Pyridine → HCID 135755507, compound

HRID 494576Notes

Reaction equation

HRID 494576 reaction equation
Cl[NH:2][C:3]1[CH:33]=[CH:32][C:6]2[NH:7][C:8]([C:13]3[C:14](=[O:31])[C:15]([CH2:25][CH2:26][C:27]([CH3:30])([CH3:29])[CH3:28])([CH3:24])[C:16]4[C:21]([C:22]=3[OH:23])=[CH:20][CH:19]=[CH:18][CH:17]=4)=[N:9][S:10](=[O:12])(=[O:11])[C:5]=2[CH:4]=1.[S:34](Cl)([CH3:37])(=[O:36])=[O:35].N1C=CC=CC=1>CC(C)=O>[CH3:28][C:27]([CH3:30])([CH3:29])[CH2:26][CH2:25][C:15]1([CH3:24])[C:16]2[C:21](=[CH:20][CH:19]=[CH:18][CH:17]=2)[C:22]([OH:23])=[C:13]([C:8]2[NH:7][C:6]3[CH:32]=[CH:33][C:3]([NH:2][S:34]([CH3:37])(=[O:36])=[O:35])=[CH:4][C:5]=3[S:10](=[O:12])(=[O:11])[N:9]=2)[C:14]1=[O:31]

Participants

5

Reactant 3

HCID 1049PyridineHCID 31297Methanesulfonyl chlorideHCID 136384756HCID 136384756, compound

Product 1

HCID 135755507HCID 135755507, compound

Reagents, catalysts & solvents 1

HCID 180AcetoneSolvent

Procedure

A solution of Example 42F (0.250 g, 0.510 mmol), mesyl chloride (0.158 mL, 2.04 mmol), and pyridine (0.330 mL, 4.08 mmol) in acetone (3 mL) was stirred at 25° C. for 18 hours. The solution was partitioned between ethyl acetate and dilute citric acid and the layers were separated. The ethyl acetate layer was dried with sodium sulfate, filtered, and concentrated in vacuo. The residue was chromatographed on silica gel eluting with methylene chloride and 2.5% methanol in methylene chloride to give a yellow solid.

Workup

  1. customThe solution was partitioned between ethyl acetate and dilute citric acid
  2. customthe layers were separated
  3. dry with materialThe ethyl acetate layer was dried with sodium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated in vacuo
  6. customThe residue was chromatographed on silica gel eluting with methylene chloride and 2.5% methanol in methylene chloride
  7. customto give a yellow solid

Sources & evidence

ORD record
ord-88c0f9fe3820406fa837b27280526768
Source dataset
uspto-grants-2009_05
Patent number
US07538105B2

Reaction notes

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