2-Amino-2-methyl-1-propanol → 6-[5-(5-Fluoro-pyridin-2-yl)-3-methyl-3H-[1,2,3]triazol-4-ylmethoxy]-pyridazine-3-carboxylic acid (2-hydroxy-1,1-dimethyl-ethyl)-amide

HRID 402409Notes

Reaction equation

HRID 402409 reaction equation
[F:1][C:2]1[CH:3]=[CH:4][C:5]([C:8]2[N:12]=[N:11][N:10]([CH3:13])[C:9]=2[CH2:14][O:15][C:16]2[N:21]=[N:20][C:19]([C:22]([OH:24])=O)=[CH:18][CH:17]=2)=[N:6][CH:7]=1.CN(C(ON1N=NC2C=CC=CC1=2)=[N+](C)C)C.[B-](F)(F)(F)F.CCN(C(C)C)C(C)C.[NH2:56][C:57]([CH3:61])([CH3:60])[CH2:58][OH:59]>CN(C=O)C>[OH:59][CH2:58][C:57]([NH:56][C:22]([C:19]1[N:20]=[N:21][C:16]([O:15][CH2:14][C:9]2[N:10]([CH3:13])[N:11]=[N:12][C:8]=2[C:5]2[CH:4]=[CH:3][C:2]([F:1])=[CH:7][N:6]=2)=[CH:17][CH:18]=1)=[O:24])([CH3:61])[CH3:60]

Participants

6

Reactant 4

HCID 118072-Amino-2-methyl-1-propanolHCID 81531DiisopropylethylamineHCID 2733207O-(Benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborateHCID 674980616-[5-(5-Fluoro-pyridin-2-yl)-3-methyl-3H-[1,2,3]triazol-4-ylmethoxy]-pyridazine-3-carboxylic acid

Product 1

HCID 573352556-[5-(5-Fluoro-pyridin-2-yl)-3-methyl-3H-[1,2,3]triazol-4-ylmethoxy]-pyridazine-3-carboxylic acid (2-hydroxy-1,1-dimethyl-ethyl)-amideYield 93%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

To a solution of 6-[5-(5-fluoro-pyridin-2-yl)-3-methyl-3H-[1,2,3]triazol-4-ylmethoxy]-pyridazine-3-carboxylic acid (50 mg, 0.15 mmol) and TBTU (54 mg, 0.17 mmol) in DMF (2 mL) was added DIPEA (130 μL, 0.76 mmol). Then 2-amino-2-methyl-1-propanol (16 μL, 0.167 mmol) was added and the mixture was stirred at room temperature under Ar for 1 h. The mixture was then evaporated and purification by chromatography (silica, 50 to 100% ethyl acetate in heptane) afforded the title compound (56 mg, 92%) as a white foam. MS: m/e=402.4 [M+H]+.

Workup

  1. customThe mixture was then evaporated
  2. custompurification by chromatography (silica, 50 to 100% ethyl acetate in heptane)

Sources & evidence

ORD record
ord-5ace7ee249ae4a4187a32fdf680abe9c
Source dataset
uspto-grants-2014_06
Patent number
US08742097B2

Reaction notes

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