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

HRID 1692086Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1692086
[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

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

  1. additionTreat
  2. stirringstir for 12 hours at room temperature

Quellen und Nachweise

ORD-Eintrag
ord-fccaca68eaae4022ae6cdb177c588f35
Quelldatensatz
uspto-grants-2012_04
Patentnummer
US08153807B2

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