tert-Butyl N-[(10R,11E,14S)-10-methyl-9-oxo-8,16-diazatricyclo[13.3.1.02,7]nonadeca-1(19),2(7),3,5,11,15,17-heptaen-14-yl]carbamate → tert-Butyl N-[(10R,14S)-10-methyl-9-oxo-8,16-diazatricyclo[13.3.1.02,7]nonadeca-1(19),2(7),3,5,15,17-hexaen-14-yl]carbamate

Participants

Reaction Steps

45F (974 mg, 2.475 mmol) in EtOAc (49.500 mL) was added platinum(IV) oxide (56.2 mg, 0.248 mmol). The reaction mixture was charged with H2 balloon and vacuum/H2 several times. The reaction was stirred at rt under H2 overnight. The reaction was filtered and concentrated to give the desired product (0.95 g, 97%) as a brownish solid. 1H NMR (500 MHz, CHLOROFORM-d) δ 8.68 (d, J=5.0 Hz, 1H), 7.47-7.30 (m, 5H), 7.26-7.22 (m, 1H), 6.79 (br. s., 1H), 5.85 (d, J=7.7 Hz, 1H), 4.74 (br. s., 1H), 2.52-2.42 (m, 1H), 2.18-2.07 (m, 1H), 1.66-1.57 (m, 1H), 1.51-1.46 (m, 1H), 1.43 (s, 9H), 1.40-1.33 (m, 1H), 1.07 (br. s., 1H), 1.00 (d, J=6.9 Hz, 3H), 0.83 (d, J=9.9 Hz, 1H). MS (ESI) m/z: 396.2 (M+H)+.

Provenance & Evidence