5-Ethynyl-2-methylpyridine → HCID 67543365, compound

Participants

Reaction Steps

The coupling of 2,12-dimethyl-6,7,8,9,10,11-hexahydro-5H-7,11-epiminocycloocta[b]indole (110 mg, 0.458 mmol; Example 114A) and 5-ethynyl-2-methylpyridine (107 mg, 0.915 mmol; prepared as described in International Publication No. WO2005090333) was performed according to the procedure described in Example 20 to give the racemic mixture of the title compound as the major of two alkene isomers. The individual enantiomers from this racemic mixture were separated by preparative chiral supercritical fluid chromatography (ChiralPak® OD-H 5 μm column, 21×250 mm, 35° C., 10-50% gradient of CH3OH—CO2 containing 0.1% diethylamine) to afford the title compound as the second-eluting enantiomer: 1H NMR (300 MHz, methanol-d4) δ ppm 1.18-1.41 (m, 2H), 1.48 (dd, J=13, 2 Hz, 1H), 1.65-1.75 (m, 1H), 1.83-2.08 (m, 2H), 2.26 (d, J=17 Hz, 1H), 2.28 (s, 3H), 2.38 (s, 3H), 2.39 (s, 3H), 2.90 (dd, J=18, 7 Hz, 1H), 3.17 (t, J=5 Hz, 1H), 4.13 (s, 1H), 6.64 (d, J=8 Hz, 1H), 6.84-6.91 (m, 1H), 6.92-7.10 (m, 3H), 7.15-7.23 (m, 2H), 7.96 (d, J=2 Hz, 1H); MS (DCI/NH3) m/z 358 (M+H)+.

Provenance & Evidence