Isopropyl chloroformate → HCID 86701969, compound

Participants

Reaction Steps

To a suspension N-(imidazo[1,2-a]pyridin-7-ylmethyl)-5-(piperidin-4-yl)thiophene-2-carboxamide (0.103 g, 0.249 mmol) in dichloromethane (2 ml) was added N-methylmorpholine (0.110 ml, 0.997 mmol) followed by isopropylchloroformate (0.374 ml, 0.374 mmol). A second portion of isopropylchloroformate (0.4 ml) was added and after 1 hour the mixture was directly purified by normal phase chromatography to give the title compound. 1H NMR (500 MHz, DMSO-d6) δ ppm 9.05 (t, J=6.0 Hz, 1H), 8.51 (d, J=7.0 Hz, 1H), 7.92 (s, 1H), 7.68 (d, J=3.8 Hz, 1H), 7.56 (d, J=1.2 Hz, 1H), 7.40 (d, J=1.4 Hz, 1H), 6.96 (d, J=3.8 Hz, 1H), 6.88 (dd, J=7.0, 1.7 Hz, 1H), 4.78 (hept, J=6.2 Hz, 1H), 4.47 (d, J=5.9 Hz, 2H), 4.05 (d, J=12.9 Hz, 2H), 3.10-2.97 (m, 1H), 2.98-2.81 (m, 2H), 2.01-1.88 (m, 2H), 1.57-1.38 (m, 2H), 1.19 (d, J=6.2 Hz, 6H); MS (ESI(+)) m/e 427 (M+H)+.

Provenance & Evidence