L-Leucine, N-((1,1-dimethylethoxy)carbonyl)- → HCID 66591128, compound

Participants

Reaction Steps

The title compound was prepared by substituting N-(tert-butoxycarbonyl)-N-methyl-L-norvaline for N-(tert-butoxycarbonyl)-L-leucine and (3aR,4S,6aS)-2-(4-(trifluoromethyl)phenylsulfonyl)octahydrocyclopenta[c]pyrrol-4-amine from Step A of Example 256 for (3aR,4S,6aS)-2-benzyloctahydrocyclopenta[c]pyrrol-4-amine in the procedure described in Example 221: 1H NMR (400 MHz, pyridine-d5, temperature 90° C.) δ ppm 8.06-8.09 (m, 2H), 7.79-7.82 (m, 2H), 7.40 (d, J=3.1 Hz, 1H), 4.66-4.76 (m, 1H), 4.07 (p, J=6.8 Hz, 1H), 3.65 (dd, J=10.2, 3.4 Hz, 1H), 3.28 (dd, J=10.2, 7.7 Hz, 1H), 3.06-3.17 (m, 2H), 2.93 (s, 3H), 2.53-2.62 (m, 1H), 2.45-2.53 (m, 1H), 1.93-2.02 (m, 1H), 1.86-1.95 (m, 1H), 1.70-1.85 (m, 2H), 1.47-1.57 (m, 1H), 1.45 (s, 9H), 1.27-1.37 (m, 2H), 1.22-1.32 (m, 1H), 0.86 (t, J=7.4 Hz, 3H); MS (ESI+) m/z 548 (M+H)+.

Provenance & Evidence