3 article(s) from Chebanov, Valentin A
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- Published 31 May 2017
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Scheme 1: Aminoazoles in GBB-3CR and Ugi-4CR.
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Scheme 2: Reactivity of 5-amino-N-aryl-1H-pyrazole-4-carboxamide and 3-amino-5-methylisoxazole in GBB-3CR and...
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Figure 1: Alternative structures A and B for compounds 4 and 6.
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Figure 2: Selected data of HSQC and HMBC experiments for compound 4a.
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Figure 3: Molecular structure of 3-(tert-butylamino)-2-(4-chlorophenyl)-N-(4-fluorophenyl)-1H-imidazo[1,2-b]p...
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Figure 4: Selected data of NOE and HSQC experiments for compound 9d.
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Figure 5: Molecular structure of N-(2-(tert-butylamino)-1-(4-chlorophenyl)-2-oxoethyl)-N-(5-methylisoxazol-3-...
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- Full Research Paper
- Published 17 Dec 2014
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Scheme 1: Some three-component reactions involving N-aryl-3-oxobutanamides.
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Scheme 2: Some Biginelli-type three-component condensations with salicylaldehyde.
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Scheme 3: Three-component heterocyclization of 5-amino-3-methylisoxazole (1), salicylaldehyde (2) and N-(2-me...
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Figure 1: The possible structure of an intermediate complex in reactions forming the heterocycles 6.
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Scheme 4: Possible pathways for the three-component reaction of 5-amino-3-methylisoxazole (1), salicylaldehyd...
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Figure 2: Alternative structures 5a and 5'a for dihydroisoxazolopyridine 5a and selected NOESY correlations.
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Figure 3: Alternative structures 6a, 6'a and 6''a for compound 6a.
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Figure 4: Selected data from NOESY experiments and relative stereochemistry of stereogenic centers at positio...
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Figure 5: Molecular structure of compound 6a according to X-ray diffraction data.
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- Published 30 Nov 2012
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Figure 1: Some MCRs of aminoazoles with controlled switching of the direction.
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Figure 2: Some possible products of MCRs involving 4-amino-5-carboxamido-1,2,3-triazole and carbonyl compound...
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Scheme 1: Multicomponent and sequential reactions of 4-amino-5-carboxamido-1,2,3-triazole with cyclic ketones....
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Scheme 2: Multicomponent and sequential reactions of 4-amino-5-carboxamido-1,2,3-triazole with aldehydes and ...
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