Dimethylformamide → 3-Chloro-N-{6-methyl-2-(1H-pyrazol-4-yl)-3-[3-(1-pyrrolidinyl)phenyl]thieno[2,3-b]pyridin-4-yl}benzenesulfonamide

HRID 573678Notes

Reaction equation

HRID 573678 reaction equation
Br[C:2]1[C:10]2[C:5](=[N:6][C:7]([CH3:22])=[CH:8][C:9]=2[NH:11][S:12]([C:15]2[CH:20]=[CH:19][CH:18]=[C:17]([Cl:21])[CH:16]=2)(=[O:14])=[O:13])[S:4][C:3]=1[C:23]1[CH:24]=[N:25][N:26](C(OC(C)(C)C)=O)[CH:27]=1.CC1(C)C(C)(C)OB([C:43]2[CH:44]=[C:45]([N:49]3[CH2:53][CH2:52][CH2:51][CH2:50]3)[CH:46]=[CH:47][CH:48]=2)O1.C(=O)([O-])[O-].[K+].[K+].CN(C=O)C>C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1.O>[Cl:21][C:17]1[CH:16]=[C:15]([S:12]([NH:11][C:9]2[CH:8]=[C:7]([CH3:22])[N:6]=[C:5]3[S:4][C:3]([C:23]4[CH:27]=[N:26][NH:25][CH:24]=4)=[C:2]([C:47]4[CH:48]=[CH:43][CH:44]=[C:45]([N:49]5[CH2:50][CH2:51][CH2:52][CH2:53]5)[CH:46]=4)[C:10]=23)(=[O:14])=[O:13])[CH:20]=[CH:19][CH:18]=1

Participants

8

Reactant 4

HCID 6228DimethylformamideHCID 11430Potassium CarbonateHCID 185257431-[3-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]pyrrolidineHCID 683240291,1-Dimethylethyl 4-(3-bromo-4-{[(3-chlorophenyl)sulfonyl]amino}-6-methylthieno[2,3-b]pyridin-2-yl)-1H-pyrazole-1-carboxylate

Product 1

HCID 683237583-Chloro-N-{6-methyl-2-(1H-pyrazol-4-yl)-3-[3-(1-pyrrolidinyl)phenyl]thieno[2,3-b]pyridin-4-yl}benzenesulfonamideYield 6.1%

Reagents, catalysts & solvents 3

HCID 178418397HCID 178418397, compoundCatalystHCID 178418476HCID 178418476, compoundCatalystHCID 962WaterSolvent

Conditions

Temperature
100 °C

Procedure

1,1-Dimethylethyl 4-(3-bromo-4-{[(3-chlorophenyl)sulfonyl]amino}-6-methylthieno[2,3-b]pyridin-2-yl)-1H-pyrazole-1-carboxylate (Description 75) (350 mg, 0.599 mmol), 1-[3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]pyrrolidine (327 mg, 1.2 mmol), tetrakis(triphenylphosphine)palladium(0) (34.6 mg, 0.03 mmol), bis(triphenylphosphine)palladium(II) chloride (21.04 mg, 0.030 mmol) and potassium carbonate (249 mg, 1.8 mmol) were charged into a microwave vial. DMF (2.5 mL) and water (1.0 mL) were added and the suspension degassed under nitrogen for ca. 5 min before being subjected to heating in a microwave at 100° C. for 30 min. The reaction mixture was then filtered through celite, rinsed with ethyl acetate (ca. 50 mL) and the solvent removed in vacuo. Purification by chromatography on silica, eluting with a gradient of 0-40% ethyl acetate in DCM followed by 0-20% MeOH in DCM and then further purification by MDAP (acidic conditions) afforded the title compound (20 mg). LCMS (A) m/z: 550 [M+1]+, Rt 1.30 min (basic).

Workup

  1. customthe suspension degassed under nitrogen for ca. 5 min
  2. filtrationThe reaction mixture was then filtered through celite
  3. washrinsed with ethyl acetate (ca. 50 mL)
  4. customthe solvent removed in vacuo
  5. customPurification by chromatography on silica
  6. washeluting with a gradient of 0-40% ethyl acetate in DCM
  7. customfurther purification by MDAP (acidic conditions)

Sources & evidence

ORD record
ord-3e2c9455f7804d5f8688fafb65a708c5
Source dataset
uspto-grants-2015_05
Patent number
US09029545B2

Reaction notes

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