Pyridine → methyl 3-[4-(7-[2-(trimethylsilyl)ethoxy]methyl-7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1H-pyrazol-1-yl]pentyl carbonate

HRID 1843537Notes

Reaction equation

HRID 1843537 reaction equation
[CH3:1][Si:2]([CH3:28])([CH3:27])[CH2:3][CH2:4][O:5][CH2:6][N:7]1[C:11]2[N:12]=[CH:13][N:14]=[C:15]([C:16]3[CH:17]=[N:18][N:19]([CH:21]([CH2:25][CH3:26])[CH2:22][CH2:23][OH:24])[CH:20]=3)[C:10]=2[CH:9]=[CH:8]1.N1C=CC=CC=1.Cl[C:36]([O:38][CH3:39])=[O:37]>O>[C:36](=[O:37])([O:24][CH2:23][CH2:22][CH:21]([N:19]1[CH:20]=[C:16]([C:15]2[C:10]3[CH:9]=[CH:8][N:7]([CH2:6][O:5][CH2:4][CH2:3][Si:2]([CH3:27])([CH3:1])[CH3:28])[C:11]=3[N:12]=[CH:13][N:14]=2)[CH:17]=[N:18]1)[CH2:25][CH3:26])[O:38][CH3:39]

Participants

5

Reactant 3

HCID 1049PyridineHCID 6586Methyl chloroformateHCID 574778993-[4-(7-[2-(Trimethylsilyl)ethoxy]methyl-7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1H-pyrazol-1-yl]pentan-1-ol

Product 1

HCID 57477900methyl 3-[4-(7-[2-(trimethylsilyl)ethoxy]methyl-7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1H-pyrazol-1-yl]pentyl carbonate

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

To a solution of [3-[4-(7-[2-(trimethylsilyl)ethoxy]methyl-7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1H-pyrazol-1-yl]pentan-1-ol (50 mg, 0.0001 mol) from Example 498 Step 2 in pyridine (1 mL, 0.01 mol), methyl chloroformate (30 μL, 0.0003 mol) was added. The reaction was stirred for 3 h, water was added and the product was extracted with ethyl acetate. The combined organic layers were washed 1N HCl, brine, dried over magnesium sulfate, filtered and concentrated to give methyl 3-[4-(7-[2-(trimethylsilyl)ethoxy]methyl-7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1H-pyrazol-1-yl]pentyl carbonate as a semisolid residue (30 mg, 50%). LC/MS (M+H)+: m/z=460.

Workup

  1. extractionthe product was extracted with ethyl acetate
  2. washThe combined organic layers were washed 1N HCl, brine
  3. dry with materialdried over magnesium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated

Sources & evidence

ORD record
ord-880d584cea574de1a4140dcad1df56ce
Source dataset
uspto-grants-2015_02
Patent number
US08946245B2

Reaction notes

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