2-Chloro-4-methoxybenzeneboronic acid → HCID 23541924, compound

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Reaction Steps

The title compound was prepared by the method of Example 90 from tert-butyl (±)-cis-2-bromo-4,5,7,8,10,10a-hexahydropyrido[4,3-b]pyrrolo[3,2,1-hi]indole-9(6aH)-carboxylate (121 mg, 0.27 mmol) and corresponding 2-chloro-4-methoxyphenylboronic acid (100 mg, 0.54 mmol), to afford after chromatographic purification the title compound (141 mg, 68%) as a white amorphous solid. 1H NMR (CDCl3, 300 MHz) δ 7.21 (d, 1H, J=8.4 Hz), 6.94-6.99 (m, 3H), 6.82 (dd, 1H, J=2.9 Hz, 8.8 Hz), 3.75-4.00 (m, 7H), 3.60-3.70 (m, 1H), 3.10-3.50 (m, 7H), 2.80-3.00 (m, 1H), 1.70-1.90 (m, 2H), 1.48 (s, 9H) ppm. MS (CI, NH3): 441 (base, M+H).

Provenance & Evidence