Triethylamine → Tert-butyl 2-(3-((7-methoxyquinolin-4-yloxy)methyl)-[1,2,4]triazolo[4,3-a]pyridine-6-carboxamido)ethyl(methyl)carbamate

HRID 40271Notes

Reaction equation

HRID 40271 reaction equation
[CH3:1][O:2][C:3]1[CH:12]=[C:11]2[C:6]([C:7]([O:13][CH2:14][C:15]3[N:19]4[CH:20]=[C:21]([C:24](O)=[O:25])[CH:22]=[CH:23][C:18]4=[N:17][N:16]=3)=[CH:8][CH:9]=[N:10]2)=[CH:5][CH:4]=1.[C:27]([O:31][C:32](=[O:38])[N:33]([CH2:35][CH2:36][NH2:37])[CH3:34])([CH3:30])([CH3:29])[CH3:28].F[P-](F)(F)(F)(F)F.N1(OC(N(C)C)=[N+](C)C)C2N=CC=CC=2N=N1.C(N(CC)CC)C>CN(C=O)C>[CH3:1][O:2][C:3]1[CH:12]=[C:11]2[C:6]([C:7]([O:13][CH2:14][C:15]3[N:19]4[CH:20]=[C:21]([C:24]([NH:37][CH2:36][CH2:35][N:33]([CH3:34])[C:32](=[O:38])[O:31][C:27]([CH3:28])([CH3:29])[CH3:30])=[O:25])[CH:22]=[CH:23][C:18]4=[N:17][N:16]=3)=[CH:8][CH:9]=[N:10]2)=[CH:5][CH:4]=1

Participants

6

Reactant 4

HCID 8471TriethylamineHCID 2756424N-Boc-N-methylethylenediamineHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 576912183-((7-Methoxyquinolin-4-yloxy)methyl)-[1,2,4]triazolo[4,3-a]pyridine-6-carboxylic acid

Product 1

HCID 57691109Tert-butyl 2-(3-((7-methoxyquinolin-4-yloxy)methyl)-[1,2,4]triazolo[4,3-a]pyridine-6-carboxamido)ethyl(methyl)carbamateYield 93%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

3-((7-Methoxyquinolin-4-yloxy)methyl)-[1,2,4]triazolo[4,3-a]pyridine-6-carboxylic acid (0.072 g, 0.21 mmol) was dissolved in DMF (1.5 mL) then added N-(2-aminoethyl)-N-methyl carbamic acid tert-butyl ester (0.054 ml, 0.31 mmol), 2-(7-aza-1H-benzotriazole-1-yl)-1,1,3,3-tetramethyluronium hexafluorophosphate (0.12 g, 0.31 mmol) and triethylamine (0.043 ml, 0.31 mmol). The reaction mixture was stirred at room temperature overnight then concentrated under vacuum. The sample was purified by flash chromatography eluting with 6% 7N ammonia in methanol/dichloromethane to afford tert-butyl 2-(3-((7-methoxyquinolin-4-yloxy)methyl)-[1,2,4]triazolo[4,3-a]pyridine-6-carboxamido)ethyl(methyl)carbamate (0.097 g, 93% yield) as a pale yellow solid. MS (ESI pos. ion) m/z: 507.3 (MH+).

Workup

  1. concentrationthen concentrated under vacuum
  2. customThe sample was purified by flash chromatography
  3. washeluting with 6% 7N ammonia in methanol/dichloromethane

Sources & evidence

ORD record
ord-96dae68fbf244ab5af0c3d7764f5b479
Source dataset
uspto-grants-2013_09
Patent number
US08524900B2

Reaction notes

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