Triacetoxyperiodinane → HCID 86712605, compound

Participants

Reaction Steps

To a solution of 2-(3-chloro-2-methylphenoxy)ethyl 9-(1-(4-(tert-butoxycarbonyl)-2-chloro-6-fluorobenzyl)-1H-pyrazol-4-yl)-3-hydroxy-3,4-dihydrobenzo[b][1,4]oxazepine-5(2H)-carboxylate (59 mg, 0.086 mmol) in DCM (5.0 mL) was added Dess-Martin periodinane (109 mg, 0.258 mmol). The reaction was stirred at room temperature for 2 d. The mixture was diluted with a solution of saturated sodium bicarbonate (15 mL) and extracted with DCM (20 mL). The organic layer was dried over sodium sulfate and concentrated. The crude product was purified by flash chromatography (0-100% ethyl acetate:hexanes) to afford the title compound (58 mg, 92% yield) as white form. LCMS, [M+H]+=684.3. 1H NMR (400 MHz, CDCl3) δ 7.89-7.86 (m, 1H), 7.83 (d, J=6.8 Hz, 2H), 7.66 (dd, J=9.5, 1.5 Hz, 1H), 7.42 (dd, J=7.7, 1.5 Hz, 1H), 7.18 (br. s., 1H), 7.10-6.95 (m, 3H), 6.68 (d, J=7.3 Hz, 1H), 5.54 (d, J=1.5 Hz, 2H), 4.54 (s, 4H), 4.49 (s, 2H), 4.16 (br. s., 2H), 2.21 (br. s., 3H), 1.59 (s, 9H).

Provenance & Evidence