Acetyl chloride → 1-{2-[3-Methoxy-4-(4-methyl-imidazol-1-yl)-phenylamino]-8-phenyl-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-6-yl}-ethanone

HRID 2076039Notes

Reaction equation

HRID 2076039 reaction equation
Cl.[CH3:2][O:3][C:4]1[CH:5]=[C:6]([NH:16][C:17]2[N:18]=[CH:19][C:20]3[CH2:26][NH:25][CH2:24][CH:23]([C:27]4[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=4)[C:21]=3[N:22]=2)[CH:7]=[CH:8][C:9]=1[N:10]1[CH:14]=[C:13]([CH3:15])[N:12]=[CH:11]1.C(N(C(C)C)CC)(C)C.[C:42](Cl)(=[O:44])[CH3:43]>C(Cl)Cl>[CH3:2][O:3][C:4]1[CH:5]=[C:6]([NH:16][C:17]2[N:18]=[CH:19][C:20]3[CH2:26][N:25]([C:42](=[O:44])[CH3:43])[CH2:24][CH:23]([C:27]4[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=4)[C:21]=3[N:22]=2)[CH:7]=[CH:8][C:9]=1[N:10]1[CH:14]=[C:13]([CH3:15])[N:12]=[CH:11]1

Participants

5

Reactant 3

HCID 6367Acetyl chlorideHCID 81531DiisopropylethylamineHCID 44194157[3-Methoxy-4-(4-methyl-imidazol-1-yl)-phenyl]-(8-phenyl-5,6,7,8-tetrahydro-pyrido[4,3-d]pyrimidin-2-yl)-amine hydrochloride

Product 1

HCID 441941591-{2-[3-Methoxy-4-(4-methyl-imidazol-1-yl)-phenylamino]-8-phenyl-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-6-yl}-ethanoneYield 30%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a suspension of [3-methoxy-4-(4-methyl-imidazol-1-yl)-phenyl]-(8-phenyl-5,6,7,8-tetrahydro-pyrido[4,3-d]pyrimidin-2-yl)-amine hydrochloride (65 mg, 0.15 mmol) in methylen chloride (2 mL) was added at room temperature NN,-diisopropyl ethyl amine (28 mg, 0.22 mmol) and after 2 minutes acetyl chloride (12.5 mg, 0.16 mmol). The reaction was stirred at room temperature over night. The solvent was evaporated under reduced pressure and the residue was purified by column chromatography on silica gel using dichloromethane/methanol (19:1 v/v) as eluent to yield the title compound (20 mg, 30%) as a yellow gum. MS ISP (m/e): 455.3 (100) [(M+H)+]. 1H NMR (CDCl3, 300 MHz): δ (ppm)=8.38 (s, 1H), 7.61 (s, 1H), 7.56 (s, 1H), 7.20-7.33 (m, 3H), 7.05-7.08 (m, 3H), 6.81 (s, 1H), 6.79 (d, 1H), 5.18 (d, 1H), 4.46 (d, 1H), 4.21 (t, 1H), 3.90 (m, 2H), 3.46 (s, 3H), 2.27 (s, 3H), 1.71 (s, 3H).

Workup

  1. additionwas added at room temperature NN
  2. customThe solvent was evaporated under reduced pressure
  3. customthe residue was purified by column chromatography on silica gel

Sources & evidence

ORD record
ord-c567f903cb5d4dedadb399e514eba486
Source dataset
uspto-grants-2011_04
Patent number
US07923450B2

Reaction notes

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