Reaction between (Z)-Arylchlorooximes and α-Isocyanoacetamides: A Procedure for the Synthesis of Aryl-α-ketoamide Amides
摘要:
(Z)-Arylchlorooximes and alpha-isocyanoacetamides undergo a smooth reaction to produce 1,3-oxazol-2-oxime derivatives in good yields. Opening of the oxazole ring and deoximation reaction give a facile access to aryl-alpha-ketoamide amides, a class of privileged scaffolds in medicinal chemistry and important synthetic intermediates in organic chemistry.
The reaction of (Z)-hydroximoyl chlorides with isocyanides promoted by phosphinic acid in the presence of triethylamine proceeds smoothly to afford α-(hydroxyimino)amides in good to high yields. Phosphinic acid plays an important role in effectively promoting the reaction. A wide range of (Z)-hydroximoyl chlorides and isocyanides were found to be suitable for this reaction.
A class of pyrimidinone derivatives of formula (I): wherein Z, R
1
, R
2
and R
3
are as defined herein; and pharmaceutically acceptable salts thereof; are inhibitors of viral polymerases, especially (the hepatitis C virus (HCV) polymerase enzyme.
Pd-Catalysed [3 + 2]-cycloaddition towards the generation of bioactive bis-heterocycles/identification of COX-2 inhibitors <i>via in silico</i> analysis
作者:Elagandhula Sathish、Arshad J. Ansari、Gaurav Joshi、Akansha Pandit、Monika Shukla、Neha Kumari、Ashoke Sharon、Ved Prakash Verma、Devesh M. Sawant
DOI:10.1039/d2ob00467d
日期:——
dihydroisoxazole ring by [3 + 2] cycloaddition of VECs (vinylethylene carbonates) and nitrile oxides, assisted by a Pd catalyst. Herein we explored hydroximoyl chlorides as versatile precursors for the in situ generation of nitrile oxides that were exploited to achieve the cycloaddition reaction on a vinyl group of VECs to generate bis-heterocycles. In silico-based studies of bis-heterocycles on the cyclooxygenase
Ghabrial, Sami S.; Thomsen, I.; Torssell, K. B. G., Acta chemica Scandinavica. Series B: Organic chemistry and biochemistry, 1987, vol. 41, p. 426 - 434
作者:Ghabrial, Sami S.、Thomsen, I.、Torssell, K. B. G.