Ammonium Chloride → HCID 66778004, compound

HRID 2091320Notes

Reaction equation

HRID 2091320 reaction equation
[CH:1]1([CH:7]([NH:18][C:19]2[CH:27]=[CH:26][C:22]([C:23](O)=[O:24])=[CH:21][CH:20]=2)[C:8]2[S:16][C:15]3[C:10](=[N:11][CH:12]=[CH:13][CH:14]=3)[C:9]=2[CH3:17])[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1.Cl.[CH2:29]([O:31][C:32](=[O:36])[CH2:33][CH2:34][NH2:35])[CH3:30].O.ON1C2C=CC=CC=2N=N1.Cl.C(N=C=NCCCN(C)C)C.[Cl-].[NH4+]>CN(C)C=O.C(N(CC)CC)C>[CH:1]1([CH:7]([NH:18][C:19]2[CH:27]=[CH:26][C:22]([C:23]([NH:35][CH2:34][CH2:33][C:32]([O:31][CH2:29][CH3:30])=[O:36])=[O:24])=[CH:21][CH:20]=2)[C:8]2[S:16][C:15]3[C:10](=[N:11][CH:12]=[CH:13][CH:14]=3)[C:9]=2[CH3:17])[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1

Participants

8

Reactant 5

HCID 25517Ammonium ChlorideHCID 458475beta-Alanine, ethyl ester, hydrochlorideHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 27960291-Hydroxybenzotriazole hydrateHCID 667781814-{[Cyclohexyl(3-methylthieno[3,2-b]pyridin-2-yl)methyl]amino}benzoic acid

Product 1

HCID 66778004HCID 66778004, compoundYield 87.3%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 8471TriethylamineSolvent

Procedure

To a mixture of 4-{[cyclohexyl(3-methylthieno[3,2-b]pyridin-2-yl)methyl]amino}benzoic acid (300 mg) synthesized above, β-alanine ethyl ester hydrochloride (181 mg), 1-hydroxybenzotriazole monohydrate (181 mg), triethylamine (329 μL) and N,N-dimethylformamide (10 mL) was added 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride (226 mg), and the mixture was stirred at room temperature for 1 day. Saturated aqueous ammonium chloride solution was added to quench the reaction, and the reaction mixture was extracted with ethyl acetate. The extract was washed with saturated aqueous sodium hydrogen carbonate solution and saturated brine, dried over magnesium sulfate, and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (60-100% ethyl acetate/hexane) to give the title object compound (330 mg, 87%) as a pale-brown solid.

Workup

  1. customto quench
  2. customthe reaction
  3. extractionthe reaction mixture was extracted with ethyl acetate
  4. washThe extract was washed with saturated aqueous sodium hydrogen carbonate solution and saturated brine
  5. dry with materialdried over magnesium sulfate
  6. concentrationconcentrated under reduced pressure
  7. customThe residue was purified by silica gel column chromatography (60-100% ethyl acetate/hexane)

Sources & evidence

ORD record
ord-aeef1b405bcc4981b8eae288de56a9ec
Source dataset
uspto-grants-2013_05
Patent number
US08436043B2

Reaction notes

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