Triethylamine → Methanesulfonic acid 2-(4-{2-[4-(2-pyrrolidin-1-yl-ethoxy)-phenylamino]-[1,2,4]triazolo[1,5-a]pyridin-5-yl}-pyrazol-1-yl)-ethyl ester

HRID 1971594Notes

Reaction equation

HRID 1971594 reaction equation
[N:1]1([CH2:6][CH2:7][O:8][C:9]2[CH:14]=[CH:13][C:12]([NH:15][C:16]3[N:32]=[C:19]4[CH:20]=[CH:21][CH:22]=[C:23]([C:24]5[CH:25]=[N:26][N:27]([CH2:29][CH2:30][OH:31])[CH:28]=5)[N:18]4[N:17]=3)=[CH:11][CH:10]=2)[CH2:5][CH2:4][CH2:3][CH2:2]1.C(N(CC)CC)C.[CH3:40][S:41](Cl)(=[O:43])=[O:42]>ClCCl>[N:1]1([CH2:6][CH2:7][O:8][C:9]2[CH:10]=[CH:11][C:12]([NH:15][C:16]3[N:32]=[C:19]4[CH:20]=[CH:21][CH:22]=[C:23]([C:24]5[CH:25]=[N:26][N:27]([CH2:29][CH2:30][O:31][S:41]([CH3:40])(=[O:43])=[O:42])[CH:28]=5)[N:18]4[N:17]=3)=[CH:13][CH:14]=2)[CH2:2][CH2:3][CH2:4][CH2:5]1

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 31297Methanesulfonyl chlorideHCID 595895442-(4-{2-[4-(2-Pyrrolidin-1-yl-ethoxy)-phenylamino]-[1,2,4]triazolo[1,5-a]pyridin-5-yl}-pyrazol-1-yl)-ethanol

Product 1

HCID 59589683Methanesulfonic acid 2-(4-{2-[4-(2-pyrrolidin-1-yl-ethoxy)-phenylamino]-[1,2,4]triazolo[1,5-a]pyridin-5-yl}-pyrazol-1-yl)-ethyl ester

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a stirred solution of 2-(4-{2-[4-(2-pyrrolidin-1-yl-ethoxy)-phenylamino]-[1,2,4]triazolo[1,5-a]pyridin-5-yl}-pyrazol-1-yl)-ethanol (0.55 g, 1.28 mmol) in dichloromethane (5 ml) was added triethylamine (450 μl, 3.20 mmol) followed by methanesulfonyl chloride (200 μl, 2.56 mmol). The mixture was stirred for 18 hours at room temperature, and partitioned between ethyl acetate and ammonium chloride. The aqueous phase was extracted multiple times with ethyl acetate, and the combined organic phases dried over magnesium sulfate, filtered and concentrated in vacuo to provide a white fluffy solid. No further purification was required. Yield: 0.34 g, 52%; LCMS method: 2, RT: 2.25 min, MI: 512 [M+1].

Workup

  1. custompartitioned between ethyl acetate and ammonium chloride
  2. extractionThe aqueous phase was extracted multiple times with ethyl acetate
  3. dry with materialthe combined organic phases dried over magnesium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated in vacuo
  6. customto provide a white fluffy solid
  7. customNo further purification

Sources & evidence

ORD record
ord-e8e755472ea74307a13336bf1c8e15a5
Source dataset
uspto-grants-2013_04
Patent number
US08431596B2

Reaction notes

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