Water → (+/-)-N-(3,4-dihydro-2H-1,5-benzodioxepin-7-ylmethyl)-N-isobutyl-3-(phenylamino)cyclopentanecarboxamide

HRID 1024502Notes

Reaction equation

HRID 1024502 reaction equation
Cl[C:2]1[C:7]2[O:8][CH2:9][CH2:10][CH2:11][O:12][C:6]=2[CH:5]=[C:4]([CH2:13][NH:14][CH2:15][CH:16]([CH3:18])[CH3:17])[CH:3]=1.[C:19]1([NH:25][CH:26]2[CH2:30][CH2:29][CH:28]([C:31]([OH:33])=O)[CH2:27]2)[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=1.Cl.C(N=C=NCCCN(C)C)C.O>CN(C1C=CN=CC=1)C.ClCCl>[O:8]1[C:7]2[CH:2]=[CH:3][C:4]([CH2:13][N:14]([CH2:15][CH:16]([CH3:18])[CH3:17])[C:31]([CH:28]3[CH2:29][CH2:30][CH:26]([NH:25][C:19]4[CH:20]=[CH:21][CH:22]=[CH:23][CH:24]=4)[CH2:27]3)=[O:33])=[CH:5][C:6]=2[O:12][CH2:11][CH2:10][CH2:9]1

Participants

7

Reactant 4

HCID 962WaterHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 43087680N-(9-chloro-3,4-dihydro-2H-1,5-benzodioxepin-7-ylmethyl)-2-methylpropan-1-amineHCID 57665758HCID 57665758, compound

Product 1

HCID 46831590(+/-)-N-(3,4-dihydro-2H-1,5-benzodioxepin-7-ylmethyl)-N-isobutyl-3-(phenylamino)cyclopentanecarboxamide

Reagents, catalysts & solvents 2

HCID 142844-(Dimethylamino)pyridineCatalystHCID 6344DichloromethaneSolvent

Procedure

The mixture of N-(9-chloro-3,4-dihydro-2H-1,5-benzodioxepin-7-ylmethyl)-2-methylpropan-1-amine (17 mg), 3-phenylaminocyclopentanecarboxylic acid (15 mg), 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride (20 mg), and N,N-dimethyl-4-aminopyridine (12 mg) in 5 ml dichloromethane was stirred at room temperature overnight. After addition of water (5 mL), the mixture was extracted with ethyl acetate (10 ml×2). The organic layer was washed with brine, dried over anhydrous sodium sulfate, and concentrated under reduced pressure. Preparative thin layer chromatography on silica (33% ethyl acetate in hexane) gave the product as a resin: MS (m+1)=423.3; H NMR (500 MHz, CDCl3) 0.95 (m, 6H), 1.30 (m, 4H), 1.75 (m, 2H), 1.90 (m, 1H), 1.95 (m, 1H), 2.15 (m, 1H), 2.30 (m, 1H), 2.65 (m, 2H), 3.00 (m, 1H), 4.00 (m, 2H), 4.40 (m, 2H), 4.15 (m, 4H), 5.20 (s, 1H), 6.6-6.8 (m, 3H), 7.1-7.6 (m, 5H).

Workup

  1. extractionthe mixture was extracted with ethyl acetate (10 ml×2)
  2. washThe organic layer was washed with brine
  3. dry with materialdried over anhydrous sodium sulfate
  4. concentrationconcentrated under reduced pressure
  5. customPreparative thin layer chromatography on silica (33% ethyl acetate in hexane) gave the product as a resin

Sources & evidence

ORD record
ord-b1bd13d23f3648bca528b646e0b3f834
Source dataset
uspto-grants-2014_05
Patent number
US08722896B2

Reaction notes

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