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N,N-Dimethylglycine → 5-(2-benzyl-2H-indazol-6-yl)-7-{1-[(dimethylamino)acetyl]-1,2,3,6-tetrahydropyridin-4-yl}pyrrolo[2,1-f][1,2,4]triazin-4-amine

HRID 1972908
Notes
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Reaction equation

HRID 1972908 reaction equation
[CH2:1]([N:8]1[CH:16]=[C:15]2[C:10]([CH:11]=[C:12]([C:17]3[CH:18]=[C:19]([C:27]4[CH2:28][CH2:29][NH:30][CH2:31][CH:32]=4)[N:20]4[C:25]=3[C:24]([NH2:26])=[N:23][CH:22]=[N:21]4)[CH:13]=[CH:14]2)=[N:9]1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[CH3:33][N:34]([CH3:39])[CH2:35][C:36](O)=[O:37].CCN=C=NCCCN(C)C.Cl.C1C=CC2N(O)N=NC=2C=1.C(N(CC)C(C)C)(C)C>CN(C=O)C>[CH2:1]([N:8]1[CH:16]=[C:15]2[C:10]([CH:11]=[C:12]([C:17]3[CH:18]=[C:19]([C:27]4[CH2:28][CH2:29][N:30]([C:36](=[O:37])[CH2:35][N:34]([CH3:39])[CH3:33])[CH2:31][CH:32]=4)[N:20]4[C:25]=3[C:24]([NH2:26])=[N:23][CH:22]=[N:21]4)[CH:13]=[CH:14]2)=[N:9]1)[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

7

Reactant 5

HCID 673N,N-DimethylglycineHCID 757711-HydroxybenzotriazoleHCID 81531DiisopropylethylamineHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 585297595-(2-benzyl-2H-indazol-6-yl)-7-(1,2,3,6-tetrahydropyridin-4-yl)pyrrolo[2,1-f][1,2,4]triazin-4-amine

Product 1

HCID 58529475
5-(2-benzyl-2H-indazol-6-yl)-7-{1-[(dimethylamino)acetyl]-1,2,3,6-tetrahydropyridin-4-yl}pyrrolo[2,1-f][1,2,4]triazin-4-amine
Yield 20%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

A mixture of 5-(2-benzyl-2H-indazol-6-yl)-7-(1,2,3,6-tetrahydropyridin-4-yl)pyrrolo[2,1-f][1,2,4]triazin-4-amine (100 mg, 0.24 mmol), N,N-dimethylglycine (27 mg, 0.26 mmol), EDCl (50 mg, 0.26 mmol), HOBt (35 mg, 026 mmol), and N,N-diisopropylethylamine (124 μL, 0.71 mmol) in DMF (1.5 mL) was stirred at rt for 16 h. The crude mixture was purified by preparative HPLC using a gradient elution from 15% to 45% acetonitrile in water followed by filtration through an acidic resin, washing with MeOH. The product was eluted with 2M NH3 in MeOH and the filtrate was concentrated to provide 24 mg (20%) of the desired product. 1H NMR (400 MHz, DMSO-d6) δ 8.55 (s, 1 H), 7.96 (s, 1 H), 7.81 (d, 1 H), 7.61 (s, 1 H), 7.27-7.37 (m, 5 H), 7.14 (dd, 1 H), 7.03-7.10 (m, 1 H), 6.80-6.84 (m, 1 H), 5.65 (s, 2 H), 4.25 (d, 2 H), 3.69 (dt, 2 H), 3.13 (d, 2 H), 2.63-2.70 (m, 1 H), 2.53-2.60 (m, 1 H), 2.17 (m, 6 H); ES-MS m/z 507.17 [M+H]+, HPLC RT (min) 1.36.

Workup

  1. customThe crude mixture was purified by preparative HPLC
  2. washa gradient elution from 15% to 45% acetonitrile in water
  3. filtrationfollowed by filtration through an acidic resin
  4. washwashing with MeOH
  5. washThe product was eluted with 2M NH3 in MeOH
  6. concentrationthe filtrate was concentrated

Sources & evidence

ORD record
ord-feac02ce671d416ea5278e165b19a8d1
Source dataset
uspto-grants-2013_04
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08431695B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes