Cesium carbonate → HCID 71766101, compound

Participants

Reaction Steps

A vial was charged with 1-tert-butyl 3-methyl 6-chloro-5-(4-hydroxyphenyl)-1H-indole-1,3-dicarboxylate (30 mg, 0.075 mmol), 1-(2-chloroethyl)-1H-1,2,4-triazole (15 mg, 0.12 mmol) and tetrahydrofuran (1 mL). Cesium carbonate (64 mg, 0.18 mmol) was then added and the vial was sealed and stirred at room temperature for 3 hours then heated to 70° C. for 18 h. The reaction was filtered and the filtrate was concentrated in vacuo. Methanol (1 mL) and 1.0M sodium hydroxide (0.3 mL, 0.3 mmol) were added and the reaction stirred for 18 h at 70° C. The reaction was then concentrated in vacuo and purified by reverse phase HPLC to provide 1 mg of the title compound. MS (ES+) 383.1 (M+H)+. Retention time=2.38 minutes (Waters Atlantis dC18 4.6×50, 5 μm; Mobile phase A: 0.05% TFA in water (v/v); Mobile phase B: 0.05% TFA in MeCN (v/v); Gradient: 95:5 A:B linear to 5:95 A:B in 4.0 min, hold at 5:95 A:B to 5.0 min. Flow: 2 mL/min).

Provenance & Evidence