m-Toluidine → HCID 86695820, compound

HRID 1052004Notes

Reaction equation

HRID 1052004 reaction equation
[NH2:1][C:2]1[N:3]=[CH:4][C:5]2[CH2:11][N:10]([C:12]3[CH:20]=[CH:19][C:15]([C:16]([OH:18])=O)=[CH:14][CH:13]=3)[CH2:9][CH2:8][C:6]=2[N:7]=1.C(N(CC)C(C)C)(C)C.CN(C(ON1N=NC2C=CC=CC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.[NH2:54][C:55]1[CH:60]=[CH:59][CH:58]=[C:57]([CH3:61])[CH:56]=1>CN(C=O)C>[NH2:1][C:2]1[N:3]=[CH:4][C:5]2[CH2:11][N:10]([C:12]3[CH:20]=[CH:19][C:15]([C:16]([NH:54][C:55]4[CH:56]=[C:57]([CH3:61])[CH:58]=[CH:59][CH:60]=4)=[O:18])=[CH:14][CH:13]=3)[CH2:9][CH2:8][C:6]=2[N:7]=1

Participants

6

Reactant 4

HCID 7934m-ToluidineHCID 81531DiisopropylethylamineHCID 2733084Methanaminium, N-((1H-benzotriazol-1-yloxy)(dimethylamino)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 86695819HCID 86695819, compound

Product 1

HCID 86695820HCID 86695820, compoundYield 51%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

A mixture of 4-(2-amino-7,8-dihydropyrido[4,3-d]pyrimidin-6(5H)-yl)benzoic acid (27 mg, 0.10 mmol), N,N-diisopropylethylamine (0.087 mL, 0.50 mmol), and HBTU (42 mg, 0.11 mmol) in 1.0 mL DMF was stirred at room temperature for 10 minutes. Then meta-toluidine (0.022 mL, 0.20 mmol) was added and the reaction heated at 55° C. for 18 hours. The reaction mixture was partitioned between EtOAc and aqueous Na2CO3 solution, the EtOAc layer washed with H2O, brine, dried with anhydrous Na2SO4 and rotary evaporated. The resulting solid was triturated with an EtOAc/hexane mixture to give the title compound as a light beige solid (18 mg, 51%). 1H NMR (DMSO-d6) δ: 9.84 (s, 1H), 8.12 (s, 1H), 7.85-7.92 (m, 2H), 7.60 (s, 1H), 7.55 (d, J=8.2 Hz, 1H), 7.19 (t, J=7.8 Hz, 1H), 7.03-7.09 (m, 2H), 6.88 (d, J=7.6 Hz, 1H), 6.42 (s, 2H), 4.36 (s, 2H), 3.71 (t, J=6.0 Hz, 2H), 2.75 (t, J=5.9 Hz, 2H), 2.30 (s, 3H)

Workup

  1. temperaturethe reaction heated at 55° C. for 18 hours
  2. customThe reaction mixture was partitioned between EtOAc and aqueous Na2CO3 solution
  3. washthe EtOAc layer washed with H2O, brine
  4. dry with materialdried with anhydrous Na2SO4 and rotary evaporated
  5. customThe resulting solid was triturated with an EtOAc/hexane mixture

Sources & evidence

ORD record
ord-a97064af11e249668ecf13f5d0e79941
Source dataset
uspto-grants-2016_07
Patent number
US09388176B2

Reaction notes

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