Acetyl chloride → Racemic (2'S,3S,4'R)-4'-[2-(1-acetyl-4-piperidinyloxy)-5-bromo-phenyl]-6-chloro-2'-(3-fluorophenyl)spiro[3H-indole-3,3'-piperidine]-2,6'(1H)-dione

HRID 504506Notes

Reaction equation

HRID 504506 reaction equation
[Br:1][C:2]1[CH:3]=[CH:4][C:5]([O:32][CH:33]2[CH2:38][CH2:37][NH:36][CH2:35][CH2:34]2)=[C:6]([CH:8]2[CH2:13][C:12](=[O:14])[NH:11][CH:10]([C:15]3[CH:20]=[CH:19][CH:18]=[C:17]([F:21])[CH:16]=3)[C:9]32[C:29]2[C:24](=[CH:25][C:26]([Cl:30])=[CH:27][CH:28]=2)[NH:23][C:22]3=[O:31])[CH:7]=1.[C:39](Cl)(=[O:41])[CH3:40].C(N(CC)CC)C>O1CCCC1>[C:39]([N:36]1[CH2:37][CH2:38][CH:33]([O:32][C:5]2[CH:4]=[CH:3][C:2]([Br:1])=[CH:7][C:6]=2[CH:8]2[CH2:13][C:12](=[O:14])[NH:11][CH:10]([C:15]3[CH:20]=[CH:19][CH:18]=[C:17]([F:21])[CH:16]=3)[C:9]32[C:29]2[C:24](=[CH:25][C:26]([Cl:30])=[CH:27][CH:28]=2)[NH:23][C:22]3=[O:31])[CH2:34][CH2:35]1)(=[O:41])[CH3:40]

Participants

5

Reactant 3

HCID 6367Acetyl chlorideHCID 8471TriethylamineHCID 74928442Racemic (2'S,3S,4'R)-4'-[5-bromo-2-(4-piperidinyloxy)-phenyl]-6-chloro-2'-(5-fluorophenyl)spiro[3H-indole-3,3'-piperidine]-2,6'(1H)-dione

Product 1

HCID 74928772Racemic (2'S,3S,4'R)-4'-[2-(1-acetyl-4-piperidinyloxy)-5-bromo-phenyl]-6-chloro-2'-(3-fluorophenyl)spiro[3H-indole-3,3'-piperidine]-2,6'(1H)-dione

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

To a mixture of racemic (2′S,3S,4′R)-4′-[5-bromo-2-(4-piperidinyloxy)-phenyl]-6-chloro-2′-(3-fluorophenyl)spiro[3H-indole-3,3′-piperidine]-2,6′(1H)-dione (60 mg, 0.1 mmol), acetyl chloride (9.4 mg, 0.12 mmol) in tetrahydrofuran (2 mL) was added triethylamine (0.027 mL, 0.2 mmol) at r.t. The reaction mixture was stirred for 4 h, then concentrated and partitioned between ethyl acetate and water. The organic layer was separated, and the aqueous layer was extracted with ethyl acetate. The combined organic layers were dried over MgSO4 and concentrated. The residue was triturated in dichloromethane and hexanes to give the title compound as a off white solid (Yield: 43 mg).

Workup

  1. concentrationconcentrated
  2. custompartitioned between ethyl acetate and water
  3. customThe organic layer was separated
  4. extractionthe aqueous layer was extracted with ethyl acetate
  5. dry with materialThe combined organic layers were dried over MgSO4
  6. concentrationconcentrated
  7. customThe residue was triturated in dichloromethane

Sources & evidence

ORD record
ord-d8720a13c74648b4aea41617a661cc25
Source dataset
uspto-grants-2010_08
Patent number
US07776875B2

Reaction notes

Loading…