Sodium Iodide → Tert-butyl 2-((1-(4-fluorophenyl)-4-oxo-8-(3-(2'-oxospiro[cyclopropane-1,3'-indoline]-1'-yl)propyl)-1,3,8-triazaspiro[4.5]decan-3-yl)methyl)benzoate

Participants

Reaction Conditions

Reaction Steps

To a solution of tert-butyl 2-((1-(4-fluorophenyl)-4-oxo-1,3,8-triazaspiro[4.5]decan-3-yl)methyl)benzoate (0.2 g, 0.46 mmol), sodium iodide (0.021 g, 0.14 mmol) and potassium carbonate (0.095 g, 0.7 mmol) in 2-butanone (5 mL), was added 1′-(3-chloropropyl)spiro[cyclopropane-1,3′-indolin]-2′-one (0.107 g, 0.46 mmol). After stirring at 78° C. for 5 hours, the reaction mixture was filtered and isolated by Biotage flash chromatography (1-10% methanol/dichloromethane) and preparatory TLC (10% methanol/dichloromethane) to obtain the title compound (0.13 g, 44%); 1H NMR (DMSO-d6): δ 1.50 (t, 2H, J=6.4 Hz), 1.56-1.60 (m, 11H), 1.69 (d, 2H, J=9.2 Hz), 1.75 (t, 2H, J=6.4 Hz), 2.32-2.34 (m, 4H), 2.64-2.67 (m, 4H), 3.79 (t, 2H, J=6.4 Hz), 4.58 (s, 2H), 4.82 (s, 2H), 6.91-6.92 (m, 2H), 6.97-6.99 (m, 2H), 7.08-7.15 (m, 3H), 7.19 (d, 1H, J=6.8 Hz), 7.25-7.31 (m, 1H), 7.41 (t, 1H, J=8 Hz), 7.57 (t, 1H, J=7.6 Hz), 7.82 (dd, 1H, J=8 and 1.2 Hz); MS for C38H43FN4O4 m/z 639.4 (M+H)+.

Provenance & Evidence