Potassium Carbonate → N-(4-(6-tosyl-6H-pyrrolo[2,3-e][1,2,4]triazolo[4,3-a]pyrazin-1-yl)bicyclo[2.2.2]octan-1-yl)pyrrolidine-1-sulfonamide

HRID 1969768Notes

Reaction equation

HRID 1969768 reaction equation
[S:1]([N:11]1[C:15]2[N:16]=[CH:17][C:18]3[N:19]([C:20]([C:23]45[CH2:30][CH2:29][C:26]([NH2:31])([CH2:27][CH2:28]4)[CH2:25][CH2:24]5)=[N:21][N:22]=3)[C:14]=2[CH:13]=[CH:12]1)([C:4]1[CH:10]=[CH:9][C:7]([CH3:8])=[CH:6][CH:5]=1)(=[O:3])=[O:2].CCN(C(C)C)C(C)C.[N:41]1([S:46](Cl)(=[O:48])=[O:47])[CH2:45][CH2:44][CH2:43][CH2:42]1.C([O-])([O-])=O.[K+].[K+]>CC(N(C)C)=O>[S:1]([N:11]1[C:15]2[N:16]=[CH:17][C:18]3[N:19]([C:20]([C:23]45[CH2:30][CH2:29][C:26]([NH:31][S:46]([N:41]6[CH2:45][CH2:44][CH2:43][CH2:42]6)(=[O:48])=[O:47])([CH2:27][CH2:28]4)[CH2:25][CH2:24]5)=[N:21][N:22]=3)[C:14]=2[CH:13]=[CH:12]1)([C:4]1[CH:10]=[CH:9][C:7]([CH3:8])=[CH:6][CH:5]=1)(=[O:3])=[O:2]

Participants

6

Reactant 4

HCID 11430Potassium CarbonateHCID 81531DiisopropylethylamineHCID 64839021-Pyrrolidinesulfonyl chlorideHCID 580097794-(6-tosyl-6H-pyrrolo[2,3-e][1,2,4]triazolo[4,3-a]pyrazin-1-yl)bicyclo[2.2.2]octan-1-amine

Product 1

HCID 58557257N-(4-(6-tosyl-6H-pyrrolo[2,3-e][1,2,4]triazolo[4,3-a]pyrazin-1-yl)bicyclo[2.2.2]octan-1-yl)pyrrolidine-1-sulfonamide

Reagents, catalysts & solvents 1

HCID 31374DimethylacetamideSolvent

Procedure

A round bottom flask was charged with 4-(6-tosyl-6H-pyrrolo[2,3-e][1,2,4]triazolo[4,3-a]pyrazin-1-yl)bicyclo[2.2.2]octan-1-amine (0.12 g, 0.28 mmol), DIEA (0.48 mL, 2.8 mmol) in DMA (2.75 mL). Pyrrolidine-1-sulfonyl chloride (0.07 g, 0.41 mmol, Matrix) was added dropwise and reaction mixture was stirred at ambient temperature for about 1 h. K2CO3 (0.190 g, 1.37 mmol) was added and the reaction mixture was stirred at ambient temperature for about 16 h. The solvent was removed under reduced pressure. The crude material was purified by flash chromatography on silica gel eluting with a gradient of 0-10% MeOH in DCM to give N-(4-(6-tosyl-6H-pyrrolo[2,3-e][1,2,4]triazolo[4,3-a]pyrazin-1-yl)bicyclo[2.2.2]octan-1-yl)pyrrolidine-1-sulfonamide, which was dissolved in NaOH (1 N aqueous, 1.10 mL, 1.10 mmol) and 1,4-dioxane (1 mL) and heated at about 50° C. for about 1 h. The crude material was purified by preparative reverse phase HPLC (Table 2, Method 1) to give N-(4-(6H-pyrrolo[2,3-e][1,2,4]triazolo[4,3-a]pyrazin-1-yl)bicyclo[2.2.2]octan-1-yl)pyrrolidine-1-sulfonamide (0.042 g, 37%) as a white solid: LC/MS (Table 1, Method a) Rt=1.81 min; MS m/z 416 (M+H)+.

Workup

  1. customreaction mixture
  2. stirringthe reaction mixture was stirred at ambient temperature for about 16 h
  3. customThe solvent was removed under reduced pressure
  4. customThe crude material was purified by flash chromatography on silica gel eluting with a gradient of 0-10% MeOH in DCM

Sources & evidence

ORD record
ord-41cd2d13804b4b4f9ae22ac8742df106
Source dataset
uspto-grants-2013_04
Patent number
US08426411B2

Reaction notes

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