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

HRID 504576Notes

Reaction equation

HRID 504576 reaction equation
[Cl:1][C:2]1[CH:7]=[C:6]2[NH:8][C:9](=[O:40])[C:10]3([CH:15]([C:16]4[CH:21]=[C:20]([Cl:22])[CH:19]=[CH:18][C:17]=4[O:23][CH2:24][C:25]([C:28]([OH:30])=O)([CH3:27])[CH3:26])[CH2:14][C:13](=[O:31])[NH:12][CH:11]3[C:32]3[CH:37]=[C:36]([F:38])[CH:35]=[CH:34][C:33]=3[CH3:39])[C:5]2=[CH:4][CH:3]=1.C1N=CN(C(N2C=NC=C2)=O)C=1.[CH3:53][S:54]([NH2:57])(=[O:56])=[O:55].[H-].[Na+].Cl>CN(C=O)C.O>[Cl:1][C:2]1[CH:7]=[C:6]2[NH:8][C:9](=[O:40])[C:10]3([CH:15]([C:16]4[CH:21]=[C:20]([Cl:22])[CH:19]=[CH:18][C:17]=4[O:23][CH2:24][C:25]([CH3:27])([CH3:26])[C:28]([NH:57][S:54]([CH3:53])(=[O:56])=[O:55])=[O:30])[CH2:14][C:13](=[O:31])[NH:12][CH:11]3[C:32]3[CH:37]=[C:36]([F:38])[CH:35]=[CH:34][C:33]=3[CH3:39])[C:5]2=[CH:4][CH:3]=1

Participants

8

Reactant 5

HCID 313Hydrochloric AcidHCID 24758Sodium hydrideHCID 682631,1'-CarbonyldiimidazoleHCID 72879MethanesulfonamideHCID 765678616-chloro-4'-[5-chloro-2-(2-hydroxycarbonyl-2-methyl-propoxy)-phenyl]-2'-(5-fluoro-2-methylphenyl)spiro[3H-indole-3,3'-piperidine]-2,6'(1H)-dione

Product 1

HCID 866320956-chloro-4'-[5-chloro-2-(3-methanesulfonylamino-2,2-dimethyl-3-oxo-propoxy)-phenyl]-2'-(5-fluoro-2-methyl-phenyl)spiro[3H-indole-3,3'-piperidine]-2,6'(1H)-dioneYield 21.1%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6228DimethylformamideSolvent2×

Procedure

A solution of racemic (2′S,3S,4′R)-6-chloro-4′-[5-chloro-2-(2-hydroxycarbonyl-2-methyl-propoxy)-phenyl]-2′-(5-fluoro-2-methyl-phenyl)spiro[3H-indole-3,3′-piperidine]-2,6′(1H)-dione (300 mg, 0.5 mmol) prepared in Example 20f and CDI (160 mg, 1 mmol) in DMF (2 mL) was heated at 60° C. for 2 h. Then to this solution was added a mixture of methanesulfonamide (285 mg, 3 mmol) and NaH (120 mg, 60%, 3 mmol) in DMF (1 mL), which had been mixed and stirred at room temperature for 2 h. After the resulting mixture was stirred at room temperature for 1 h, it was poured into water and the aqueous solution was acidified to “pH” 1-2 by addition of concentrated HCl. After the aqueous phase was extracted with EtOAc twice, the combined organic layers were dried over anhydrous Na2SO4, concentrated and the residue was purified by flash column to give the title compound as a white solid (70 mg).

Workup

  1. additionThen to this solution was added
  2. additionhad been mixed
  3. stirringAfter the resulting mixture was stirred at room temperature for 1 h
  4. extractionAfter the aqueous phase was extracted with EtOAc twice
  5. dry with materialthe combined organic layers were dried over anhydrous Na2SO4
  6. concentrationconcentrated
  7. customthe residue was purified by flash column

Sources & evidence

ORD record
ord-3eb31fdcc9704d8cb6fc3d2bd7e0a875
Source dataset
uspto-grants-2010_08
Patent number
US07776875B2

Reaction notes

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