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Triethylamine → 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)-N-methylacetamide

HRID 886278
Notes
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Reaction equation

HRID 886278 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][CH3:43])=[O:41]>[I-].C([N+](CCCC)(CCCC)CCCC)CCC>[CH:2]([N:5]1[C:9]([C:10]2[N:19]=[C:18]3[C:17]4[CH:20]=[CH:21][C:22]([CH:24]5[CH2:29][CH2:28][N:27]([CH2:39][C:40]([NH:42][CH3:43])=[O:41])[CH2:26][CH2:25]5)=[CH:23][C:16]=4[O:15][CH2:14][CH2:13][N:12]3[CH:11]=2)=[N:8][C:7]([CH3:30])=[N:6]1)([CH3:4])[CH3:3]
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 667732-chloro-N-methylacetamideHCID 67050639HCID 67050639, compound

Product 1

HCID 683553782-(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)-N-methylacetamideYield 14.3%

Reagents, catalysts & solvents 1

HCID 67553
Tetrabutylammonium Iodide
Catalyst

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) was added triethylamine (107 μL, 0.77 mmol) followed by 2-chloro-N-methyl-acetamide (41 mg, 0.38 mmol). The resultant mixture was stirred overnight before the addition of tetrabutylammonium iodide (13 mg, 0.04 mmol) and the reaction stirred for 24 hours. The mixture was washed with water then extracted with 10% MeOH in DCM (×5). The combined organic layers were dried (MgSO4), concentrated in vacuo and purified by flash column chromatography (SiO2, gradient 0-10% MeOH in DCM) twice to afford 275 (23 mg, 0.05 mmol, 14%). LCMS: RT=2.63 min, [M+H]+=464. 1H NMR δ (ppm) (CDCl3): 8.42 (1H, d, J=8.30 Hz), 7.59 (1H, s), 7.00 (1H, dd, J=8.35, 1.83 Hz), 6.88 (1H, d, J=1.79 Hz), 5.91-5.81 (1H, m), 4.48-4.44 (2H, m), 4.42-4.36 (2H, m), 3.13-2.91 (4H, m), 2.85 (3H, d, J=4.98 Hz), 2.56-2.48 (1H, m), 2.39 (3H, s), 2.33 (2H, s), 1.87 (2H, s), 1.78 (2H, s), 1.54 (6H, d, J=6.65 Hz). NH not observed.

Workup

  1. washThe mixture was washed with water
  2. extractionthen extracted with 10% MeOH in DCM (×5)
  3. dry with materialThe combined organic layers were dried (MgSO4)
  4. concentrationconcentrated in vacuo
  5. custompurified by flash column chromatography (SiO2, gradient 0-10% MeOH in DCM) twice

Sources & evidence

ORD record
ord-061a821223d1424ab02ba9fcf3df903c
Source dataset
uspto-grants-2012_08
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08242104B2

Reaction notes

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