Hydrochloric Acid → 6-chloro-4'-[5-chloro-2-(1-ethyl-1-methanesulfonylaminocarbonyl-propoxy)-phenyl]-2'-(5-chloro-2-methyl-phenyl)-spiro[3H-indole-3,3'-piperidine]-2,6'(1H)-dione

HRID 504569Notes

Reaction equation

HRID 504569 reaction equation
[Cl:1][C:2]1[CH:7]=[C:6]2[NH:8][C:9](=[O:41])[C:10]3([CH:15]([C:16]4[CH:21]=[C:20]([Cl:22])[CH:19]=[CH:18][C:17]=4[O:23][C:24]([CH2:30][CH3:31])([C:27]([OH:29])=O)[CH2:25][CH3:26])[CH2:14][C:13](=[O:32])[NH:12][CH:11]3[C:33]3[CH:38]=[C:37]([Cl:39])[CH:36]=[CH:35][C:34]=3[CH3:40])[C:5]2=[CH:4][CH:3]=1.C1N=CN(C(N2C=NC=C2)=O)C=1.[CH3:54][S:55]([NH2:58])(=[O:57])=[O:56].[H-].[Na+].Cl>CN(C=O)C.O>[Cl:1][C:2]1[CH:7]=[C:6]2[NH:8][C:9](=[O:41])[C:10]3([CH:15]([C:16]4[CH:21]=[C:20]([Cl:22])[CH:19]=[CH:18][C:17]=4[O:23][C:24]([CH2:25][CH3:26])([C:27]([NH:58][S:55]([CH3:54])(=[O:57])=[O:56])=[O:29])[CH2:30][CH3:31])[CH2:14][C:13](=[O:32])[NH:12][CH:11]3[C:33]3[CH:38]=[C:37]([Cl:39])[CH:36]=[CH:35][C:34]=3[CH3:40])[C:5]2=[CH:4][CH:3]=1

Participants

8

Reactant 5

HCID 313Hydrochloric AcidHCID 24758Sodium hydrideHCID 682631,1'-CarbonyldiimidazoleHCID 72879MethanesulfonamideHCID 722961836-chloro-4'-[5-chloro-2-(1-ethyl-1-hydroxycarbonyl-propoxy)-phenyl]-2'-(5-chloro-2-methyl-phenyl) spiro[3H-indole-3,3'-piperidine]-2,6'(1H)-dione

Product 1

HCID 749286676-chloro-4'-[5-chloro-2-(1-ethyl-1-methanesulfonylaminocarbonyl-propoxy)-phenyl]-2'-(5-chloro-2-methyl-phenyl)-spiro[3H-indole-3,3'-piperidine]-2,6'(1H)-dioneYield 5.9%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6228DimethylformamideSolvent2×

Procedure

A solution of racemic (2′S,3S,4′R)-6-chloro-4′-[5-chloro-2-(1-ethyl-1-hydroxycarbonyl-propoxy)-phenyl]-2′-(5-chloro-2-methyl-phenyl)spiro[3H-indole-3,3′-piperidine]-2,6′(1H)-dione (150 mg, 0.244 mmol) and CDI (80 mg, 0.49 mmol) in DMF (2 mL) was heated at 60° C. for 2 h, then cooled to room temperature. In a separate flask a mixture of methanesulfonamide (231 mg, 2.44 mmol) and NaH (78 mg, 60%, 1.95 mmol) was stirred in DMF (3 mL) at room temperature for 2 h, then the resulting mixture was added into the above solution. The reaction mixture was stirred at room temperature for 1 h, then poured into water and “pH” was acidified to 2-3 by addition of concentrated HCl solution. The mixture was extracted with EtOAc twice, the combined extracts were dried over anhydrous Na2SO4, concentrated and the residue was purified by flash column to give the title compound as a white solid (10 mg).

Workup

  1. additionthe resulting mixture was added into the above solution
  2. extractionThe mixture was extracted with EtOAc twice
  3. dry with materialthe combined extracts were dried over anhydrous Na2SO4
  4. concentrationconcentrated
  5. customthe residue was purified by flash column

Sources & evidence

ORD record
ord-f5995826dd8346d2b492a4f6f8c7b5a9
Source dataset
uspto-grants-2010_08
Patent number
US07776875B2

Reaction notes

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