4-Amino-1-Boc-piperidine → HCID 59731964, compound

Participants

Reaction Steps

4-Amino-1-N-Boc-piperidine (110 mg, 0.55 mmol) and 2-(R)-benzyloxycarbonylamino-3-(4-chloromethyl-1H-indazol-5-yl)-propionic acid methyl ester (150 mg, 0.34 mmol) was converted into the title compound in a manner analogous to the preparation of [9-(2,2-dimethyl-propyl)-8-oxo-3,6,7,8,9,10-hexahydro-2,3,9-triaza-(S)-cyclohepta[e]inden-7-yl]-acetic acid methyl ester. Crude product was obtained as a dark foam in quantitative yield. Material was carried forward without further purification. 1H NMR (300 MHz, CDCl3): δ=8.05 (m, 1H), 7.35 (m, 6H), 7.15 (m, 1H), 6.27 (m, 1H), 5.28 (m, 1H), 5.15 (s, 2H), 4.87 (d, J=16.5, 1H), 4.63 (m, 1H), 4.47 (m, 1H), 4,24 (m, 1H), 3.99 (m, 1H), 3.49 (m, 1H), 3.04 (m, 1H), 2.83 (m, 2H), 2.63 (m, 1H), 1.90 (m, 1H), 1.74 (m, 2H), 1.58 (s, 9H). MS m/e (M−H)−=532.1.

Provenance & Evidence