Sodium Carbonate → HCID 59971444, compound

Participants

Reaction Steps

Using Method S above, 4-carboxy-phenyl boronic acid (27.2 mg, 0.164 mmol) (Lancaster) was coupled with (Z)-1,3-dihydro-4-iodo-3-[(3-methoxy-1H-pyrrol-2-yl)methylene]-2H-indol-2-one (50 mg, 0.137 mmol) (Starting Material 3) using (Ph3P)4Pd (4.8 mg) (Aldrich) as catalyst in DME (5 mL) and solid Na2CO3 (51 mg, 0.48 mmol) at reflux for 18 h to give (Z)-4-[2,3-dihydro-3-[(3-methoxy-1H-pyrrol-2-yl)methylene]-2-oxo-1H-indol-4-yl]-benzoic acid (yield: 15 mg, 31%).

Provenance & Evidence