Diisopropylethylamine → Tetrahydro-furan-3-carboxylic acid {2-methyl-5-[5-(3,4,5-trichloro-phenyl)-5-trifluoromethyl-4,5-dihydro-isoxazol-3-yl]-furan-3-ylmethyl}-amide

HRID 68581

Reaktionsgleichung

Reaktionsgleichung von HRID 68581
[O:1]1[CH2:5][CH2:4][CH:3]([C:6]([OH:8])=O)[CH2:2]1.C1CN([P+](ON2N=NC3C=CC=CC2=3)(N2CCCC2)N2CCCC2)CC1.F[P-](F)(F)(F)(F)F.CCN(C(C)C)C(C)C.[CH3:51][C:52]1[O:53][C:54]([C:59]2[CH2:63][C:62]([C:68]3[CH:73]=[C:72]([Cl:74])[C:71]([Cl:75])=[C:70]([Cl:76])[CH:69]=3)([C:64]([F:67])([F:66])[F:65])[O:61][N:60]=2)=[CH:55][C:56]=1[CH2:57][NH2:58]>ClCCl>[CH3:51][C:52]1[O:53][C:54]([C:59]2[CH2:63][C:62]([C:68]3[CH:73]=[C:72]([Cl:74])[C:71]([Cl:75])=[C:70]([Cl:76])[CH:69]=3)([C:64]([F:66])([F:65])[F:67])[O:61][N:60]=2)=[CH:55][C:56]=1[CH2:57][NH:58][C:6]([CH:3]1[CH2:4][CH2:5][O:1][CH2:2]1)=[O:8]

Komponenten

6

Edukt 4

HCID 81531DiisopropylethylamineHCID 2724699PyBOPHCID 4661317(R)-Tetrahydro-3-furoic acidHCID 86706655HCID 86706655, Verbindung

Produkt 1

HCID 86706656Tetrahydro-furan-3-carboxylic acid {2-methyl-5-[5-(3,4,5-trichloro-phenyl)-5-trifluoromethyl-4,5-dihydro-isoxazol-3-yl]-furan-3-ylmethyl}-amideAusbeute 76,9 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

Tetrahydro-furan-3-carboxylic acid (81 mg), PyBOP (268 mg) and DIPEA (0.244 ml) are added to a solution of C-{2-methyl-5-[5-(3,4,5-trichloro-phenyl)-5-trifluoromethyl-4,5-dihydro-isoxazol-3-yl]-furan-3-yl}-methylamine (200 mg) in dichloromethane (4 ml). After 24 hours at room temperature, the reaction is quenched with water. The reaction mixture is extracted three times with dichloromethane. The combined organic phases are washed with a saturated solution of NaHCO3 and with a saturated aqueous solution of NaCl, dried over Na2SO4 and concentrated in vacuo. The crude product is purified on a semi-preparative HPLC to yield tetrahydro-furan-3-carboxylic acid {2-methyl-5-[5-(3,4,5-trichloro-phenyl)-5-trifluoromethyl-4,5-dihydro-isoxazol-3-yl]-furan-3-ylmethyl}-amide (189 mg, compound 2.3 in Table 2) as a white foam. MS (HPLC/MS): 525 (MH+). Retention time: 1.97 min.

Aufarbeitung

  1. customthe reaction is quenched with water
  2. extractionThe reaction mixture is extracted three times with dichloromethane
  3. washThe combined organic phases are washed with a saturated solution of NaHCO3 and with a saturated aqueous solution of NaCl
  4. dry with materialdried over Na2SO4
  5. concentrationconcentrated in vacuo
  6. customThe crude product is purified on a semi-preparative HPLC

Quellen und Nachweise

ORD-Eintrag
ord-4162567a08bb4382b1be2cae6394aba4
Quelldatensatz
uspto-grants-2014_09
Patentnummer
US08822466B2

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