N,N'-Dimethylethylenediamine → 3-(2-amino-7,8-dihydropyrido[4,3-d]pyrimidin-6(5H)-yl)-1-(4-(tert-butyl)phenyl)pyridin-2(1H)-one

HRID 632827

Reaction equation

HRID 632827 reaction equation
[NH2:1][C:2]1[N:3]=[CH:4][C:5]2[CH2:11][N:10]([C:12]3[C:13](=[O:18])[NH:14][CH:15]=[CH:16][CH:17]=3)[CH2:9][CH2:8][C:6]=2[N:7]=1.[C:19]([C:23]1[CH:28]=[CH:27][C:26](I)=[CH:25][CH:24]=1)([CH3:22])([CH3:21])[CH3:20].CNCCNC.[O-]P([O-])([O-])=O.[K+].[K+].[K+]>CN1C(=O)CCC1.[Cu]I>[NH2:1][C:2]1[N:3]=[CH:4][C:5]2[CH2:11][N:10]([C:12]3[C:13](=[O:18])[N:14]([C:26]4[CH:27]=[CH:28][C:23]([C:19]([CH3:22])([CH3:21])[CH3:20])=[CH:24][CH:25]=4)[CH:15]=[CH:16][CH:17]=3)[CH2:9][CH2:8][C:6]=2[N:7]=1

Participants

7

Reactant 4

HCID 8070N,N'-DimethylethylenediamineHCID 62657Potassium Phosphate, TribasicHCID 1420291-tert-Butyl-4-iodobenzeneHCID 1212496083-(2-amino-7,8-dihydropyrido[4,3-d]pyrimidin-6(5H)-yl)pyridin-2(1H)-one

Product 1

HCID 1212495773-(2-amino-7,8-dihydropyrido[4,3-d]pyrimidin-6(5H)-yl)-1-(4-(tert-butyl)phenyl)pyridin-2(1H)-oneYield 61.3%

Reagents, catalysts & solvents 2

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)CatalystHCID 13387N-methyl-2-pyrrolidoneSolvent

Conditions

Temperature
80 °C

Procedure

A mixture of 3-(2-amino-7,8-dihydropyrido[4,3-d]pyrimidin-6(5H)-yl)pyridin-2(1H)-one (52 mg, 0.20 mmol), 1-tert-butyl-4-iodobenzene (0.071 mL, 0.40 mmol), N,N′-dimethylethylenediamine (0.022 mL, 0.20 mmol), potassium phosphate tribasic (170 mg, 0.80 mmol), copper (I) iodide (15 mg, 0.080 mmol) in 1.0 mL NMP was heated at 80° C. for 6 hours. The reaction mixture was partitioned between EtOAc and aqueous NaHCO3 solution, the EtOAc layer washed with H2O, brine, dried with anhydrous Na2SO4 and rotary evaporated. The resulting oil was chromatographed eluting with CHCl3, then CHCl3/EtOAc (1:1), and then 5% MeOH in CHCl3/EtOAc (1:1). The solid obtained was then triturated with an EtOAc/hexane mixture to give a pale greenish-beige solid (46 mg, 61%). 1H NMR (DMSO) δ: 8.03 (s, 1H), 7.48-7.54 (m, 2H), 7.28-7.33 (m, 2H), 7.27 (dd, J=6.7, 1.8 Hz, 1H), 6.87 (dd, J=7.3, 1.8 Hz, 1H), 6.37 (s, 2H), 6.27 (t, J=7.0 Hz, 1H), 4.07 (s, 2H), 3.46 (t, J=6.0 Hz, 2H), 2.69 (t, J=5.9 Hz, 2H), 1.33 (s, 9H).

Workup

  1. customThe reaction mixture was partitioned between EtOAc and aqueous NaHCO3 solution
  2. washthe EtOAc layer washed with H2O, brine
  3. dry with materialdried with anhydrous Na2SO4 and rotary evaporated
  4. customThe resulting oil was chromatographed
  5. washeluting with CHCl3
  6. customThe solid obtained
  7. customwas then triturated with an EtOAc/hexane mixture

Sources & evidence

ORD record
ord-3565f280388d40a0a548975d180b27ca
Source dataset
uspto-grants-2016_04
Patent number
US09321766B1

Linked notes

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