1,4-Dioxane → 5-(5-chloro-2-fluoropyridin-4-yl)-3-((tetrahydro-2H-pyran-4-yl)methyl)aminopyrazine-2-carboxamide

HRID 1623336Notes

Reaction equation

Cl[C:2]1[C:3]([NH:16][CH2:17][CH:18]2[CH2:23][CH2:22][O:21][CH2:20][CH2:19]2)=[N:4][C:5]([C:8]2[C:13]([Cl:14])=[CH:12][N:11]=[C:10]([F:15])[CH:9]=2)=[CH:6][N:7]=1.[C:24]([Cu])#[N:25].[O:27]1CCOCC1>C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.[Fe+2].C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd]>[Cl:14][C:13]1[C:8]([C:5]2[N:4]=[C:3]([NH:16][CH2:17][CH:18]3[CH2:23][CH2:22][O:21][CH2:20][CH2:19]3)[C:2]([C:24]([NH2:25])=[O:27])=[N:7][CH:6]=2)=[CH:9][C:10]([F:15])=[N:11][CH:12]=1

Participants

Conditions

Temperature: 100 °C

Procedure

3-chloro-6-(5-chloro-2-fluoropyridin-4-yl)-N-((tetrahydro-2H-pyran-4-yl)methyl)pyrazin-2-amine (0.0342 g, 0.096 mmol), CuCN (0.034 g, 0.383 mmol), and dppf (0.085 g, 0.153 mmol) were dissolved in dioxane (1.5 ml). The solution was then degassed by sparging with argon for 5 min. It was then treated with Pd2(dba)3 (0.035 g, 0.038 mmol). The reaction mixture was then heated at 100° C. for 5 hr. The reaction mixture was filtered through a pad of Celite then it was concentrated in vacuo to give 0.110 g of 5-(5-chloro-2-fluoropyridin-4-yl)-3-((tetrahydro-2H-pyran-4-yl)methyl)aminopyrazine-2-carboxamide. LCMS (m/z): 366 (MH+), retention time=0.89 min.

Workup

customThe solution was then degassed
customby sparging with argon for 5 min
filtrationThe reaction mixture was filtered through a pad of Celite
concentrationit was concentrated in vacuo

Sources & evidence

ORD record: ord-437fd7c51c664002851a9771d2cfcb75
Source dataset: uspto-grants-2014_07
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08778951B2

Reaction notes

Loading…