4-Methoxycarbonylphenylboronic acid → methyl 4'-((N-(3-(benzyloxy)-4-(benzyloxycarbonyl)phenyl)-2-(N,4-dimethyl phenylsulfonamido)acetamido)methyl)terphenyl-4-carboxylate

Participants

Reaction Steps

Aryl halide 5 was coupled to 4-(methoxycarbonyl)phenylboronic acid to give 39 on a 0.1 mmol scale via General Procedure H (59 mg, 47%): δH (400 MHz, CDCl3) 2.38 (s, 3H, CH3), 2.83 (s, 3H, CH3), 3.69 (s, 2H, CH2), 3.93 (s, 3H, CH3), 4.84 (s, 2H, CH2), 5.02 (s, 2H, CH2), 5.35 (s, 2H, CH2), 6.64 (s, 1H, CH), 6.70 (dd, J=8.4 and 1.6 Hz, 1H, CH), 7.20 (d, J=8.0 Hz, 2H, CH), 7.24-7.28 (m, 6H, CH), 7.30-7.33 (m, 5H, CH), 7.36-7.41 (m, 3H, CH), 7.54 (d, J=8.4 Hz, 2H, CH), 7.61 (d, J=8.4 Hz, 2H, CH), 7.64-7.73 (m, 6H, CH), 7.85 (d, J=8.4 Hz, 1H, CH). LRMS (ES+) calcd for [C52H46N2O8S+H] 881.29. found 881.39.

Provenance & Evidence