1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide → HCID 52950748, compound

HRID 634004Notes

Reaction equation

HRID 634004 reaction equation
Cl.[Cl:2][C:3]1[CH:4]=[C:5]([CH2:8][O:9][CH:10]2[CH2:13][NH:12][CH2:11]2)[S:6][CH:7]=1.CCN=C=NCCCN(C)C.C1C=CC2N(O)N=NC=2C=1.C(N(C(C)C)CC)(C)C.Cl.[O:45]=[C:46]1[NH:55][C:54]2[N:53]=[CH:52][C:51](/[CH:56]=[CH:57]/[C:58](O)=[O:59])=[CH:50][C:49]=2[CH2:48][CH2:47]1>CN(C)C=O.O.C(OCC)(=O)C>[Cl:2][C:3]1[CH:4]=[C:5]([CH2:8][O:9][CH:10]2[CH2:11][N:12]([C:58](=[O:59])/[CH:57]=[CH:56]/[C:51]3[CH:50]=[C:49]4[C:54](=[N:53][CH:52]=3)[NH:55][C:46](=[O:45])[CH2:47][CH2:48]4)[CH2:13]2)[S:6][CH:7]=1

Participants

9

Reactant 5

HCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 757711-HydroxybenzotriazoleHCID 81531DiisopropylethylamineHCID 66905305(E)-3-(7-oxo-5,6,7,8-tetrahydro-1,8-naphthyridin-3-yl)acrylic Acid HydrochlorideHCID 67154565HCID 67154565, compound

Product 1

HCID 52950748HCID 52950748, compoundYield 23.5%

Reagents, catalysts & solvents 3

HCID 962WaterSolventHCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Procedure

3-((4-Chlorothiophen-2-yl)methoxy)-azetidine hydrochloride (141 mg, 0.59 mmol), EDCI (113 mg, 0.59 mmol), HOBt (82 mg, 0.59 mmol) and diisopropylethylamine (171 μL, 1.00 mmol) were successively added to a solution of (E)-3-(7-oxo-5,6,7,8-tetrahydro-1,8-naphthyridin-3-yl)-acrylic acid hydrochloride (100 mg, 0.39 mmol) in dimethylformamide (6 mL) at room temperature. The reaction mixture was stirred overnight and then diluted by addition of ethyl acetate (40 mL) and water (40 mL). The aqueous phase was extracted with ethyl acetate (2×40 mL). The combined organic phases were washed with a saturated solution of sodium chloride (3×40 mL), dried over sodium sulfate, filtered and concentrated to dryness. The residue was triturated in diethyl ether to afford the title compound as a pale yellow solid (37 mg, 23%).

Workup

  1. extractionThe aqueous phase was extracted with ethyl acetate (2×40 mL)
  2. washThe combined organic phases were washed with a saturated solution of sodium chloride (3×40 mL)
  3. dry with materialdried over sodium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated to dryness
  6. customThe residue was triturated in diethyl ether

Sources & evidence

ORD record
ord-01f4bfb3910f43f28ddc2e149a0cac8a
Source dataset
uspto-grants-2016_04
Patent number
US09321769B2

Reaction notes

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