Keywords
1-aroylmethylidene-1
2
2-(pyrazol-3-yl)-O-methylserotonins
2-(pyrazol-3-yl)tryptamine
3
4-tetrahydro-β-carbolines
pyrazolylmelatonins
quantum chemical calculations.
recyclization
tryptamines
β-carbolines
Abstract
A cyclization-recyclization pathway for indirect 2-heteroarylation of tryptamines has been suggested by the example of introducing the pyrazolyl moiety. The process involves the intermediate cyclization of tryptamines into push-pull type β-carboline semi-products. The relative stability of the tautomeric forms of 2-pyrazolyltryptamines has been estimated using the DFT method.
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