Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Anna Koreňová"'
Publikováno v:
Chemical Papers. 67
Straightforward preparation of enantiomerically highly enriched N-substituted aroylalanines has been developed. This process involves the combination of crystallization-induced asymmetric transformation and a conjugate addition of N-nucleophiles to t
Publikováno v:
Proceedings of The 16th International Electronic Conference on Synthetic Organic Chemistry.
Conformationally restricted α -amino acids are valuable tools for studying the spatial requirements for receptor affinity and biological activity of natural amino acids. In this context, proline analogues possessing the characteristics of other amin
Publikováno v:
Collection of Czechoslovak Chemical Communications. 59:2481-2492
Reaction of derivatives of 2-furancarbaldehyde or 2-acetylfuran with malononitrile, methyl cyanoacetate or cyanoacetamide in the presence of secondary amines afforded derivatives of 2-amino-3-furancarboxylic acid in 45 - 88% yields.
Publikováno v:
Collection of Czechoslovak Chemical Communications. 52:192-198
The synthesis of a new type of condensed heterocycle pyrido[3',4':4,5]furo[3,2-b]indole (V) and 1,2,4-triazolo[4'',3'':1',2']pyrido[3',4':4,5]furo[3,2-b]indoles (IX) is described and the substitution nucleophilic reaction with 2-(2-nitrophenyl)-4-chl
Publikováno v:
Collection of Czechoslovak Chemical Communications. 49:1529-1535
The new 1,2,4-triazolo[3''', 4''':6'', 1'']-1,2,4-triazino[4'', 5'':4,5]furo[3,2-b]indoles V and 1-acetyl-9H-pyrrolo[2',3':4,5]furo[3,2-b]indole (IX) were prepared from 1,9-dihydropyrrolo[2',3':4,5]furo[3,2-b]indole-2-carboxhydrazide I and 2-(2-nitro