HCID 135499784, compound → HCID 136016230, compound

Participants

Reaction Steps

To cooled (−40° C.) solution of 1-[2-(1H-thieno[3,2-c]pyrazol-3-yl)-1H-indol-5-yl]-propan-1-one (110 mg, 0.372 mmol, Example 28) in anhydrous tetrahydrofuran (2 mL) is added (2-(1-pyrrolidinylmethyl)phenyl)magnesium bromide (0.25 M in tetrahydrofuran) under nitrogen. After 1 h, the cooling bath is removed and the reaction temperature brought to room temperature. After overnight it is quenched by the addition of saturated ammonium chloride (2 mL). The resulting precipitate is dissolved with water and extracted three times with ethyl acetate (2 mL). The combined extracts are washed with brine and dried over sodium sulfate. Purification by chromatography (10 silica gel cartridge, 1:1 ethyl acetate/heptane) afforded 1-(2-pyrrolidin-1-ylmethyl-phenyl)-1-[2-(1H-thieno[3,2-c]pyrazol-3-yl)-1H-indol-5-yl]-propan-1-ol (50 mg, Example 34) as white powder; 1H NMR [(CD3)2SO)]: δ 13.22 (1H, s), 11.48 (1H, s), 8.73 (1H, s), 7.74 (2H, m), 7.45 (1H, s), 7.41 (1H, t), 7.39-7.25 (4H, m), 6.93 (1H, d), 6.59 (1H, s), 2.68 (1H, d), 2.45 (2H), 2.25 (4H), 2.08 (1H), 1.74 (4H, m), 0.75 (3H, t); LC/MS: 457 (M+H).

Provenance & Evidence