Triethylamine → N-[2-(8-chloro-10,11-dihydrodibenz[b,f][1,4]oxazepin-10-yl)-2-oxoethyl]-4-pyridinepropanamide, monohydrochloride

HRID 1975675Notes

Reaction equation

HRID 1975675 reaction equation
C(N(CC)CC)C.[NH2:8][CH2:9][C:10]([N:12]1[CH2:18][C:17]2[CH:19]=[CH:20][CH:21]=[CH:22][C:16]=2[O:15][C:14]2[CH:23]=[CH:24][C:25]([Cl:27])=[CH:26][C:13]1=2)=[O:11].Cl.[N:29]1[CH:34]=[CH:33][C:32]([CH2:35][CH2:36][C:37](O)=[O:38])=[CH:31][CH:30]=1.Cl.CN(C)CCCN=C=NCC>CN(C)C=O>[ClH:27].[Cl:27][C:25]1[CH:24]=[CH:23][C:14]2[O:15][C:16]3[CH:22]=[CH:21][CH:20]=[CH:19][C:17]=3[CH2:18][N:12]([C:10](=[O:11])[CH2:9][NH:8][C:37](=[O:38])[CH2:36][CH2:35][C:32]3[CH:33]=[CH:34][N:29]=[CH:30][CH:31]=3)[C:13]=2[CH:26]=1

Participants

6

Reactant 4

HCID 8471TriethylamineHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 1066106110-(Aminoacetyl)-8-chloro-10,11-dihydrodibenz-[b,f][1,4]oxazepineHCID 241952853-(Pyridin-4-yl)propanoic acid hydrochloride

Product 1

HCID 131717914N-[2-(8-chloro-10,11-dihydrodibenz[b,f][1,4]oxazepin-10-yl)-2-oxoethyl]-4-pyridinepropanamide, monohydrochloride

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Conditions

Temperature
5 °C

Procedure

Triethylamine (0.8 mi) was added to a stirred mixture of 10-(aminoacetyl)-8-chloro-10,11-dihydrodibenz-[b,f][1,4]oxazepine (0.77 gram) and 4-pyridinepropanoic acid, monohydrochloride (0.50 gram) in dimethylformamide (10 mi) at room temperature under a nitrogen atmosphere. After 5 minutes, the mixture was cooled to 5° C. in an ice bath, and 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide, hydrochloride (0.56 gram) was added. The reaction was stirred at room temperature under a nitrogen atmosphere for 60 hours, partitioned between saturated aqueous sodium bicarbonate (100 mL) and ethyl acetate (75 mL), and filtered. The layers of the filtrate were separated, and the aqueous layer was extracted with ethyl acetate (2×50 mL). The ethyl acetate extracts were combined, washed with aqueous saturated sodium bicarbonate (2×100 mL), water (100 mL), and brine (100 mL), dried over MgSO4, and evaporated in vacuo. The crude product was purified by flash chromatography through silica gel 60 (350 mL) using 9:1 ethyl acetate:ethanol. The purified product was taken up in ethyl acetate and treated with 9.5M HCl in ethanol to pH 1. The precipitated product was collected by filtration and dried in vacuo at 80° C. Yield: 0.233 gram (19%). Analysis calculated for C23H20ClN3O3 ×1 HCl: C, 60.27; H, 4.62; N, 9.17; Cl, 15.47. Found: C, 59.88; H, 4.66; N, 8.99; Cl, 15.58.

Workup

  1. custompartitioned between saturated aqueous sodium bicarbonate (100 mL) and ethyl acetate (75 mL)
  2. filtrationfiltered
  3. customThe layers of the filtrate were separated
  4. extractionthe aqueous layer was extracted with ethyl acetate (2×50 mL)
  5. washwashed with aqueous saturated sodium bicarbonate (2×100 mL), water (100 mL), and brine (100 mL)
  6. dry with materialdried over MgSO4
  7. customevaporated in vacuo
  8. customThe crude product was purified by flash chromatography through silica gel 60 (350 mL)
  9. additiontreated with 9.5M HCl in ethanol to pH 1
  10. filtrationThe precipitated product was collected by filtration
  11. customdried in vacuo at 80° C

Sources & evidence

ORD record
ord-b69d43bcee7d4be8b6c31c1fbad38c8a
Source dataset
uspto-grants-1994_02
Patent number
US05288719

Reaction notes

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