Potassium Phosphate, Tribasic → 1-[2-[3-(3-methanesulfonyl-pyrrolidin-1-yl)-phenyl]-5-(2-trimethylsilanyl-ethoxymethyl)-5H-pyrrolo[2,3-b]pyrazin-7-yl]-2,2-dimethyl-propan-1-one

HRID 1677427Notes

Reaction equation

HRID 1677427 reaction equation
[CH3:1][C:2]([CH3:46])([CH3:45])[C:3]([C:5]1[C:13]2[C:8](=[N:9][CH:10]=[C:11]([C:14]3[CH:15]=[C:16](OS(C(F)(F)C(F)(F)C(F)(F)C(F)(F)F)(=O)=O)[CH:17]=[CH:18][CH:19]=3)[N:12]=2)[N:7]([CH2:37][O:38][CH2:39][CH2:40][Si:41]([CH3:44])([CH3:43])[CH3:42])[CH:6]=1)=[O:4].[CH3:47][S:48]([CH:51]1[CH2:55][CH2:54][NH:53][CH2:52]1)(=[O:50])=[O:49].CC1(C)C2C(=C(P(C3C=CC=CC=3)C3C=CC=CC=3)C=CC=2)OC2C(P(C3C=CC=CC=3)C3C=CC=CC=3)=CC=CC1=2.[O-]P([O-])([O-])=O.[K+].[K+].[K+]>C1(C)C=CC=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd]>[CH3:47][S:48]([CH:51]1[CH2:55][CH2:54][N:53]([C:16]2[CH:15]=[C:14]([C:11]3[N:12]=[C:13]4[C:5]([C:3](=[O:4])[C:2]([CH3:1])([CH3:45])[CH3:46])=[CH:6][N:7]([CH2:37][O:38][CH2:39][CH2:40][Si:41]([CH3:44])([CH3:43])[CH3:42])[C:8]4=[N:9][CH:10]=3)[CH:19]=[CH:18][CH:17]=2)[CH2:52]1)(=[O:50])=[O:49]

Participants

7

Reactant 4

HCID 62657Potassium Phosphate, TribasicHCID 6360441,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine)HCID 34193563-(methylsulfonyl)pyrrolidineHCID 595406441,1,2,2,3,3,4,4,4-nonafluoro-butane-1-sulfonic acid 3-[7-(2,2-dimethyl-propionyl)-5-(2-trimethylsilanyl-ethoxymethyl)-5H-pyrrolo[2,3-b]pyrazin-2-yl]-phenyl ester

Product 1

HCID 595409571-[2-[3-(3-methanesulfonyl-pyrrolidin-1-yl)-phenyl]-5-(2-trimethylsilanyl-ethoxymethyl)-5H-pyrrolo[2,3-b]pyrazin-7-yl]-2,2-dimethyl-propan-1-oneYield 84.5%

Reagents, catalysts & solvents 2

HCID 9811564Bis(dibenzylideneacetone)palladiumCatalystHCID 1140TolueneSolvent

Conditions

Temperature
115 °C

Procedure

A mixture of 1,1,2,2,3,3,4,4,4-nonafluoro-butane-1-sulfonic acid 3-[7-(2,2-dimethyl-propionyl)-5-(2-trimethylsilanyl-ethoxymethyl)-5H-pyrrolo[2,3-b]pyrazin-2-yl]-phenyl ester (120 mg, 0.17 mmol), 3-methanesulfonyl-pyrrolidine (˜40 mg, 0.26 mmol), Pd2(dba)3 (8 mg, 0.009 mmol), Xantphos (11 mg, 0.02 mmol), and K3PO4 (72 mg, 0.34 mmol) in toluene (1.5 mL) was stirred in a sealed tube under argon at 115° C. overnight. The resulting mixture was partitioned between ethyl acetate and water. The combined organic layers were dried over Na2SO4 and concentrated. The crude product was purified by flash chromatography using 4 g of silica gel and 20-100% EtOAc in hexanes as eluant to afford 0.08 g of impure 1-[2-[3-(3-methanesulfonyl-pyrrolidin-1-yl)-phenyl]-5-(2-trimethylsilanyl-ethoxymethyl)-5H-pyrrolo[2,3-b]pyrazin-7-yl]-2,2-dimethyl-propan-1-one. M+Na 579.

Workup

  1. customThe resulting mixture was partitioned between ethyl acetate and water
  2. dry with materialThe combined organic layers were dried over Na2SO4
  3. concentrationconcentrated
  4. customThe crude product was purified by flash chromatography

Sources & evidence

ORD record
ord-439890579911474f86991a3bdc08f501
Source dataset
uspto-grants-2011_08
Patent number
US08008298B2

Reaction notes

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