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Formaldehyde → 3-cyclopropyl-3-(4-(7-(7-methyl-5,6,7,8-tetrahydroimidazo[1,2-a]pyrazin-3-yl)imidazo[1,2-c]pyrimidin-5-yl)-1H-pyrazol-1-yl)propanenitrile

HRID 1853008
Notes
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Reaction equation

HRID 1853008 reaction equation
[CH:1]1([CH:4]([N:8]2[CH:12]=[C:11]([C:13]3[N:18]4[CH:19]=[CH:20][N:21]=[C:17]4[CH:16]=[C:15]([C:22]4[N:26]5[CH2:27][CH2:28][NH:29][CH2:30][C:25]5=[N:24][CH:23]=4)[N:14]=3)[CH:10]=[N:9]2)[CH2:5][C:6]#[N:7])[CH2:3][CH2:2]1.C=O.[C:33](O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+]>C(Cl)Cl.CO>[CH:1]1([CH:4]([N:8]2[CH:12]=[C:11]([C:13]3[N:18]4[CH:19]=[CH:20][N:21]=[C:17]4[CH:16]=[C:15]([C:22]4[N:26]5[CH2:27][CH2:28][N:29]([CH3:33])[CH2:30][C:25]5=[N:24][CH:23]=4)[N:14]=3)[CH:10]=[N:9]2)[CH2:5][C:6]#[N:7])[CH2:3][CH2:2]1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 3

HCID 712FormaldehydeHCID 5049666Sodium triacetoxyborohydrideHCID 674584083-Cyclopropyl-3-(4-(7-(5,6,7,8-tetrahydroimidazo[1,2-a]pyrazin-3-yl)imidazo[1,2-c]pyrimidin-5-yl)-1H-pyrazol-1-yl)propanenitrile

Product 1

HCID 534974793-cyclopropyl-3-(4-(7-(7-methyl-5,6,7,8-tetrahydroimidazo[1,2-a]pyrazin-3-yl)imidazo[1,2-c]pyrimidin-5-yl)-1H-pyrazol-1-yl)propanenitrileYield 48.4%

Reagents, catalysts & solvents

1
HCID 21226129Dichloromethane methanolSolvent

Procedure

To 3-cyclopropyl-3-(4-(7-(5,6,7,8-tetrahydroimidazo[1,2-a]pyrazin-3-yl)imidazo[1,2-c]pyrimidin-5-yl)-1H-pyrazol-1-yl)propanenitrile (Example 56; 10 mg, 0.025 mmol) in DCM/MeOH (1 mL/1 mL) was added formaldehyde (50 mg, 0.50 mmol) and sodium triacetoxyborohydride (16 mg, 0.075 mmol). The reaction mixture was stirred at ambient temperature for 30 minutes and concentrated under reduced pressure. The residue was purified by silica gel chromatography (DCM/MeOH/NH4OH 10:1:0.1) to give the final product (5.0 mg, 48% yield). MS (apci) m/z=414.4 (M+H).

Workup

  1. concentrationconcentrated under reduced pressure
  2. customThe residue was purified by silica gel chromatography (DCM/MeOH/NH4OH 10:1:0.1)

Sources & evidence

ORD record
ord-5995ed2b322b40d7b80779820c786658
Source dataset
uspto-grants-2015_02
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08962596B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes