1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide → 6-{(1E)-3-[3-(Pentylsulfonyl)azetidin-1-yl]-3-oxoprop-1-en-1-yl}-3,4-dihydro-1,8-naphthyridin-2(1H)-one

HRID 633920Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 633920
Cl.[O:2]=[C:3]1[NH:12][C:11]2[N:10]=[CH:9][C:8](/[CH:13]=[CH:14]/[C:15]([OH:17])=O)=[CH:7][C:6]=2[CH2:5][CH2:4]1.Cl.[CH2:19]([S:24]([CH:27]1[CH2:30][NH:29][CH2:28]1)(=[O:26])=[O:25])[CH2:20][CH2:21][CH2:22][CH3:23].CCN(C(C)C)C(C)C.CCN=C=NCCCN(C)C>CN(C1C=CN=CC=1)C.CN(C=O)C>[CH2:19]([S:24]([CH:27]1[CH2:30][N:29]([C:15](=[O:17])/[CH:14]=[CH:13]/[C:8]2[CH:7]=[C:6]3[C:11](=[N:10][CH:9]=2)[NH:12][C:3](=[O:2])[CH2:4][CH2:5]3)[CH2:28]1)(=[O:26])=[O:25])[CH2:20][CH2:21][CH2:22][CH3:23]

Komponenten

7

Edukt 4

HCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 81531DiisopropylethylamineHCID 66905305(E)-3-(7-oxo-5,6,7,8-tetrahydro-1,8-naphthyridin-3-yl)acrylic Acid HydrochlorideHCID 671544343-(Pentylsulfonyl)azetidine hydrochloride

Produkt 1

HCID 529505286-{(1E)-3-[3-(Pentylsulfonyl)azetidin-1-yl]-3-oxoprop-1-en-1-yl}-3,4-dihydro-1,8-naphthyridin-2(1H)-oneAusbeute 19,2 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 142844-(Dimethylamino)pyridineKatalysatorHCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

A 16 mL vial flask was successively charged with (2E)-3-(7-oxo-5,6,7,8-tetrahydro-1,8-naphthyridin-3-yl)acrylic acid hydrochloride (40 mg, 0.16 mmol), DMF (3.9 mL), 3-(pentylsulfonyl)azetidine hydrochloride (39 mg, 0.17 mmol; which may be prepared as described in Step 4), DIPEA (106 μL, 0.64 mmol), DMAP (2 mg, 0.02 mmol) and EDAC (36 mg, 0.19 mmol). The reaction mixture was stirred at room temperature overnight and concentrated to dryness. The residue was purified on preparative TLC (eluent: 90/10 DCM/MeOH) then triturated in pentane with a drop of acetone to give the title compound (12 mg, 19%) as a white solid.

Aufarbeitung

  1. concentrationconcentrated to dryness
  2. customThe residue was purified on preparative TLC (eluent: 90/10 DCM/MeOH)
  3. customthen triturated in pentane with a drop of acetone

Quellen und Nachweise

ORD-Eintrag
ord-9dedf72fbf1e4616bbcaa22b92cd7c75
Quelldatensatz
uspto-grants-2016_04
Patentnummer
US09321769B2

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