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

HRID 504577Notes

Reaction equation

HRID 504577 reaction equation
[Cl:1][C:2]1[CH:7]=[C:6]2[NH:8][C:9](=[O:39])[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]([C:27]([OH:29])=O)([CH3:26])[CH3:25])[CH2:14][C:13](=[O:30])[NH:12][CH:11]3[C:31]3[CH:36]=[C:35]([F:37])[CH:34]=[CH:33][C:32]=3[CH3:38])[C:5]2=[CH:4][CH:3]=1.C1N=CN(C(N2C=NC=C2)=O)C=1.[CH3:52][S:53]([NH2:56])(=[O:55])=[O:54].[H-].[Na+].Cl>CN(C=O)C.O>[Cl:1][C:2]1[CH:7]=[C:6]2[NH:8][C:9](=[O:39])[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]([CH3:25])([CH3:26])[C:27]([NH:56][S:53]([CH3:52])(=[O:55])=[O:54])=[O:29])[CH2:14][C:13](=[O:30])[NH:12][CH:11]3[C:31]3[CH:36]=[C:35]([F:37])[CH:34]=[CH:33][C:32]=3[CH3:38])[C:5]2=[CH:4][CH:3]=1

Participants

8

Reactant 5

HCID 313Hydrochloric AcidHCID 24758Sodium hydrideHCID 682631,1'-CarbonyldiimidazoleHCID 72879MethanesulfonamideHCID 765680156-chloro-4'-[5-chloro-2-(1-hydroxycarbonyl-1-methyl-ethoxy)-phenyl]-2'-(5-fluoro-2-methyl-phenyl) spiro[3H-indole-3,3'-piperidine]-2,6'(1H)-dione

Product 1

HCID 674012216-chloro-4'-[5-chloro-2-(2-methanesulfonylamino-1,1-dimethyl-2-oxo-ethoxy)-phenyl]-2'-(5-fluoro-2-methyl-phenyl)spiro[3H-indole-3,3'-piperidine]-2,6'(1H)-dioneYield 62.8%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6228DimethylformamideSolvent2×

Procedure

A solution of racemic (2′S,3S,4′R)-6-chloro-4′-[5-chloro-2-(1-hydroxycarbonyl-1-methyl-ethoxy)-phenyl]-2′-(5-fluoro-2-methyl-phenyl)spiro[3H-indole-3,3′-piperidine]-2,6′(1H)-dione (16 g, 0.028 mol) prepared in Example 1f and CDI (9 g, 0.056 mol) in DMF (70 mL) was heated at 65° C. for 2 h. Then to this solution was added a mixture of methanesulfonamide (16 g, 0.168 mol) and NaH (5.6 g, 60%, 0.14 mol) in DMF (100 mL), which had been mixed and stirred at room temperature for 2 h. After the resulting mixture was stirred at room temperature for 2 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 recrystallized to give the title compound (11.4 g).

Workup

  1. additionThen to this solution was added
  2. additionhad been mixed
  3. stirringAfter the resulting mixture was stirred at room temperature for 2 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
  8. customby recrystallized

Sources & evidence

ORD record
ord-a5d3d72dc94e42f3855aa386fb00273b
Source dataset
uspto-grants-2010_08
Patent number
US07776875B2

Reaction notes

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