Cesium fluoride → (S)-4-Amino-6-((1-(5-methyl-4-oxo-3-phenyl-3,4-dihydropyrrolo[2,1-f][1,2,4]triazin-2-yl)ethyl)amino)pyrimidine-5-carboxylic acid

HRID 1052464Notes

Reaction equation

HRID 1052464 reaction equation
[NH2:1][C@H:2]([C:4]1[N:9]([C:10]2[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=2)[C:8](=[O:16])[C:7]2=[C:17]([CH3:20])[CH:18]=[CH:19][N:6]2[N:5]=1)[CH3:3].[NH2:21][C:22]1[C:27]([C:28]([OH:30])=[O:29])=[C:26](Cl)[N:25]=[CH:24][N:23]=1.CCN(C(C)C)C(C)C.[F-].[Cs+]>C(O)C>[NH2:21][C:22]1[C:27]([C:28]([OH:30])=[O:29])=[C:26]([NH:1][C@H:2]([C:4]2[N:9]([C:10]3[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=3)[C:8](=[O:16])[C:7]3=[C:17]([CH3:20])[CH:18]=[CH:19][N:6]3[N:5]=2)[CH3:3])[N:25]=[CH:24][N:23]=1

Participants

6

Reactant 4

HCID 25953Cesium fluorideHCID 81531DiisopropylethylamineHCID 84013798HCID 84013798, compoundHCID 90102580(S)-2-(1-Aminoethyl)-5-methyl-3-phenylpyrrolo[2,1-f][1,2,4]triazin-4(3H)-one

Product 1

HCID 118433922(S)-4-Amino-6-((1-(5-methyl-4-oxo-3-phenyl-3,4-dihydropyrrolo[2,1-f][1,2,4]triazin-2-yl)ethyl)amino)pyrimidine-5-carboxylic acidYield 29.7%

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

(S)-2-(1-Aminoethyl)-5-methyl-3-phenylpyrrolo[2,1-f][1,2,4]triazin-4(3H)-one (270 mg, 0.89 mmol), 4-amino-6-chloropyrimidine-5-carboxylic acid (190 mg, 0.88 mmol, prepared according to Lan, Ruoxi et al from PCT Int. Appl. (2013), WO 2013040059 A1 20130321), DIEA (1.54 ml, 8.84 mmol) and cesium fluoride (403 mg, 2.65 mmol) were suspended in ethanol (10 ml) and the mixture was heated to reflux for 72 h. The solvent was evaporated under reduced pressure and the residue was purified by flash chromatography using SP1® Purification System (0% to 70%, ethyl acetate-methanol) to obtain 106 mg (27% yield) of the title compound. Purity: 90%.

Workup

  1. temperaturethe mixture was heated
  2. temperatureto reflux for 72 h
  3. customThe solvent was evaporated under reduced pressure
  4. customthe residue was purified by flash chromatography
  5. customSP1® Purification System (0% to 70%, ethyl acetate-methanol)

Sources & evidence

ORD record
ord-e01b2fd80e654382bdea5dc159210d9e
Source dataset
uspto-grants-2016_07
Patent number
US09388189B2

Reaction notes

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