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Lithium Hydroxide → (R)-tert-butyl 1-(5-chloro-3-propionamido-1H-pyrrolo[2,3-b]pyridin-4-yl)piperidin-3-ylcarbamate

HRID 1034864
Notes
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Reaction equation

HRID 1034864 reaction equation
[NH2:1][C:2]1[C:10]2[C:5](=[N:6][CH:7]=[C:8]([Cl:25])[C:9]=2[N:11]2[CH2:16][CH2:15][CH2:14][C@@H:13]([NH:17][C:18](=[O:24])[O:19][C:20]([CH3:23])([CH3:22])[CH3:21])[CH2:12]2)[NH:4][CH:3]=1.[C:26](Cl)(=[O:29])[CH2:27][CH3:28].[Li+].[OH-]>CN1C(=O)CCC1.C(Cl)Cl.O.N1C=CC=CC=1>[Cl:25][C:8]1[C:9]([N:11]2[CH2:16][CH2:15][CH2:14][C@@H:13]([NH:17][C:18](=[O:24])[O:19][C:20]([CH3:21])([CH3:22])[CH3:23])[CH2:12]2)=[C:10]2[C:2]([NH:1][C:26](=[O:29])[CH2:27][CH3:28])=[CH:3][NH:4][C:5]2=[N:6][CH:7]=1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

8

Reactant 3

HCID 3939Lithium HydroxideHCID 62324Propionyl chlorideHCID 67045610(R)-tert-butyl 1-(3-amino-5-chloro-1H-pyrrolo[2,3-b]pyridin-4-yl)piperidin-3-ylcarbamate

Product 1

HCID 67045346(R)-tert-butyl 1-(5-chloro-3-propionamido-1H-pyrrolo[2,3-b]pyridin-4-yl)piperidin-3-ylcarbamateYield 63.6%

Reagents, catalysts & solvents 4

HCID 962
Water
Solvent
HCID 1049PyridineSolvent
HCID 6344DichloromethaneSolvent2×
HCID 13387N-methyl-2-pyrrolidoneSolvent

Procedure

DCM (2 mL) and pyridine (1 mL) were added to (R)-tert-butyl 1-(3-amino-5-chloro-1H-pyrrolo[2,3-b]pyridin-4-yl)piperidin-3-ylcarbamate (0.3 g, 0.820 mmol; Example 91, Step A) in NMP (2 mL), and then propionyl chloride (0.228 g, 2.46 mmol) was added. The reaction was then stirred for 1 hour at room temperature, and then 3M aqueous LiOH (3 mL) was added. The reaction was stirred for 10 minutes. Water (10 mL) and DCM (10 mL) were then added, and the organic fraction was dried, filtered and concentrated. Purification of the crude product by reverse phase HPLC (5-95% ACN in water) gave the product (R)-tert-butyl 1-(5-chloro-3-propionamido-1H-pyrrolo[2,3-b]pyridin-4-yl)piperidin-3-ylcarbamate (0.220 g, 63.6% yield).

Workup

  1. stirringThe reaction was stirred for 10 minutes
  2. customthe organic fraction was dried
  3. filtrationfiltered
  4. concentrationconcentrated
  5. customPurification of the crude product by reverse phase HPLC (5-95% ACN in water)

Sources & evidence

ORD record
ord-87dd4493761a45e5ba17d0aa4030a9b9
Source dataset
uspto-grants-2013_10
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08545897B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes