3-(Methoxycarbonyl)benzeneboronic acid → HCID 57413728, compound

Participants

Reaction Steps

4c was prepared using the same procedure as for 5b with [(2R,3S,4S,5R,6R)-4,5-diacetoxy-6-(acetoxymethyl)-2-(4-bromo-2-methyl-phenoxy)tetrahydropyran-3-yl]acetate and 3-methoxycarbonylphenyl boronic acid as the reactants. Yield: 54%. 1H NMR (300 MHz, METHANOL-d4) δ ppm 8.20 (t, J=1.51 Hz, 1H), 7.94 (td, J=1.41, 7.90 Hz, 1H), 7.77-7.87 (m, 1H), 7.52 (t, J=7.55 Hz, 1H), 7.39-7.48 (m, 2H), 7.27-7.38 (m, 1H), 5.56 (d, J=1.65 Hz, 1H), 4.08 (dd, J=1.92, 3.30 Hz, 1H), 3.94-4.01 (m, 1H), 3.90-3.94 (m, 3H), 3.68-3.83 (m, 3H), 3.55-3.65 (m, 1H), 2.31 (s, 3H). MS (ESI): found [M+Na]+, 427.1

Provenance & Evidence