反应详情

A mixture of 5-(3-bromophenyl)-4-(1H-indol-5-ylamino)nicotinonitrile 113 (39 mg, 0.1 mmol), (Ph3P)4Pd (2.3 mg, 0.002 mmol) and 2M aq. Na2CO3 (0.1 mL) in DME (2 mL) was degassed by bubbling nitrogen for 5 min., then 3-aminophenylboronic acid (17 mg, 0.11 mmol) was added and the mixture was heated at reflux for 12 h. After cooling to r.t., the mixture was filtered and the filtrate was purified by preparative HPLC to give 5-(3′-aminobiphenyl-3-yl)-4-(1H-indol-5-ylamino)nicotinonitrile 117. MS: 402 (M+H), HPLC retention time: 1.72 min.(a).

1. customwas degassed
2. customby bubbling nitrogen for 5 min.
3. temperaturethe mixture was heated
4. temperatureat reflux for 12 h
5. filtrationthe mixture was filtered
6. customthe filtrate was purified by preparative HPLC