Triethylamine → N-ethyl-2-(4-(2-(1-isopropyl-3-methyl-1H-1,2,4-triazol-5-yl)-5,6-dihydrobenzo[f]imidazo[1,2-d][1,4]oxazepin-9-yl)piperidin-1-yl)acetamide

HRID 1498338Notes

Reaction equation

HRID 1498338 reaction equation
Cl.[CH:2]([N:5]1[C:9]([C:10]2[N:19]=[C:18]3[N:12]([CH2:13][CH2:14][O:15][C:16]4[CH:23]=[C:22]([CH:24]5[CH2:29][CH2:28][NH:27][CH2:26][CH2:25]5)[CH:21]=[CH:20][C:17]=43)[CH:11]=2)=[N:8][C:7]([CH3:30])=[N:6]1)([CH3:4])[CH3:3].C(N(CC)CC)C.Cl[CH2:39][C:40]([NH:42][CH2:43][CH3:44])=[O:41]>C(Cl)Cl.[I-].C([N+](CCCC)(CCCC)CCCC)CCC>[CH2:43]([NH:42][C:40](=[O:41])[CH2:39][N:27]1[CH2:28][CH2:29][CH:24]([C:22]2[CH:21]=[CH:20][C:17]3[C:18]4[N:12]([CH:11]=[C:10]([C:9]5[N:5]([CH:2]([CH3:4])[CH3:3])[N:6]=[C:7]([CH3:30])[N:8]=5)[N:19]=4)[CH2:13][CH2:14][O:15][C:16]=3[CH:23]=2)[CH2:25][CH2:26]1)[CH3:44]

Participants

6

Reactant 3

HCID 8471TriethylamineHCID 660442-Chloro-N-ethylacetamideHCID 67050639HCID 67050639, compound

Product 1

HCID 68355380N-ethyl-2-(4-(2-(1-isopropyl-3-methyl-1H-1,2,4-triazol-5-yl)-5,6-dihydrobenzo[f]imidazo[1,2-d][1,4]oxazepin-9-yl)piperidin-1-yl)acetamideYield 55%

Reagents, catalysts & solvents 2

HCID 67553Tetrabutylammonium IodideCatalystHCID 6344DichloromethaneSolvent

Procedure

To a suspension of 2-(2-isopropyl-5-methyl-2H-[1,2,4]triazol-3-yl)-8-piperidin-4-yl-4,5-dihydro-6-oxa-1,3a-diaza-benzo[e]azulene hydrochloride (150 mg, 0.35 mmol) in DCM (2 mL) was added triethylamine (107 μL, 0.77 mmol). The resultant mixture was stirred for 10 minutes before the addition of 2-chloro-N-ethyl-acetamide (46 mg, 0.38 mmol) and tetrabutylammonium iodide (13 mg, 0.04 mmol). The reaction was stirred at RT for 4 days before the reaction was washed with sodium hydrogen carbonate solution (sat. aq.). The aqueous phase was extracted with 10% MeOH in DCM (×3) and the combined organic layers dried (Na2SO4) then concentrated in vacuo. The resultant residue was purified by flash column chromatography (SiO2, gradient 0-10% MeOH in DCM) affording 276 (91 mg, 0.19 mmol, 55%). LCMS: RT=2.75 min, [M+H]+=478. 1H NMR δ (ppm) (CDCl3): 8.43 (1 H, d, J=8.29 Hz), 7.59 (1 H, s), 7.16 (1 H, s), 7.00 (1 H, dd, J=8.34, 1.81 Hz), 6.88 (1 H, d, J=1.76 Hz), 5.91-5.80 (1 H, m), 4.48-4.44 (2 H, m), 4.42-4.37 (2 H, m), 3.37-3.26 (2 H, m), 3.06-2.88 (4 H, m), 2.57-2.47 (1 H, m), 2.38 (3 H, s), 2.30 (2 H, s), 1.87 (2 H, d, J=12.74 Hz), 1.76 (2 H, s), 1.54 (6 H, d, J=6.65 Hz), 1.15 (3 H, t, J=7.26 Hz).

Workup

  1. washwas washed with sodium hydrogen carbonate solution (sat. aq.)
  2. extractionThe aqueous phase was extracted with 10% MeOH in DCM (×3)
  3. dry with materialthe combined organic layers dried (Na2SO4)
  4. concentrationthen concentrated in vacuo
  5. customThe resultant residue was purified by flash column chromatography (SiO2, gradient 0-10% MeOH in DCM)

Sources & evidence

ORD record
ord-5b6ab033990946d4be4f00005b7dcddb
Source dataset
uspto-grants-2015_12
Patent number
US09198918B2

Reaction notes

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