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1999 (1)
1997 (1)
1Author    Z. NaturforschRequires cookie*
 Title    Acyclo C-Nucleosides Analogues of Condensed 1,2,4-Triazines  
 Abstract    1-Acyclo C-nucleosides of 7-methyl-10//-l,2,4-triazolo[3,,4':3,4][l,2,4]triazino[5,6-£>]indoles (9) have been prepared by cyclodehydrogenation of the sugar derivatives of 3-hydrazino-8-methyl-5//-l,2,4-triazino[5,6-6]indole (1). The respective linear isomer as 4 has been pre­ pared by a dehydrative cyclization of the amides of 1. Acetylation of the sugar hydrazones and their cyclized products gave the per-7V,0-acetyl derivatives. The molecular connectivity of the products was established by *H, 13C, and 2D H ,H Cosy spectra. 
  Reference    Z. Naturforsch. 52b, 873—882 (1997); received February 17 1997 
  Published    1997 
  Keywords    Acyclo C-Nucleoside, 1, 2, 4-Triazine, Indole, Triazinoindole, Triazolotriazinoindole 
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 TEI-XML for    default:Reihe_B/52/ZNB-1997-52b-0873.pdf 
 Identifier    ZNB-1997-52b-0873 
 Volume    52 
2Author    SanaaM. EldinRequires cookie*
 Title    Reactions of Cyanothioacetamide Derivatives with 2-Hydrazinothiazol-4(5//)-one: Synthesis, Cyclization and Biological Evaluation of Several New Annelated Pyran, Thiazole, 1,2,4-Triazole and 1,2,4-Triazine Derivatives  
 Abstract    The thiocarboxamidocinnamonitriles (2) reacted with 2-hydrazinothiazol-4(5//)-one (3) to afford the corresponding pyrano[2,3-d]thiazoles (6). Compounds 6 were used for the synthe­ sis of several new annelated pyran, thiazole, 1,2,4-triazole and 1,2,4-triazine derivatives via their reactions with chloroacetic acid, ethyl chloroformate, diethyl oxalate and acetylacetone. Structures were established based on elemental and spectral data studies. Some of the newly synthesized heterocyclic derivatives were tested for their antimicrobial activity. 
  Reference    Z. Naturforsch. 54b, 1589—1597 (1999); received July 2 1999 
  Published    1999 
  Keywords    Thiocaboxamidocinnamonitriles, Pyrans, Thiazoles, 1, 2, 4-Triazoles, 1, 2, 4-Triazines 
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 TEI-XML for    default:Reihe_B/54/ZNB-1999-54b-1589.pdf 
 Identifier    ZNB-1999-54b-1589 
 Volume    54