(2,5-Difluorophenyl)boronic acid → 5-(2,4-Difluorophenyl)-3,4-dihydro-7-methoxy-1-(3-methoxycarbonyl-6-methylphenyl)-2(1H)-quinolinone

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Reaction Steps

5-(2,4-Difluorophenyl)-3,4-dihydro-7-methoxy-1-(3-methoxycarbonyl-6-methylphenyl)-2(1H)-quinolinone was prepared from 5-bromo-3,4-dihydro-7-methoxy-1-(3-methoxycarbonyl-6-methylphenyl)-2(1H)-quinolinone (INTERMEDIATE 14) and 2,5-difluorophenylboronic acid by a procedure analogous to that described in INTERMEDIATE 2. Mass spectrum (ESI) 438.1 (M+1). 1H NMR (500 MHz, CDCl3): δ 8.06 (d, J=5.0 Hz, 1H); 7.89 (s, 1H); 7.42 (d, J=5.0 Hz, 2H); 7.01 (m, 2H); 6.49 (s, 1H); 5.86 (s, 1H); 3.95 (s, 3H); 3.68 (s, 3H); 2.81 (m, 4H); 2.21 (s, 3H).

Provenance & Evidence