Dimethylformamide → 4-(1-Methyl-5-(5-(4-(oxetan-3-yl)piperazin-1-yl)pyridin-2-ylamino)-6-oxo-1,6-dihydropyridin-3-yl)-2-(4-oxo-7,8,9,10-tetrahydropyridazino[4,5-a]indolizin-3(4H)-yl)nicotinaldehyde

HRID 1021907Notes

Reaction equation

HRID 1021907 reaction equation
Cl[C:2]1[C:7]([CH:8]=[O:9])=[C:6]([N:10]2[C:22](=[O:23])[C:14]3=[CH:15][N:16]4[C:21]([CH2:20][CH2:19][CH2:18][CH2:17]4)=[C:13]3[CH:12]=[N:11]2)[N:5]=[CH:4][CH:3]=1.C([CH:26]1[CH2:31][N:30]([CH:32]2[CH2:35][O:34][CH2:33]2)[CH2:29][CH2:28][N:27]1[C:36]1[CH:37]=[CH:38][C:39]([NH:42][C:43]2[C:44](=[O:59])[N:45]([CH3:58])[CH:46]=[C:47](B3OC(C)(C)C(C)(C)O3)[CH:48]=2)=[N:40][CH:41]=1)C.C([O-])([O-])=O.[Na+].[Na+].CN(C=O)C>O>[CH3:58][N:45]1[C:44](=[O:59])[C:43]([NH:42][C:39]2[CH:38]=[CH:37][C:36]([N:27]3[CH2:28][CH2:29][N:30]([CH:32]4[CH2:33][O:34][CH2:35]4)[CH2:31][CH2:26]3)=[CH:41][N:40]=2)=[CH:48][C:47]([C:2]2[C:7]([CH:8]=[O:9])=[C:6]([N:10]3[C:22](=[O:23])[C:14]4=[CH:15][N:16]5[C:21]([CH2:20][CH2:19][CH2:18][CH2:17]5)=[C:13]4[CH:12]=[N:11]3)[N:5]=[CH:4][CH:3]=2)=[CH:46]1

Participants

6

Reactant 4

HCID 6228DimethylformamideHCID 10340Sodium CarbonateHCID 866843003-(5-(2-ethyl-4-(oxetan-3-yl)piperazin-1-yl)pyridine-2-ylamino)-1-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2(1H)-oneHCID 866843524-Chloro-2-(4-oxo-7,8,9,10-tetrahydropyridazino[4,5-a]indolizin-3(4H)-yl)nicotinaldehyde

Product 1

HCID 866843674-(1-Methyl-5-(5-(4-(oxetan-3-yl)piperazin-1-yl)pyridin-2-ylamino)-6-oxo-1,6-dihydropyridin-3-yl)-2-(4-oxo-7,8,9,10-tetrahydropyridazino[4,5-a]indolizin-3(4H)-yl)nicotinaldehydeYield 40.8%

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Conditions

Temperature
50 °C

Procedure

A 50-mL round bottomed flask equipped with a reflux condenser was charged with 4-chloro-2-(4-oxo-7,8,9,10-tetrahydropyridazino[4,5-a]indolizin-3(4H)-yl)nicotinaldehyde 192c (118 mg, 0.36 mmol), 1-methyl-3-(5-(4-(oxetan-3-yl)piperazin-1-yl)pyridin-2-yl-amino)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2(1H)-one 101l (171 mg, 0.36 mmol), Na2CO3 (78 mg, 0.72 mmol), Pd (dppf)Cl2 (30 mg, 0.036 mmol), DMF (10 mL), and water (1 mL). After bubbling nitrogen through the mixture for 30 minutes, it was heated at 50° C. for 10 hours under N2 protection. It was then cooled to room temperature and evaporated under reduced pressure. The residue was purified by silica-gel column chromatography eluting with 20:1 dichloromethane/methanol to afford 198a (93 mg, 40%) as a brown solid. MS-ESI: [M+H]+ 634.3.

Workup

  1. customA 50-mL round bottomed flask equipped with a reflux condenser
  2. customAfter bubbling nitrogen through the mixture for 30 minutes
  3. temperatureIt was then cooled to room temperature
  4. customevaporated under reduced pressure
  5. customThe residue was purified by silica-gel column chromatography
  6. washeluting with 20:1 dichloromethane/methanol

Sources & evidence

ORD record
ord-d58c62e539ca493d84984cb808fa4e3c
Source dataset
uspto-grants-2014_05
Patent number
US08716274B2

Reaction notes

Loading…