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Syntheses and evaluation of antioxidant activity of sydnonyl substituted thiazolidinone and thiazoline derivatives.
Syntheses of aromatic substituted hydrazino-thiazole derivatives to clarify structural characterization and antioxidant activity between 3-arylsydnonyl and aryl substituted hydrazino-thiazoles.
Results of this study demonstrate that not only the thiazole ring and the aryl ring has the contribution to the antioxidant activities, the sydnone ring of 3-arylsydnonyl moiety also has its considerable contribution.
Efficient syntheses of thiadiazoline and thiadiazole derivatives by the cyclization of 3-aryl-4-formylsydnone thiosemicarbazones with acetic anhydride and ferric chloride
Catalytic Hydration of Nitriles to Amides with Manganese Dioxide on Silica Gel
Syntheses of 5-(3-Arylsydnon-4-yl)tetrazole Derivatives
3-Arylsydnone-4-carbohydroximic acid chlorides (1) could react with sodium azide to produce the corresponding 3-arylsydnone-4-carbazidoximes (2), but not 1-hydroxytetrazoles 3. Treatment of…
Microwave-assisted synthesis of sydnonyl-substituted imidazoles
Access to the syntheses of sydnonyl-substituted α,β-unsaturated ketones and 1,3-dihydro-indol-2-ones by modified Knoevenagel reaction
Studies on the syntheses of heterocycles from 3-arylsydnone-4-carbohydroximic acid chlorides with N-arylmaleimides, [1,4]naphthoquinone and aromatic amines
- Mei-Hsiu Shih
- 23 December 2002
Novel synthesis of palladium (II) complexes derived from 3‐arylsydnone‐4‐carbaldehyde N(4)‐phenylthiosemicarbazones and biological activity
- Mei-Hsiu Shih, Jian-Chyi Chen, G. Lin, Tzu-Ting Lin, Ming-Hsiang Sun
- ChemistryThe Journal of pharmacy and pharmacology
- 1 January 2014
The aim of this research is to investigate whether the oxygen atom O(6) in the sydnone ring of 3‐arylsydnone‐4‐carbaldehyde N(4)‐phenylthiosemicarbazones (HArSYTSCs, 3a–d) is a good electron donor…
A concise synthetic method for sydnonyl-substituted pyrazoline derivatives
- Mei-Hsiu Shih
- 3 December 2003
The pyrazolines have been found to have diverse applications in medicine. They are known to be potent antibiotic or anti-oxidizing agents. Two types of sydnonyl-substituted α,β)-unsaturated ketones…