Cesium carbonate → 6-{[2-(Azetidin-1-ylcarbonyl)thieno[3,2-b]pyridin-7-yl]oxy)-2-ethylbenzo[b]thiophene-3-carboxylic acid methylamide

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Reaction Steps

This material was prepared by reacting 2-(azetidin-1-ylcarbonyl)-7-chlorothieno[3,2-b]pyridine 25a (97 mg, 0.40 mmole) with 2-ethyl-6-hydroxybenzo[b]thiophene-3-carboxylic acid methylamide 134d (113 mg, 0.48 mmole) and Cs2CO3 (391 mg, 1.2 mmole)in a manner similar to that previously described for example 1 to give a yellow solid (120 mg, 52%). 1H NMR (DMSO-d6, 300 MHz) δ8.59 (1H, d, J=5.67 Hz), 8.31 (1H, m), 7.98 (1H, d, J=2.27 Hz), 7.89 (1H, s), 7.81 (1H, d, J=8.69 Hz), 7.33 (1H, dd, J=1.51, 8.69 Hz), 6.76 (1H, d, J=5.29 Hz), 4.62 (2H, t, J=7.37 Hz), 4.11 (2H, t, J=7.37 Hz), 3.00 (2H, q, J=7.55 Hz), 2.83 (3H, d, J=4.53 Hz), 2.35 (2H, m), 1.28 (3H, t, J=7.55 Hz).

Provenance & Evidence