1-Aminoimidazolidin-2-one → 1-[(E)-1-[3-[difluoro(quinolin-6-yl)methyl]-[1,2,4]triazolo[4,3-b]pyridazin-6-yl]ethylideneamino]imidazolidin-2-one

HRID 456100

Reaction equation

HRID 456100 reaction equation
[F:1][C:2]([F:25])([C:15]1[CH:16]=[C:17]2[C:22](=[CH:23][CH:24]=1)[N:21]=[CH:20][CH:19]=[CH:18]2)[C:3]1[N:7]2[N:8]=[C:9]([C:12](=O)[CH3:13])[CH:10]=[CH:11][C:6]2=[N:5][N:4]=1.[NH2:26][N:27]1[CH2:31][CH2:30][NH:29][C:28]1=[O:32]>CO>[F:1][C:2]([F:25])([C:15]1[CH:16]=[C:17]2[C:22](=[CH:23][CH:24]=1)[N:21]=[CH:20][CH:19]=[CH:18]2)[C:3]1[N:7]2[N:8]=[C:9](/[C:12](=[N:26]/[N:27]3[CH2:31][CH2:30][NH:29][C:28]3=[O:32])/[CH3:13])[CH:10]=[CH:11][C:6]2=[N:5][N:4]=1

Participants

4

Reactant 2

HCID 1816971-Aminoimidazolidin-2-oneHCID 581904681-(3-(Difluoro(quinolin-6-yl)methyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)ethanone

Product 1

HCID 716998971-[(E)-1-[3-[difluoro(quinolin-6-yl)methyl]-[1,2,4]triazolo[4,3-b]pyridazin-6-yl]ethylideneamino]imidazolidin-2-oneYield 32.1%

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

A solution of 1-(3-(difluoro(quinolin-6-yl)methyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)ethanone (20 mg, 0.059 mmol) and 1-aminoimidazolidin-2-one (12 mg, 0.12 mmol) in MeOH was stirred at room temperature for overnight. Solvent was evaporated and the crude product was purified on flash chromatography (CH2Cl2:MeOH 9:1) to give the title compound as a white solid (8 mg, 32%). 1H-NMR (400 MHz, MeOH-d4) δ ppm 8.98 (s, 1H), 8.52 (d, 1H), 8.43 (s, 1H), 8.26 (d, 2H), 8.19 (m, 1H), 8.06 (d, 1H), 7.66 (d, 1H), 3.55 (t, 2H), 3.38 (t, 2H), 2.30 (s, 3H). LCMS (method A): [MH]+=423.0, tR=4.63 min.

Workup

  1. customSolvent was evaporated
  2. customthe crude product was purified on flash chromatography (CH2Cl2:MeOH 9:1)

Sources & evidence

ORD record
ord-ae0837598c084d929a9da333043bc6bb
Source dataset
uspto-grants-2013_07
Patent number
US08497368B2

Linked notes

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