p-Toluenesulfonic acid → HCID 24993956, compound

HRID 1991357Notes

Reaction equation

HRID 1991357 reaction equation
[F:1][C:2]([F:33])([F:32])[C:3]1[CH:4]=[C:5]([C@H:13]([O:15][C@H:16]2[CH2:24][CH2:23][C@@H:22]3[C@@H:18]([CH2:19][NH:20][CH2:21]3)[C@@H:17]2[C:25]2[CH:30]=[CH:29][C:28]([F:31])=[CH:27][CH:26]=2)[CH3:14])[CH:6]=[C:7]([C:9]([F:12])([F:11])[F:10])[CH:8]=1.[C:34]1(=O)[CH2:38][CH2:37][C:36](=[O:39])[CH2:35]1.CC1C=CC(S(O)(=O)=O)=CC=1>C1(C)C=CC=CC=1>[F:33][C:2]([F:1])([F:32])[C:3]1[CH:4]=[C:5]([C@H:13]([O:15][C@H:16]2[CH2:24][CH2:23][C@@H:22]3[C@@H:18]([CH2:19][N:20]([C:34]4[CH2:38][CH2:37][C:36](=[O:39])[CH:35]=4)[CH2:21]3)[C@@H:17]2[C:25]2[CH:26]=[CH:27][C:28]([F:31])=[CH:29][CH:30]=2)[CH3:14])[CH:6]=[C:7]([C:9]([F:12])([F:10])[F:11])[CH:8]=1

Participants

5

Reactant 3

HCID 6101p-Toluenesulfonic acidHCID 774661,3-CyclopentanedioneHCID 21099325HCID 21099325, compound

Product 1

HCID 24993956HCID 24993956, compound

Reagents, catalysts & solvents 1

HCID 1140TolueneSolvent

Procedure

To a solution of 12.3 mg (0.26 mmol) of (3aR,4R,5S,7aR)-5-{(1R)-1-[3,5-bis(trifluoromethyl)phenyl]ethoxy}4-(4-fluorophenyl)octahydro-1H-isoindole (Example 2) in -2 mL dry toluene was added 2.7 mg (0.028 mmol) cyclopentane-1,3-dione and a catalytic amount (˜0.5 mg) of PTSA. The resulting mixture was heated at reflux for 16 hr. The solvent was removed vacuum and the residue was purified by prep TLC eluting with EtOAc/MeOH (95/5) to afford the title compound. 1H-NMR (CDCl3): δ: 7.73 (1H, s), 7.20 (2H, s), 7.03-6.90 (2H, m), 4.98, 4.80 (1H, s), 4.50 (1H, m), 3.62-3.18 (2H, m), 3.30-3.18 (3H, m), 3.15, 2.97 (1H, d, J=11.2 Hz), 2.68 (2H, m), 2.55-2.40 (4H, m), 2.17 (1H, m), 2.20 (1H, m), 2.00 (1H, m), 1.85 (1H, m), 1.62 (1H, m), 1.33 (3H, d, J=6.2 Hz). MS: (MH)+556.0.

Workup

  1. temperatureThe resulting mixture was heated
  2. temperatureat reflux for 16 hr
  3. customThe solvent was removed vacuum
  4. customthe residue was purified by prep TLC
  5. washeluting with EtOAc/MeOH (95/5)

Sources & evidence

ORD record
ord-e9c8c0476b374fef8f78ace5f5f95506
Source dataset
uspto-grants-2010_01
Patent number
US07645790B2

Reaction notes

Loading…