Diisopropylethylamine → 6-(3-Methyl-5-pyridin-2-yl-3H-[1,2,3]triazol-4-ylmethoxy)-pyridazine-3-carboxylic acid (tetrahydro-pyran-4-yl)-amide

HRID 402406Notes

Reaction equation

HRID 402406 reaction equation
[CH3:1][N:2]1[C:6]([CH2:7][O:8][C:9]2[N:14]=[N:13][C:12]([C:15]([OH:17])=O)=[CH:11][CH:10]=2)=[C:5]([C:18]2[CH:23]=[CH:22][CH:21]=[CH:20][N:19]=2)[N:4]=[N:3]1.CN(C(ON1N=NC2C=CC=CC1=2)=[N+](C)C)C.[B-](F)(F)(F)F.CCN(C(C)C)C(C)C.[NH2:55][CH:56]1[CH2:61][CH2:60][O:59][CH2:58][CH2:57]1>CN(C=O)C>[O:59]1[CH2:60][CH2:61][CH:56]([NH:55][C:15]([C:12]2[N:13]=[N:14][C:9]([O:8][CH2:7][C:6]3[N:2]([CH3:1])[N:3]=[N:4][C:5]=3[C:18]3[CH:23]=[CH:22][CH:21]=[CH:20][N:19]=3)=[CH:10][CH:11]=2)=[O:17])[CH2:57][CH2:58]1

Participants

6

Reactant 4

HCID 81531DiisopropylethylamineHCID 4192234-AminotetrahydropyranHCID 2733207O-(Benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborateHCID 674986856-(3-Methyl-5-pyridin-2-yl-3H-[1,2,3]triazol-4-ylmethoxy)-pyridazine-3-carboxylic acid

Product 1

HCID 573350996-(3-Methyl-5-pyridin-2-yl-3H-[1,2,3]triazol-4-ylmethoxy)-pyridazine-3-carboxylic acid (tetrahydro-pyran-4-yl)-amideYield 82.4%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

To a solution of 6-(3-methyl-5-pyridin-2-yl-3H-[1,2,3]triazol-4-ylmethoxy)-pyridazine-3-carboxylic acid (98 mg, 0.31 mmol) and TBTU (111 mg, 0.35 mmol) in DMF (2 mL) was added DIPEA (270 μL, 1.57 mmol). Then 4-aminotetrahydropyran (35 mg, 0.35 mmol) was added and the mixture was stirred at room temperature under Ar for 16 h. The mixture was then evaporated and purification by chromatography (silica, 50 to 100% ethyl acetate in heptane) afforded the title compound (101 mg, 81%) as an off white solid. MS: m/e=396.2 [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-e205bbf7af204f58bb011587aae5cb50
Source dataset
uspto-grants-2014_06
Patent number
US08742097B2

Reaction notes

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