3-Methyl-5-isoxazolecarboxylic acid → HCID 86759118, Verbindung

HRID 396726

Reaktionsgleichung

Reaktionsgleichung von HRID 396726
[CH3:1][C:2]1[O:6][N:5]=[C:4]([C:7]([OH:9])=O)[CH:3]=1.F[P-](F)(F)(F)(F)F.N1(OC(N(C)C)=[N+](C)C)C2N=CC=CC=2N=N1.C(N(C(C)C)CC)(C)C.[NH2:43][C@@H:44]([C:50]1[CH:51]=[C:52]2[C:57](=[CH:58][CH:59]=1)[N:56]([C:60]([O:62][C:63]([CH3:66])([CH3:65])[CH3:64])=[O:61])[CH2:55][CH2:54][CH2:53]2)[CH2:45][C:46]([O:48][CH3:49])=[O:47]>CN(C)C=O>[C:60]([N:56]1[C:57]2[C:52](=[CH:51][C:50]([C@H:44]([NH:43][C:7]([C:4]3[CH:3]=[C:2]([CH3:1])[O:6][N:5]=3)=[O:9])[CH2:45][C:46]([O:48][CH3:49])=[O:47])=[CH:59][CH:58]=2)[CH2:53][CH2:54][CH2:55]1)([O:62][C:63]([CH3:66])([CH3:65])[CH3:64])=[O:61]

Komponenten

6

Edukt 4

HCID 769473-Methyl-5-isoxazolecarboxylic acidHCID 81531DiisopropylethylamineHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 69563649HCID 69563649, Verbindung

Produkt 1

HCID 86759118HCID 86759118, Verbindung

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

A solution of 5-methyl-isoxazole-3-carboxylic acid (65 mg) in dimethylformamide (30 ml) was treated successively with O-(7-azabenzotriazol-1-yl)-N,N,N′,N′-tetramethyluronium hexafluorophosphate (190 mg), diisopropylethylamine (1 ml) and methyl (R) 3-amino-3-(1-boc-1,2,3,4-tetrahydro-quinolin-6-yl)-propionate (200 mg, Reference Example 14). After standing at room temperature overnight the mixture was evaporated to low bulk and the residue partitioned between ethyl acetate and dilute hydrochloric acid. The layers were separated and the organic layer was washed with sodium carbonate solution, dried, and evaporated. The residue was purified by flash chromatography to give the title compound as an orange gum, 310 mg.

Aufarbeitung

  1. customthe mixture was evaporated to low bulk
  2. customthe residue partitioned between ethyl acetate and dilute hydrochloric acid
  3. customThe layers were separated
  4. washthe organic layer was washed with sodium carbonate solution
  5. customdried
  6. customevaporated
  7. customThe residue was purified by flash chromatography

Quellen und Nachweise

ORD-Eintrag
ord-e93d24a103e14d3699559b4987aab17e
Quelldatensatz
uspto-grants-2003_08
Patentnummer
US06608084B1

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