Acetic Acid → 2,2-dicyclohexyl-N-{(3aS,4S,6aR)-2-[3-(trifluoromethyl)benzyl]octahydrocyclopenta[c]pyrrol-4-yl}acetamide

HRID 2363469Notes

Reaction equation

HRID 2363469 reaction equation
[CH:1]1([CH:7]([CH:19]2[CH2:24][CH2:23][CH2:22][CH2:21][CH2:20]2)[C:8]([NH:10][C@@H:11]2[C@H:18]3[C@H:14]([CH2:15][NH:16][CH2:17]3)[CH2:13][CH2:12]2)=[O:9])[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1.[F:25][C:26]([F:36])([F:35])[C:27]1[CH:28]=[C:29]([CH:32]=[CH:33][CH:34]=1)[CH:30]=O.C(O)(=O)C.C([BH3-])#N>ClCCl>[CH:19]1([CH:7]([CH:1]2[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6]2)[C:8]([NH:10][C@@H:11]2[C@H:18]3[C@H:14]([CH2:15][N:16]([CH2:30][C:29]4[CH:32]=[CH:33][CH:34]=[C:27]([C:26]([F:25])([F:35])[F:36])[CH:28]=4)[CH2:17]3)[CH2:13][CH2:12]2)=[O:9])[CH2:24][CH2:23][CH2:22][CH2:21][CH2:20]1

Participants

6

Reactant 4

HCID 176Acetic AcidHCID 679903-(Trifluoromethyl)benzaldehydeHCID 498716Cyano-borohydrideHCID 462130532,2-Dicyclohexyl-N-((3aS,4S,6aR)-octahydrocyclopenta[c]pyrrol-4-yl)acetamide

Product 1

HCID 462130542,2-dicyclohexyl-N-{(3aS,4S,6aR)-2-[3-(trifluoromethyl)benzyl]octahydrocyclopenta[c]pyrrol-4-yl}acetamide

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

2,2-Dicyclohexyl-N-[(3aS,4S,6aR)-octahydrocyclopenta[c]pyrrol-4-yl]acetamide (154 mg, 0.463 mmol) from Example 53 and 3-(trifluoromethyl)benzaldehyde (0.062 mL, 0.463 mmol) were combined in dichloromethane (5 mL), and then 2 mL of acetic acid was added. The reaction was stirred at room temperature for 20 minutes, and then PS-cyanoborohydride (396 mg, 0.926 mmol) was added. The reaction was stirred at room temperature overnight, then filtered and the resin was washed with dichloromethane. The solvent was removed in vacuo, and the crude material was purified using a silica gel cartridge (Analogix®, Burlington, Wis., RS-25) eluting with 1-10% methanol (2 N ammonia)/dichloromethane to give the title compound: 1H NMR (500 MHz, pyridine-d5) δ ppm 7.73 (s, 1H), 7.66 (d, J=7.7, 1H), 7.56 (s, 1H), 7.50 (t, J=7.7, 1H), 4.51-4.43 (m, 1H), 3.55 (d, J=12.9, 1H), 3.46 (d, J=12.9, 1H), 2.75 (d, J=8.6, 2H), 2.52-2.41 (m, J=8.5, 19.1, 2H), 2.34-2.29 (m, 1H), 2.20 (dd, J=7.7, 9.8, 1H), 2.14 (s, 3H, OAc), 1.96-1.54 (m, 15H), 1.49-1.05 (m, 12H), 1.03-0.93 (m, J=11.7, 21.1, 1H); MS (ESI+) m/z 491 (M+H)+.

Workup

  1. stirringThe reaction was stirred at room temperature overnight
  2. filtrationfiltered
  3. washthe resin was washed with dichloromethane
  4. customThe solvent was removed in vacuo
  5. customthe crude material was purified
  6. washeluting with 1-10% methanol (2 N ammonia)/dichloromethane

Sources & evidence

ORD record
ord-564eb070c9704dc985fe564766327947
Source dataset
uspto-grants-2014_04
Patent number
US08691865B2

Reaction notes

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