1,1'-Carbonyldiimidazole → (R)-3-[3,5-Dichloro-4'-(4,4-difluoro-piperidine-1-carbonyl)-biphenyl-4-ylmethyl]-1-(4-triisopropylsilanyloxy-piperidin-1-yl)-pyrrolidin-2-one
Reaktionsgleichung
[Cl:1][C:2]1[CH:3]=[C:4]([C:33]2[CH:38]=[CH:37][C:36]([C:39]([OH:41])=O)=[CH:35][CH:34]=2)[CH:5]=[C:6]([Cl:32])[C:7]=1[CH2:8][C@@H:9]1[CH2:13][CH2:12][N:11]([N:14]2[CH2:19][CH2:18][CH:17]([O:20][Si:21]([CH:28]([CH3:30])[CH3:29])([CH:25]([CH3:27])[CH3:26])[CH:22]([CH3:24])[CH3:23])[CH2:16][CH2:15]2)[C:10]1=[O:31].C(N1C=CN=C1)(N1C=CN=C1)=O.Cl.[F:55][C:56]1([F:62])[CH2:61][CH2:60][NH:59][CH2:58][CH2:57]1.C(N(C(C)C)CC)(C)C>C(Cl)Cl.C(OCC)(=O)C>[Cl:32][C:6]1[CH:5]=[C:4]([C:33]2[CH:34]=[CH:35][C:36]([C:39]([N:59]3[CH2:60][CH2:61][C:56]([F:62])([F:55])[CH2:57][CH2:58]3)=[O:41])=[CH:37][CH:38]=2)[CH:3]=[C:2]([Cl:1])[C:7]=1[CH2:8][C@@H:9]1[CH2:13][CH2:12][N:11]([N:14]2[CH2:15][CH2:16][CH:17]([O:20][Si:21]([CH:25]([CH3:26])[CH3:27])([CH:22]([CH3:24])[CH3:23])[CH:28]([CH3:29])[CH3:30])[CH2:18][CH2:19]2)[C:10]1=[O:31]Komponenten
7
Edukt 4
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 2
Versuchsvorschrift
Treat a solution of (R)-3′,5′-dichloro-4′-[2-oxo-1-(4-triisopropylsilanyloxy-piperidin-1-yl)-pyrrolidin-3-ylmethyl]-biphenyl-4-carboxylic acid (4.0 g, 6.45 mmol) in CH2Cl2 (40 mL) with 1,1′-carbonyldiimidazole (2.09 g, 12.91 mmol) and stir for 1 hour at room temperature. Treat the reaction with 4,4-difluoropiperidine hydrochloride (1.53 g, 9.68 mmol) and diisopropylethylamine (1.69 g, 9.68 mmol) and stir for 12 hours at room temperature. Load the mixture on silica gel column and flash with 25% to 35% ethyl acetate in hexanes to afford 3.8 g (81%) of the title compound. MS (m/z): 722 (M+).
Aufarbeitung
- additionTreat
- stirringstir for 12 hours at room temperature
Quellen und Nachweise
- ORD-Eintrag
- ord-fccaca68eaae4022ae6cdb177c588f35
- Quelldatensatz
- uspto-grants-2012_04
- Patentnummer
- US08153807B2
Notizen zur Reaktion
Wird geladen…