反应详情

(R)-5-Amino-3-(N-methylpyrrolidin-2-ylmethyl)-1H-indole and 2-chloro-4-methyl-3-nitropyridine were used. Triethylamine was used as base, absolute ethanol was used as solvent, and the reaction was heated at reflux for 24 hours. Column chromatography afforded the title compound (34%) as a red amorphous solid: 1H NMR (CDCl3) δ 9.26 (br s, NH), 8.79 (br s, NH), 8.10 (d, J=4.8 Hz, 1H), 7.64 (d, J=1.7 Hz, 1H), 7.29 (d, J=8.5 Hz, 1H)), 7.17 (dd, J=8.5 and 1.9 Hz, 1H), 6.97 (d, J=2.2 Hz, 1H), 6.56 (d, J=4.8 Hz, 1H), 3.25-3.16 (m, 2H), 2.67 (dd, J=13.2 and 9.4 Hz, 1H), 2.64-2.56 (m, 1H), 2.56 (s, 3H), 2.46 (s, 3H), 2.30 (dd, J=17.7 and 9.4 Hz, 1H), 1.90-1.60 (m, 4H); 13C NMR (CDC3) δ 152.2, 151.5, 146.6, 134.3, 131.0, 130.0, 127.9, 123.4, 119.4, 117.1, 114.0, 113.3, 111.6, 67.0, 57.4, 40.7, 31.4, 29.5, 21.8, 21.7; FAB HRMS calculated for [C20H23N5O2.H] 366.1932, found 366.1957.

1. temperaturethe reaction was heated
2. temperatureat reflux for 24 hours