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. Author manuscript; available in PMC: 2015 Feb 5.
Published in final edited form as: Tetrahedron Lett. 2014 Jan 3;55(6):1154–1158. doi: 10.1016/j.tetlet.2013.12.081

Scheme 1.

Scheme 1

Synthesis of indolylnicotinonitriles (13a–e). Reagents and conditions: (a) piperidine (1 mL), ethylene glycol (1 mL), MW irradiation (W 250 and T 150 °C).