Results 111 to 120 of about 615 (149)
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ChemInform Abstract: UEBER AZASTEROIDE
Chemischer Informationsdienst, 1972AbstractDieser Übersichtsartikel beschreibt Synthesen und biologische Eigenschaften von Azasteroiden.
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Total Synthesis of 8-Azasteroids
Russian Chemical Reviews, 1984Studies on the total synthesis of 8-azasteroids from the start of investigations in this field (1963) up to 1983 are examined. Earlier studies on the synthesis of compounds formally containing the 8-azasteroid skeleton and those on the synthesis of 8-azasteroids with an additional heteroatom are also analysed.
Fedor A Lakhvich, Lev G Lis, A A Akhrem
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ChemInform Abstract: Formation of Acetamido Azasteroids.
ChemInform, 1991AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
S. NIKOLAROPOULOS, P. CATSOULACOS
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Proton-Acceptor Properties of 8-Azasteroids
Russian Physics Journal, 2004Proton-acceptor properties of immune-active 8-azasteroid molecules in the ground and fluorescent states were estimated using the wave functions calculated by the INDO method. The effect of substitution on the foregoing properties was examined. An attempt was made to discover a correlation between the directivity of the immune action and proton-acceptor
O. K. Basyl’ +2 more
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ChemInform Abstract: SYNTHESIS OF INDOLIZIDINE AZASTEROIDS
Chemischer Informationsdienst, 1981AbstractEinige Indolizidin‐Azasteroide wie (IV), (V), (VI), (VII) und (VIII) werden durch Ringverengung aus dem ungesättigten Lactam (I) über das Diol (II) und die ringgeöffnete Verbindung (III) hergestellt.
J. W. MORZYCKI, W. RODEWALD
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Synthesis of phenanthridones, quinolinequinones and 7-azasteroids
Tetrahedron, 1999Abstract Cleavage of ring D of lycorines, obtained by an intramolecular cycloaddition of an aryne to an azadiene, led to phenanthridines, which were either oxidized to quinolinequinones or cyclized to 7-azasteroids, both of which families are of potential pharmacological interest.
Concepción González +2 more
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The syntheses of 9-azasteroids—I
Tetrahedron, 1965Abstract 4-Oxobenzo [c] quinolizidines have been examined as possible precursors of 9-azasteroids. 4-Oxo- and 3-methyl-4-oxobenzo [c] quinolizinium salts have been prepared and reduced to 4-hydroxy-benzo [c] quinolizidines, but attempts at oxidation of these alcohols have failed.
G. Jones, J. Wood
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The synthesis of 9-azasteroids—II
Tetrahedron, 1965Abstract The synthesis of 3-cyano-4-oxo-1,2,3,4,5,6-hexahydrobenzo[c]quinolizine (XIV), of 2-carbethoxy-3-oxo-1,2,3,4,5,6-hexahydrobenzo[c]quinolizine(XVII), and of 4-cyano-3-oxo-1,2,3,4,5,6-hexahydrobenzo[c]quinolizine (XXIX) is reported. Attempts to methylate 3-carbethoxy-4-oxo-1,2,3,4,5,6-hexahydrobenzo[c]quinolizine (II) were unsuccessful ...
G. Jones, J. Wood
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ChemInform Abstract: Partial Synthesis of Azasteroids
ChemInform, 1995AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
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