m-Toluidine → 3-(2-amino-7,8-dihydropyrido[4,3-d]pyrimidin-6(5H)-yl)-N-(m-tolyl)benzamide

HRID 338679Notes

Reaction equation

HRID 338679 reaction equation
[NH2:1][C:2]1[N:3]=[CH:4][C:5]2[CH2:11][N:10]([C:12]3[CH:13]=[C:14]([CH:18]=[CH:19][CH:20]=3)[C:15](O)=[O:16])[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:13]=[C:14]([CH:18]=[CH:19][CH:20]=3)[C:15]([NH:54][C:55]3[CH:56]=[C:57]([CH3:61])[CH:58]=[CH:59][CH:60]=3)=[O:16])[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 866958153-(2-amino-7,8-dihydropyrido[4,3-d]pyrimidin-6(5H)-yl)benzoic acid

Product 1

HCID 717353583-(2-amino-7,8-dihydropyrido[4,3-d]pyrimidin-6(5H)-yl)-N-(m-tolyl)benzamideYield 62%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

A mixture of 3-(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 0.9 mL DMF was stirred at room temperature for 3 hours, then meta-toluidine (0.016 mL, 0.15 mmol) added and the reaction continued for 23 hours at room temperature. 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 tan solid (22 mg, 62%). 1H NMR (DMSO-d6) δ: 10.07 (s, 1H), 8.13 (s, 1H), 7.54-7.62 (m, 2H), 7.50 (s, 1H), 7.31-7.41 (m, 2H), 7.19-7.26 (m, 2H), 6.92 (d, J=7.6 Hz, 1H), 6.41 (s, 2H), 4.29 (s, 2H), 3.65 (t, J=6.0 Hz, 2H), 2.77 (t, J=5.9 Hz, 2H), 2.31 (s, 3H).

Workup

  1. waitthe reaction continued for 23 hours at room temperature
  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-d0e202b8ad564016908adfd996f6f1a4
Source dataset
uspto-grants-2014_11
Patent number
US08889870B2

Reaction notes

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