3-Aminophenylboronic acid → HCID 11277880, compound

Participants

Reaction Steps

The product of Example 22A (284 mg, 1.0 mmol) was treated with 3-aminophenylboronic acid (Lancaster, 276 mg, 2.0 mmol) according to the procedure of Example 1B. The title product was purified by chromatography (SiO2, CH2Cl2:MeOH:NH3.H2O, 90:10:1, Rf. 0.1) as solid (285 mg, yield, 96%). 1H NMR (300 MHz, MeOH-d4) δ 1.48-1.62 (m, 1H), 1.61-1.91 (m, 2H), 2.01-2.16 (m, 1H), 2.22-2.30 (m, 1H), 2.74-3.05 (m, 5H), 3.36-3.47 (m, 1H), 5.12-5.20 (m, 1H), 6.75 (ddd, J=8.2, 2.1, 1.0 Hz, 1H), 6.89 (ddd, J=7.4, 1.7, 1.0 Hz, 1H), 6.93 (t, J=1.8 Hz, 1H), 7.20 (t, J=7.8 Hz, 1H), 8.74 (s, 2H) ppm. MS (DCl/NH3) m/z 297 (M+H)+.

Provenance & Evidence