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  • 1
    ISSN: 1432-0738
    Keywords: Key words: Phthalimidophthalimide – Thalidomide – Teratogenicity –Callithrix jacchus– Marmosets
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. The teratogenic potency of the thalidomide (Thd) derivative phthalimidophthalimide (Phtpht) was assessed in the common marmoset (Callithrix jacchus), by oral administration of the relatively high daily dose of 50 mg Phtpht/kg body wt, during the susceptible period (days 48 – 61 of pregnancy). Since in this species daily doses of only 100 µg/kg body wt of the Thd derivative EM12 already induce typical gross structural abnormalities in nearly 100% of the fetuses, investigations with a small number of these New World monkeys allow a rough estimation of the teratogenic potency of Thd-type substances. Macroscopic inspection and skeletal evaluation of ten fetuses gave no indication of dysmorphogenesis following treatment with Phtpht. We conclude that Phtpht has little, if any, Thd-type teratogenic potency in this non-human primate.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 94 (1961), S. 216-220 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Die 2.4-Dinitrophenylhydrazon-hydrochloride der β-Aminoaldehyde werden erhalten durch Reduktion von N-Methylaniliden, Indoliden und Carbazoliden der entsprechenden β-Aminosäuren mit Lithiumaluminiumhydrid.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 0170-2041
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: EPC ≠) Synthesis of (R)-(+)- and (S)-(-)-Supidimide and Crystal Structure Analysis of (R)-(+)-SupidimideStarting from D- and L-ornithine, the enantiomers of supidimide (2) were prepared. In contrast to the structurally related thalidomide (1), supidimide shows no teratogenic activity, but has similar sedative and tranquilizing properties as thalidomide. By means of an X-ray analysis of (R)-(+)-supidimide the differences in the molecular structure of supidimide and thalidomide are discussed. Compared with the racemic mixture, the pure enantiomers of supidimide are better soluble by a factor of 6. The reason for this fact lies in the crystal lattice forces: In the pure enantiomers, the molecules are linked to chains by weak hydrogen bonds, whereas dimeric units occur in the racemic compound, which are built up by strong, centrosymmetrical hydrogen bonds.
    Notes: Ausgehend von D- und L-Ornithin werden die Enantiomeren von Supidimid (2) dargestellt. Im Gegensatz zum strukturverwandten Thalidomid (1) zeigt Supidimid keine teratogene Aktivität, wirkt aber ebenfalls als Sedativum bzw. Tranquilizer. Anhand einer Röntgenstrukturanalyse von (R)-(+)-Supidimid werden die Unterschiede im Molekülbau von Supidimid und Thalidomid verglichen. Die reinen Enantiomeren von Supidimid sind um den Faktor 6 besser löslich als das Racemat. Der Grund hierfür liegt in den Kristallgitterkräften: In den reinen Enantiomeren sind die Moleküle über schwache H-Brücken kettenförmig verknüpft, während im Racemat Dimere vorliegen, die über starke, zentrosymmetrische H-Brücken gebildet werden.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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