Azetidine → 2-(Azetidin-1-ylcarbonyl)-7-chlorothieno[3,2-b]pyridine

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Reaction Steps

This material was prepared from lithium 7-chlorothieno[3,2-b]pyridine-2-carboxylate (100 mg, 0.47 mmole) by treatment with thionyl chloride followed by coupling with azetidine, in a manner as previously described for example 9d to afford 98 mg (83%) of a dark yellow solid. 1H NMR (DMSO-d6) δ8.72 (1H, d, J=5.1 Hz), 7.96 (1H, s), 7.70 (1H, d, J=5.1 Hz), 4.62 (2H, t, J=7.4 Hz), 4.12 (2H, t, J=7.7 Hz), 2.34 (2H, tt, J=7.4, 7.7 Hz). Anal. Calcd for C11H9N2OSCl: C, 52.28; H, 3.59; Cl, 14.03; N, 11.09; S, 12.69. Found: C, 52.39; H, 3.63; Cl, 14.29; N, 10.99; S, 12.74.

Provenance & Evidence