Bischler-Napieralski synthesis of some new pyrazole-fused β-carbolines
Zeitschrift für Naturforschung B, 2002•degruyter.com
3-(4-Acylaminopyrazol-5-yl)-4-methylindoles (13a, b), under Bischler-Napieralski reaction
conditions, undergo cyclization at the pyrrolic carbon-2 with ultimate formation of the
corresponding pyrazolo [3, 4: 5′, 6′] pyrido [3, 4-b] indoles (14a, b) as evidenced by
crystal structure analysis of 14a.
conditions, undergo cyclization at the pyrrolic carbon-2 with ultimate formation of the
corresponding pyrazolo [3, 4: 5′, 6′] pyrido [3, 4-b] indoles (14a, b) as evidenced by
crystal structure analysis of 14a.
3-(4-Acylaminopyrazol-5-yl)-4-methylindoles (13a,b), under Bischler-Napieralski reaction conditions, undergo cyclization at the pyrrolic carbon-2 with ultimate formation of the corresponding pyrazolo[3,4:5′,6′]pyrido[3,4-b]indoles (14a,b) as evidenced by crystal structure analysis of 14a.
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