäure-Harnstoff = Urea compound with dicarboxylic acid. I: Communication: the structure of succinic acid-ureaWIEDENFELD, H; KNOCH, F.Acta crystallographica. Section C, Crystal structure communications. 1990, Vol 46, Num 6, pp 1038-1040, issn 0108-2701Article

Zur Kristallstruktur des Theophyllin-Harnstoff-Komplexes = Structure cristalline du complexe théophylline-urée = The crystal structure of the theophylline-Urea complexWIEDENFELD, H; KNOCH, F.Archiv der Pharmazie (Weinheim). 1986, Vol 319, Num 7, pp 654-659, issn 0365-6233Article

ZUR GASCHROMATOGRAPHISCHEN BESTIMMUNG DER PYRROLIZIDENALKALOIDE AUS EINIGEN SENECIOARTEN = SUR LE DOSAGE PAR CHROMATOGRAPHIE EN PHASE GAZEUSE DES ALCALOIDES DERIVES DE LA PYRRAZOLINE DE QUELQUES ESPECES DE S.WIEDENFELD H; PASTEWKA U; STENGL P et al.1981; PLANTA MED.; ISSN 0032-0943; DEU; DA. 1981; VOL. 41; NO 2; PP. 124-128; ABS. ENG; BIBL. 13 REF.Article

Plants containing pyrrolizidine alkaloids: toxicity and problemsWIEDENFELD, H.Food additives & contaminants. Part A. Chemistry, analysis, control, exposure & risk assessment (Print). 2011, Vol 28, Num 3, pp 282-292, issn 1944-0049, 11 p.Article

Die Struktur des Diphenhydramin-Thioharnstoff-Komplexes = Structure du complexe diphénhydramine-thiourée = Structure of diphenhydramine-thioureaWIEDENFELD, H; KNOCH, F.Acta crystallographica. Section C, Crystal structure communications. 1987, Vol 43, Num 7, pp 1359-1362, issn 0108-2701Article

Pyrrolizidine alkaloids from Critonia morifoliaWIEDENFELD, H; ANDRADE CETTO, A.Phytochemistry. 1998, Vol 49, Num 5, pp 1463-1465, issn 0031-9422Conference Paper

DIE ABSOLUTE KONFIGURATION DES PYRROLIZIDINALKALOIDS PLATYPHYLLIN = CONFIGURATION ABSOLUE DE L'ALCALOIDE PYRROLIZIDINE PLATYPHYLLINEWIEDENFELD H; ROEDER E; KIRFEL A et al.1982; ARCH. PHARM. (WEINHEIM); ISSN 0365-6233; DEU; DA. 1982; VOL. 315; NO 2; PP. 165-169; ABS. ENG; BIBL. 12 REF.Article

Pyrrolizidine alkaloids from Ageratum conyzoidesWIEDENFELD, H; RÖDER, E.Planta medica. 1991, Vol 57, Num 6, pp 578-579, issn 0032-0943Article

Generation and characterization of Monoclonal antibodies against the pyrrolizidine alkaloid retrorsineZÜNDORF, I; WIEDENFELD, H; RÖDER, E et al.Planta medica. 1998, Vol 64, Num 3, pp 259-263, issn 0032-0943Article

Synthese von 2,3-Dihydro-7-methyl-1H-pyrrolizin-1-on, dem Sexualpheromon Danaidon = Synthèse de dihydro-2,3 méthyl-7 1H-pyrrolizinone-1, la phéromone sexuelle danaidone = Synthesis of 2,3-dihydro-7-methyl-1H-pyrrolizin-1-one, the sex pheromoneRODER, E; WIEDENFELD, H; BOURAUEL, T et al.Liebigs Annalen der Chemie. 1985, Num 8, pp 1708-1710, issn 0170-2041Article

Antibiotics from Algae XXXVII. Rhodomelol and methylrhodomelol from Polysiphonia lanosaGLOMBITZA, K.-W; SUKOPP, I; WIEDENFELD, H et al.Planta medica. 1985, Num 5, pp 437-440, issn 0032-0943Article

Absolute configuration of the pyrrolizidine alkaloid acetylgynuramineWIEDENFELD, H; KIRFEL, A; RODER, E et al.Phytochemistry. 1983, Vol 22, Num 9, pp 2065-2067, issn 0031-9422Article

Crystal structure of 4-phenyl-2-[4-[4-(2-pyrimidyl)-piperazine-1-yl]-butyl]-δ-4,4a-hexahydro-pyrido-[1,2-c]pyrimido-1,3-dione, C₈H₈N₂O₂(C₆H₅)(CH₂)₄C₄H₈N₂C₄H₃N₂KNOCH, F; WIEDENFELD, H; HEROLD, F et al.Zeitschrift für Kristallographie. 1995, Vol 210, Num 11, pp 899-900, issn 0044-2968Article

Die absolute Konfiguration des Pyrrolizidinalkaloids O-7-Angelylretronecin = Configuration absolue d'un alcaloïde de dérivé de la pyrrolizidine: 0-7 amgelylrétronécine = The absolute configuration of the pyrrolizidine alkaloid 0-7-AmgelylretronecineWIEDENFELD, H; KIRFEL, A; RÖDER, E et al.Archiv der Pharmazie (Weinheim). 1985, Vol 318, Num 4, pp 294-299, issn 0365-6233Article

Pyrrolizidinalkaloide aus Senecio abrotanifolius, ssp. abrotanifolius und ssp. abrotanifolius, var. tiroliensis = Alcaloïdes pyrrolizidines de Senecio abrotanifolius, sp abrotanifolius et ssp abrotanifolius, var tiroliensis = Pyrrolizidinalkaloides from Senecio abrotanifolius ssp abrotanifolius and ssp abrotanifolius, var tiroliensisRÖDER, E; WIEDENFELD, H; KNÖZINGER-FISCHER, P et al.Planta medica. 1984, Vol 50, Num 2, pp 203-204, issn 0032-0943Article

CARCINOGENIC AND MUTAGENIC ACTIVITY OF AN ALKALOIDAL EXTRACT OF SENECIO NEMORENSIS SSP. FUCHSIIHABS H; HABS M; MARQUARDT H et al.1982; ARZNEIM-FORSCH.; ISSN 0004-4172; DEU; DA. 1982; VOL. 32; NO 2; PP. 144-148; ABS. GER; BIBL. 28 REF.Article

2α,5α,9α-trihydroxy-10β,13α-diacetoxy-4β,20-epoxy-taxa-11-en, ein neues taxan aus Taxus chinensis = 2α,5α,9α-Trihydroxy-10β,13α-diacetoxy-4β,20-epoxytax-11-ene,a new taxane from Taxus chinensisWIEDENFELD, H; KNOCH, F; ZONG PING ZHANG et al.Acta crystallographica. Section C, Crystal structure communications. 1995, Vol 51, pp 2184-2186, issn 0108-2701, 10Article

Pyrrolizidine alkaloids from Eupatorium portoricenseWIEDENFELD, H; GUERRERO, R; ROEDER, E et al.Planta medica. 1995, Vol 61, Num 4, pp 380-381, issn 0032-0943Article