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Beilstein J. Org. Chem. 2014, 10, 3019–3030, doi:10.3762/bjoc.10.320
Graphical Abstract
Scheme 1: Some three-component reactions involving N-aryl-3-oxobutanamides.
Scheme 2: Some Biginelli-type three-component condensations with salicylaldehyde.
Scheme 3: Three-component heterocyclization of 5-amino-3-methylisoxazole (1), salicylaldehyde (2) and N-(2-me...
Figure 1: The possible structure of an intermediate complex in reactions forming the heterocycles 6.
Scheme 4: Possible pathways for the three-component reaction of 5-amino-3-methylisoxazole (1), salicylaldehyd...
Figure 2: Alternative structures 5a and 5'a for dihydroisoxazolopyridine 5a and selected NOESY correlations.
Figure 3: Alternative structures 6a, 6'a and 6''a for compound 6a.
Figure 4: Selected data from NOESY experiments and relative stereochemistry of stereogenic centers at positio...
Figure 5: Molecular structure of compound 6a according to X-ray diffraction data.