Fusaric Acid → 5-Butylpyridine-2-carboxylic acid [2-(2,6-dioxo piperidin-3-YL)-1,3-dioxo-2,3-dihydro-1H-isoindol-4-ylmethyl]amide

HRID 448440

Reaktionsgleichung

Reaktionsgleichung von HRID 448440
[CH3:1][CH2:2][CH2:3][CH2:4][C:5]1[CH:6]=[CH:7][C:8]([C:11]([OH:13])=O)=[N:9][CH:10]=1.S(Cl)(Cl)=O.Cl.[NH2:19][CH2:20][C:21]1[CH:29]=[CH:28][CH:27]=[C:26]2[C:22]=1[C:23](=[O:39])[N:24]([CH:31]1[CH2:36][CH2:35][C:34](=[O:37])[NH:33][C:32]1=[O:38])[C:25]2=[O:30].C(N(CC)CC)C>C1COCC1>[O:38]=[C:32]1[CH:31]([N:24]2[C:23](=[O:39])[C:22]3[C:26](=[CH:27][CH:28]=[CH:29][C:21]=3[CH2:20][NH:19][C:11]([C:8]3[CH:7]=[CH:6][C:5]([CH2:4][CH2:3][CH2:2][CH3:1])=[CH:10][N:9]=3)=[O:13])[C:25]2=[O:30])[CH2:36][CH2:35][C:34](=[O:37])[NH:33]1

Komponenten

6

Edukt 4

HCID 3442Fusaric AcidHCID 8471TriethylamineHCID 24386Thionyl ChlorideHCID 219885254-(aminomethyl)-2-(2,6-dioxopiperidin-3-yl)-2,3-dihydro-1H-isoindole-1,3-dione hydrochloride

Produkt 1

HCID 588273525-Butylpyridine-2-carboxylic acid [2-(2,6-dioxo piperidin-3-YL)-1,3-dioxo-2,3-dihydro-1H-isoindol-4-ylmethyl]amideAusbeute 64,7 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8028TetrahydrofuranLösungsmittel

Versuchsvorschrift

A mixture of fusaric acid (0.36 g, 2.0 mmol) and thionyl chloride (10 mL) was heated to reflux for 1 hour. Excess thionyl chloride was removed under vacuum. To the acid chloride, was then added 4-aminomethyl-2-(2,6-dioxopiperidin-3-yl)isoindole-1,3-dione hydrochloride (0.65 g, 2.0 mmol), THF (30 mL) and triethylamine (0.61 g, 6.0 mmol), and the resulting mixture was stirred at room temperature for 16 hours. The solvent was evaporated, and the crude residue was chromatographed using a methylene chloride-methanol gradient, eluting the product with 95:5 methylene chloride-methanol. This material was further purified by preparative HPLC, eluting with 1:1 acetonitrile-water, providing 0.58 g of the purified product in 64% yield: mp 137-139° C.; 1H NMR (DMSO-d6) δ 0.91 (t, J=7.3 Hz, 3H), 1.24-1.39 (m, 2H), 1.54-1.65 (m, 2H), 2.06-2.10 (m, 2H), 2.51-2.72 (m, 4H), 2.84-2.97 (m, 1H), 4.94 (d, J=6.4 Hz, 2H), 5.17 (dd, J=12.6 Hz, d=5.4 Hz, 1H), 7.66-7.71 (m, 1H), 7.77-7.86 (m, 3H), 7.97 (d, J=8.0 Hz, 1H), 8.54 (d, J=1.7 Hz, 1H), 9.43 (t, J=6.4 Hz, 1H), 11.16 (s, 1H); 13C NMR (DMSO-d6) δ 13.7, 21.6, 22.0, 31.0, 31.7, 32.6, 38.5, 48.9, 121.8, 121.9, 127.2, 131.6, 133.0, 134.8, 137.3, 139.2, 141.2, 147.5, 148.5, 164.5, 167.0, 167.6, 169.9, 172.8; Anal. calcd for C24H24N4O5.0.3H2O: C, 63.51; H, 5.46; N, 12.34. Found: C, 63.52; H, 5.55; N, 12.05.

Aufarbeitung

  1. temperaturewas heated
  2. temperatureto reflux for 1 hour
  3. customExcess thionyl chloride was removed under vacuum
  4. customThe solvent was evaporated
  5. customthe crude residue was chromatographed
  6. washeluting the product with 95:5 methylene chloride-methanol
  7. customThis material was further purified by preparative HPLC
  8. washeluting with 1:1 acetonitrile-water

Quellen und Nachweise

ORD-Eintrag
ord-fafd4deeaeec4d47b531d557a42350ee
Quelldatensatz
uspto-grants-2013_07
Patentnummer
US08481568B2

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