Reaktionsgleichung
[OH:1][CH:2]([C:6]1[CH:11]=[CH:10][C:9]([C:12]2[N:16]=[C:15]([C:17]3[O:21][N:20]=[C:19]([C:22]4[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=4)[C:18]=3[C:28]([F:31])([F:30])[F:29])[O:14][N:13]=2)=[CH:8][CH:7]=1)[C:3]([OH:5])=O.[S:32]1[CH:36]=[CH:35][C:34]([CH2:37][NH2:38])=[CH:33]1.CN1CCOCC1.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F>CN(C=O)C>[OH:1][CH:2]([C:6]1[CH:7]=[CH:8][C:9]([C:12]2[N:16]=[C:15]([C:17]3[O:21][N:20]=[C:19]([C:22]4[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=4)[C:18]=3[C:28]([F:31])([F:29])[F:30])[O:14][N:13]=2)=[CH:10][CH:11]=1)[C:3]([NH:38][CH2:37][C:34]1[CH:35]=[CH:36][S:32][CH:33]=1)=[O:5]Komponenten
Edukt 4
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
(R/S)-2-Hydroxy-2-(4-(5-(3-phenyl-4-(trifluoromethyl)isoxazol-5-yl)-1,2,4-oxadiazol-3-yl)phenyl)acetic acid (Int-V, 30 mg, 0.070 mmol), thiophen-3-ylmethanamine (11.8 mg, 0.104 mmol), 4-methylmorpholine (28.1 mg, 0.278 mmol), and HATU (34.4 mg, 0.090 mmol) were added to DMF (1 mL). This was stirred for 1 h before it was purified via preparative LCMS with the following conditions: Column: Waters XBridge C18, 19×250 mm, 5-μm particles; Guard Column: Waters XBridge C18, 19×10 mm, 5-μm particles; Mobile Phase A: 5:95 methanol:water with 10-mM ammonium acetate; Mobile Phase B: 95:5 methanol:water with 10-mM ammonium acetate; Gradient: 50-100% B over 25 minutes, then a 5-minute hold at 100% B; Flow: 20 mL/min. Fractions containing the desired product were combined and dried via centrifugal evaporation to give (R/S)-2-hydroxy-2-(4-(5-(3-phenyl-4-(trifluoromethyl)isoxazol-5-yl)-1,2,4-oxadiazol-3-yl)phenyl)-N-(thiophen-3-ylmethyl)acetamide (12.9 mg, 0.025 mmol, 35.2% yield): LCMS=527.1 [M+H]+; 1H NMR (400 MHz, methanol-d4) δ ppm 8.16 (2 H, d, J=8.53 Hz), 7.52-7.76 (7 H, m), 7.26 (1 H, dd, J=5.02, 1.25 Hz), 6.85-7.01 (2 H, m), 5.16 (1 H, s), 4.60 (2 H, s); HPLC peak RT=3.0 min (Method E).
Aufarbeitung
- customwas purified via preparative LCMS with the following conditions
- waitGradient: 50-100% B over 25 minutes
- customa 5-minute hold
- additionFractions containing the desired product
- customdried via centrifugal evaporation
Quellen und Nachweise
- ORD-Eintrag
- ord-89e85ce2ee8a453ab22c4c6e913d687a
- Quelldatensatz
- uspto-grants-2014_09
- Patentnummer
- US08835470B2
Verknüpfte Notizen
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