Iodoethane → HCID 69359516, compound

Participants

Reaction Steps

To a solution of methyl 4-(1,1-dioxidotetrahydro-2H-1,2-thiazin-2-yl)-1H-indole-6-carboxylate (D231) (180 mg, 0.58 mmol, 1 equiv) in DMF (3 ml) at room temperature was added NaH (60% dispersion in mineral oil, 24 mg, 0.6 mmol, 1 equiv) and the resulting mixture was stirred 15 min at this temperature. Ethyl iodide (64 μl, 0.8 mmol, 1.4 equiv) was added and the resulting solution was stirred for 1 h then concentrated in vacuo. The residue was dissolved in AcOEt and the organic phase was washed with a 2N aqueous HCl solution, dried over MgSO4 and concentrated in vacuo. Purification of the residue by flash chromatography on silica gel gave methyl 4-(1,1-dioxidotetrahydro-2H-1,2-thiazin-2-yl)-1-ethyl-1H-indole-6-carboxylate (B147) (110 mg, 51%) as a yellow solid which was used in the next step without further purification. [M+H]+=337.0, RT=2.82 min.

Provenance & Evidence