1,2-Pyrrolidinedicarboxylic acid, 1-(1,1-dimethylethyl) ester, (2S)- → tert-butyl methyl((S)-1-oxo-1-((3aR,4S,6aS)-2-(3-(trifluoromethyl)phenylsulfonyl)octahydrocyclopenta[c]pyrrol-4-ylamino)hexan-2-yl)carbamate

Participants

Reaction Steps

The title compound was prepared by substituting N-(tert-butoxycarbonyl)-N-methyl-L-norleucine for (S)-1-(tert-butoxycarbonyl)pyrrolidine-2-carboxylic acid and (3aR,4S,6aS)-2-(3-(trifluoromethyl)phenylsulfonyl)octahydrocyclopenta[c]pyrrol-4-amine from Step D of Example 252 for (3aS,4R,6aR)-2-(3-(trifluoromethyl)phenylsulfonyl)octahydrocyclopenta[c]pyrrol-4-amine in the procedure described in Example 266: 1H NMR (500 MHz, pyridine-d5) δ ppm 8.44 (d, J=6.9 Hz, 1H), 8.36-8.38 (bs, 1H), 8.19 (d, J=7.9 Hz, 1H), 7.91 (d, J=7.6 Hz, 1H), 7.72 (t, J=7.8 Hz, 1H), 5.0 (m, 0.7H), 4.6 (m, 0.3H), 4.18-4.24 (m, 1H), 3.83-3.86 (m, 1H), 3.13-3.19 (m, 1H), 3.08-3.13 (m, 1H), 2.97-3.10 (bs, 3H), 2.91 (dd, J=9.4, 7.4 Hz, 1H), 2.44-2.59 (m, 2H), 1.98-2.19 (m, 1H), 1.84-1.98 (m, 1H), 1.72-1.85 (m, 2H), 1.47-1.60 (m, 1H), 1.44-1.46 (m, 9H), 1.22-1.34 (m, 1H), 1.15-1.34 (m, 4H), 0.76-0.81 (m, 3H); MS (ESI+) m/z 562 (M+H)+, 579 (M+NH4)+.

Provenance & Evidence