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

HRID 1501462Notes

Reaction equation

HRID 1501462 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-a5b638afb7e74a5290553dd272f8119b
Source dataset
uspto-grants-2015_12
Patent number
US09206187B2

Reaction notes

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