Cyclopentylamine → 2-Chloro-N-cyclopentyl-5-iodo-7-((2-(trimethylsilyl)ethoxy)methyl)-7H-pyrrolo[2,3-d]pyrimidin-4-amine

HRID 529640Notes

Reaction equation

HRID 529640 reaction equation
[Cl:1][C:2]1[N:3]=[C:4](Cl)[C:5]2[C:10]([I:11])=[CH:9][N:8]([CH2:12][O:13][CH2:14][CH2:15][Si:16]([CH3:19])([CH3:18])[CH3:17])[C:6]=2[N:7]=1.[CH:21]1([NH2:26])[CH2:25][CH2:24][CH2:23][CH2:22]1.CC(C)([O-])C.[Na+]>O1CCOCC1>[Cl:1][C:2]1[N:3]=[C:4]([NH:26][CH:21]2[CH2:25][CH2:24][CH2:23][CH2:22]2)[C:5]2[C:10]([I:11])=[CH:9][N:8]([CH2:12][O:13][CH2:14][CH2:15][Si:16]([CH3:19])([CH3:18])[CH3:17])[C:6]=2[N:7]=1

Participants

5

Reactant 3

HCID 2906CyclopentylamineHCID 23676156Sodium t-butoxideHCID 866796212,4-dichloro-5-iodo-7-((2-(trimethylsilyl)ethoxy)methyl)-7H-pyrrolo(2,3-d)pyrimidine

Product 1

HCID 867264162-Chloro-N-cyclopentyl-5-iodo-7-((2-(trimethylsilyl)ethoxy)methyl)-7H-pyrrolo[2,3-d]pyrimidin-4-amineYield 94%

Reagents, catalysts & solvents 1

HCID 312751,4-DioxaneSolvent

Conditions

Temperature
70 °C

Procedure

2,4-Dichloro-5-iodo-7-((2-(trimethylsilyl)ethoxy)methyl)-7H-pyrrolo[2,3-d]pyrimidine (1 equiv), cyclopentanamine (1 equiv), sodium tert-butoxide (7.5 equiv), and 1,4-dioxane (0.28 M) were combined in a sealable vessel with a stir bar. The resulting mixture was put under nitrogen atmosphere, sealed, stirred vigorously, and heated at 70° C. After cooling to room temperature, the reaction mixture was loaded directly onto a silica gel column and purified using flash chromatography (Biotage) (0-20% ethyl acetate in hexane) to give the title compound (94% yield) as a yellow solid. MS (ESI) m/z 493.2 [M+1]+.

Workup

  1. customsealed
  2. temperatureAfter cooling to room temperature
  3. custompurified

Sources & evidence

ORD record
ord-034f4fc780e843108606d17f4542df20
Source dataset
uspto-grants-2016_05
Patent number
US09346812B2

Reaction notes

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