Potassium Phosphate, Tribasic → [4-(5-Bromo-1-methyl-6-oxo-1,6-dihydropyridin-3-yl)-2-{4,4-dimethyl-9-oxo-1,10-diazatricyclo[6.4.0.02,6]dodeca-2(6),7-dien-10-yl}pyridin-3-yl]methyl Acetate

HRID 593043Notes

Reaction equation

HRID 593043 reaction equation
[Br:1][C:2]1[C:3](=[O:10])[N:4]([CH3:9])[CH:5]=[C:6](I)[CH:7]=1.[C:11]([O:14][CH2:15][C:16]1[C:17]([N:25]2[CH2:36][CH2:35][N:34]3[C:27](=[CH:28][C:29]4[CH2:30][C:31]([CH3:38])([CH3:37])[CH2:32][C:33]=43)[C:26]2=[O:39])=[N:18][CH:19]=[CH:20][C:21]=1B(O)O)(=[O:13])[CH3:12].[O-]P([O-])([O-])=O.[K+].[K+].[K+].C([O-])(=O)C.[Na+]>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.Cl[Pd]Cl.[Fe+2].O.C(#N)C>[C:11]([O:14][CH2:15][C:16]1[C:17]([N:25]2[CH2:36][CH2:35][N:34]3[C:27](=[CH:28][C:29]4[CH2:30][C:31]([CH3:38])([CH3:37])[CH2:32][C:33]=43)[C:26]2=[O:39])=[N:18][CH:19]=[CH:20][C:21]=1[C:6]1[CH:7]=[C:2]([Br:1])[C:3](=[O:10])[N:4]([CH3:9])[CH:5]=1)(=[O:13])[CH3:12]

Participants

8

Reactant 4

HCID 62657Potassium Phosphate, TribasicHCID 517045Sodium AcetateHCID 866840253-Bromo-5-iodo-1-methyl-1,2-dihydropyridin-2-oneHCID 86684340[4-(Dihydroxyboranyl)-2-{4,4-dimethyl-9-oxo-1,10-diazatricyclo[6.4.0.02,6]dodeca-2(6),7-dien-10-yl}pyridin-3-yl]methyl acetate

Product 1

HCID 86684396[4-(5-Bromo-1-methyl-6-oxo-1,6-dihydropyridin-3-yl)-2-{4,4-dimethyl-9-oxo-1,10-diazatricyclo[6.4.0.02,6]dodeca-2(6),7-dien-10-yl}pyridin-3-yl]methyl AcetateYield 22%

Reagents, catalysts & solvents 3

HCID 178418228Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)CatalystHCID 962WaterSolventHCID 6342AcetonitrileSolvent

Conditions

Temperature
30 °C

Procedure

A 100-mL single-neck round-bottomed flask equipped with a magnetic stirrer was charged with 3-bromo-5-iodo-1-methylpyridin-2(1H)-one 214b (1.57 g, 5.0 mmol), {3-[(acetyloxy)methyl]-2-{4,4-dimethyl-9-oxo-1,10-diazatricyclo[6.4.0.02,6]dodeca-2(6),7-dien-10-yl}pyridin-4-yl}boronic acid 199e (1.98 g, 5.0 mmol), PdCl2(dppf) (205 mg, 0.25 mmol), K3PO4 (2.12 g, 10.0 mmol), sodium acetate (820 mg, 10.0 mmol), acetonitrile (45 mL), and water (1 mL). The system was evacuated and refilled with N2. The reaction mixture was stirred at 30° C. for 3 h. It was then filtered and the filtrate was concentrated under reduced pressure. The resulting residue was purified by silica-gel column chromatography eluting with 30:1 dichloromethane/methanol to afford 273a (580 mg, 22%) as a white solid. MS-ESI: [M+H]+ 539.2. 1H NMR (500 MHz, CDCl3) δ 8.49 (d, J=5.0 Hz, 1H), 7.84 (d, J=2.5 Hz, 1H), 7.45 (d, J=2.0 Hz, 1H), 7.09 (d, J=5.0 Hz, 1H), 6.79 (s, 1H), 5.15 (s, 2H), 4.55-4.51 (m, 1H), 4.27-4.25 (m, 1H), 4.15-4.13 (m, 1H), 4.06-4.04 (m, 1H), 3.68 (s, 3H), 2.58-2.56 (m, 2H), 2.51 (s, 2H), 1.86 (s, 3H), 1.28 (s, 6H).

Workup

  1. customA 100-mL single-neck round-bottomed flask equipped with a magnetic stirrer
  2. customThe system was evacuated
  3. additionrefilled with N2
  4. filtrationIt was then filtered
  5. concentrationthe filtrate was concentrated under reduced pressure
  6. customThe resulting residue was purified by silica-gel column chromatography
  7. washeluting with 30:1 dichloromethane/methanol

Sources & evidence

ORD record
ord-f58c80ef0801489c9880dd5f5bf26f45
Source dataset
uspto-grants-2016_01
Patent number
US09238655B2

Reaction notes

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