Ethyl Acetate → (R)-ethyl 4-((5-fluoro-2-(5-fluoro-1-tosyl-1H-pyrrolo[2,3-b]pyridin-3-yl)pyrimidin-4-yl)amino)-5,5-dimethylhexanoate

HRID 2171847Notes

Reaction equation

HRID 2171847 reaction equation
[F:1][C:2]1[C:3]([NH:28][C@@H:29]([C:37]([CH3:40])([CH3:39])[CH3:38])/[CH:30]=[CH:31]/[C:32]([O:34][CH2:35][CH3:36])=[O:33])=[N:4][C:5]([C:8]2[C:16]3[C:11](=[N:12][CH:13]=[C:14]([F:17])[CH:15]=3)[N:10]([S:18]([C:21]3[CH:27]=[CH:26][C:24]([CH3:25])=[CH:23][CH:22]=3)(=[O:20])=[O:19])[CH:9]=2)=[N:6][CH:7]=1.CCOC(C)=O.[H][H]>CO.[Pd]>[F:1][C:2]1[C:3]([NH:28][C@@H:29]([C:37]([CH3:38])([CH3:40])[CH3:39])[CH2:30][CH2:31][C:32]([O:34][CH2:35][CH3:36])=[O:33])=[N:4][C:5]([C:8]2[C:16]3[C:11](=[N:12][CH:13]=[C:14]([F:17])[CH:15]=3)[N:10]([S:18]([C:21]3[CH:22]=[CH:23][C:24]([CH3:25])=[CH:26][CH:27]=3)(=[O:20])=[O:19])[CH:9]=2)=[N:6][CH:7]=1

Participants

6

Procedure

To a nitrogen purged flask charged with 10% Pd/C (0.033 g, 0.310 mmol) was added enough methanol to cover the catalyst. To this mixture was added a solution of (R,E)-ethyl 4-((5-fluoro-2-(5-fluoro-1-tosyl-1H-pyrrolo[2,3-b]pyridin-3-yl)pyrimidin-4-yl)amino)-5,5-dimethylhex-2-enoate, 38a, (0.330 g, 0.579 mmol) in MeOH. Note, a small amount of EtOAc was added to fully solubilize the starting material. The reaction mixture was then stirred under 1 atmosphere of hydrogen for 3 hours. LCMS shows presence of significant amounts of starting material. The contents of the reaction mixture were transferred to a pressure vessel containing a fresh source of palladium (0.033 g, 0.310 mmol). The reaction mixture was stirred in a Parr hydrogenation flask under 46 psi of hydrogen overnight. The mixture was diluted with methanol and filtered through celite. The filtrate was concentrated in vacuo to afford 331 mg of the desired product that was used without further purification: LCMS Gradient 10-90%, 0.1% formic acid, 5 minutes, C18/ACN, RT=3.75 minutes (M+H) 572.35.

Workup

  1. customThe contents of the reaction mixture were transferred to a pressure vessel
  2. filtrationfiltered through celite
  3. concentrationThe filtrate was concentrated in vacuo

Sources & evidence

ORD record
ord-e1fb61f82e1746c0b9c1f117a408e66f
Source dataset
uspto-grants-2015_06
Patent number
US09051319B2

Reaction notes

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