Cesium carbonate → (+/-)-2-((2-chloro-5-cyano-3-((4aR,8aR)-2-oxohexahydro-1H-pyrido[3,4-b][1,4]oxazin-6(7H)-yl)phenyl)amino)-4-(ethyl (4 methoxybenzyl)amino)imidazo[2,1-f][1,2,4]triazine-7-carbonitrile

HRID 921729Notes

Reaction equation

HRID 921729 reaction equation
Cl[C:2]1[N:7]=[C:6]([N:8]([CH2:18][CH3:19])[CH2:9][C:10]2[CH:15]=[CH:14][C:13]([O:16][CH3:17])=[CH:12][CH:11]=2)[C:5]2=[N:20][CH:21]=[C:22]([C:23]#[N:24])[N:4]2[N:3]=1.[NH2:25][C:26]1[CH:27]=[C:28]([CH:31]=[C:32]([N:35]2[CH2:44][CH2:43][C@@H:42]3[C@H:37]([O:38][CH2:39][C:40](=[O:45])[NH:41]3)[CH2:36]2)[C:33]=1[Cl:34])[C:29]#[N:30].C([O-])([O-])=O.[Cs+].[Cs+].CC1(C)C2C(=C(P(C3C=CC=CC=3)C3C=CC=CC=3)C=CC=2)OC2C(P(C3C=CC=CC=3)C3C=CC=CC=3)=CC=CC1=2>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].C([O-])(=O)C.[Pd+].O1CCOCC1>[Cl:34][C:33]1[C:32]([N:35]2[CH2:44][CH2:43][C@@H:42]3[C@H:37]([O:38][CH2:39][C:40](=[O:45])[NH:41]3)[CH2:36]2)=[CH:31][C:28]([C:29]#[N:30])=[CH:27][C:26]=1[NH:25][C:2]1[N:7]=[C:6]([N:8]([CH2:18][CH3:19])[CH2:9][C:10]2[CH:15]=[CH:14][C:13]([O:16][CH3:17])=[CH:12][CH:11]=2)[C:5]2=[N:20][CH:21]=[C:22]([C:23]#[N:24])[N:4]2[N:3]=1

Participants

8

Reactant 4

HCID 10796Cesium carbonateHCID 6360441,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine)HCID 867084732-Chloro-4-(ethyl(4-methoxybenzyl)amino)imidazo[2,1-f][1,2,4]triazine-7-carbonitrile2×HCID 86708613(+/-)-3-amino-4-chloro-5-((4aR,8aR)-2-oxohexahydro-1H-pyrido[3,4-b][1,4]oxazin-6(7H)-yl)benzonitrile

Product 1

HCID 86708612(+/-)-2-((2-chloro-5-cyano-3-((4aR,8aR)-2-oxohexahydro-1H-pyrido[3,4-b][1,4]oxazin-6(7H)-yl)phenyl)amino)-4-(ethyl (4 methoxybenzyl)amino)imidazo[2,1-f][1,2,4]triazine-7-carbonitrile

Reagents, catalysts & solvents 3

HCID 635956Ferrocene-1,1'-bis-(diphenylphosphine)CatalystHCID 178476740HCID 178476740, compoundCatalystHCID 312751,4-DioxaneSolvent

Conditions

Temperature
100 °C

Procedure

2-chloro-4-(ethyl(4-methoxybenzyl)amino)imidazo[2,1-f][1,2,4]triazine-7-carbonitrile (33.5 mg, 0.098 mmol), (Intermediate 10), (+/−)-3-amino-4-chloro-5-((4aR,8aR)-2-oxohexahydro-1H-pyrido[3,4-b][1,4]oxazin-6(7H)-yl)benzonitrile (30 mg, 0.098 mmol), DPPF (3.8 mg, 6.85 mol), Cs2CO3 (65.4 mg, 0.201 mmol), Xantphos (5.66 mg, 9.78 μmol), palladium(I)Acetate (6.83 mg, 0.029 mmol) and 1,4-dioxane (2 ml) were combined in a microwave vial. The vial was evacuated and backfilled with Nitrogen 3×. The reaction stirred at 100° C. for 3 hr. The reaction mixture cooled to 25° C., diluted with EtOAc and washed with brine and dried (Na2SO4). The solvents were removed and the material purified on silica gel 5% MeOH in DCM to afford (+/−)-2-((2-chloro-5-cyano-3-((4aR,8aR)-2-oxohexahydro-1H-pyrido[3,4-b][1,4]oxazin-6(7H)-yl)phenyl)amino)-4-(ethyl(4 methoxybenzyl)amino)imidazo[2,1-f][1,2,4]triazine-7-carbonitrile.

Workup

  1. customThe vial was evacuated
  2. temperatureThe reaction mixture cooled to 25° C.
  3. additiondiluted with EtOAc
  4. washwashed with brine
  5. dry with materialdried (Na2SO4)
  6. customThe solvents were removed
  7. customthe material purified on silica gel 5% MeOH in DCM

Sources & evidence

ORD record
ord-e5d7d533e84c4d12b792ba7953979063
Source dataset
uspto-grants-2016_03
Patent number
US09273057B2

Reaction notes

Loading…