Cyclization reactions of a-ketoarylhydrazonoyl chlorides with various dinucleophiles lead to new 1,4-benzothiazine, quinoxaline, tetrahydropyrazine, thiazole, and thiadiazoline derivatives of methyl butanoate or methyl 5-oxopentanoate. The inhibition of 5-lipoxygenase (LO) was determined by monitori
โฆ LIBER โฆ
ChemInform Abstract: Lipoxygenase Inhibitor. Part 6. Synthesis of New Tetrahydropyrazine and Other Heterocyclic Compounds by Reaction of Hydrazonoyl Chlorides.
โ Scribed by P. FROHBERG; M. WIESE; P. NUHN
- Book ID
- 101850999
- Publisher
- John Wiley and Sons
- Year
- 2010
- Weight
- 32 KB
- Volume
- 28
- Category
- Article
- ISSN
- 0931-7597
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โฆ Synopsis
Synthesis of New Tetrahydropyrazine and Other Heterocyclic Compounds by Reaction of Hydrazonoyl
Chlorides.
-New cyclization reactions with hydrazonoyl chlorides (II), (V), (X) are described. Only dimerization of (X) occurs in the presence of N,N'-diphenyl thiourea. The formed arylhydrazone products (III), (VI), (VIII) are more potent 5-lipoxygenase inhibitors than thiazole (XI). -(FROHBERG,
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