Trifluoroacetic acid → rac-(2R,3S,4R,5S)-3-(3-chloro-2-fluoro-phenyl)-4-(4-chloro-2-fluoro-phenyl)-4-cyano-5-{2,2-dimethyl-4-[2-(2,2,2-trifluoro-acetoxy)-ethoxy]-butyl}-pyrrolidine-2-carboxylic acid trifluoroacetic acid

HRID 1807002Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1807002
C([O:5][C:6]([CH:8]1[CH:12]([C:13]2[CH:18]=[CH:17][CH:16]=[C:15]([Cl:19])[C:14]=2[F:20])[C:11]([C:23]2[CH:28]=[CH:27][C:26]([Cl:29])=[CH:25][C:24]=2[F:30])([C:21]#[N:22])[CH:10]([CH2:31][C:32]([CH3:47])([CH3:46])[CH2:33][CH2:34][O:35][CH2:36][CH2:37][O:38][Si](C(C)(C)C)(C)C)[NH:9]1)=[O:7])(C)(C)C.[F:48][C:49]([F:54])([F:53])[C:50]([OH:52])=[O:51]>ClCCl>[F:48][C:49]([F:54])([F:53])[C:50]([OH:52])=[O:51].[Cl:19][C:15]1[C:14]([F:20])=[C:13]([CH:12]2[C:11]([C:23]3[CH:28]=[CH:27][C:26]([Cl:29])=[CH:25][C:24]=3[F:30])([C:21]#[N:22])[CH:10]([CH2:31][C:32]([CH3:47])([CH3:46])[CH2:33][CH2:34][O:35][CH2:36][CH2:37][O:38][C:50](=[O:51])[C:49]([F:54])([F:53])[F:48])[NH:9][CH:8]2[C:6]([OH:5])=[O:7])[CH:18]=[CH:17][CH:16]=1

Komponenten

4

Edukt 2

HCID 6422Trifluoroacetic acidHCID 67296795rac-(2R,3S,4R,5S)-5-{4-[2-(tert-butyl-dimethyl-silanyloxy)-ethoxy]-2,2-dimethyl-butyl}-3-(3-chloro-2-fluoro-phenyl)-4-(4-chloro-2-fluoro-phenyl)-4-cyano-pyrrolidine-2-carboxylic acid tert-butyl ester

Produkt 1

HCID 86640421rac-(2R,3S,4R,5S)-3-(3-chloro-2-fluoro-phenyl)-4-(4-chloro-2-fluoro-phenyl)-4-cyano-5-{2,2-dimethyl-4-[2-(2,2,2-trifluoro-acetoxy)-ethoxy]-butyl}-pyrrolidine-2-carboxylic acid trifluoroacetic acidAusbeute 97 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

To a solution of rac-(2R,3S,4R,5S)-5-{4-[2-(tert-butyl-dimethyl-silanyloxy)-ethoxy]-2,2-dimethyl-butyl}-3-(3-chloro-2-fluoro-phenyl)-4-(4-chloro-2-fluoro-phenyl)-4-cyano-pyrrolidine-2-carboxylic acid tert-butyl ester prepared in Example 119b (0.49 g, 0.55 mmol) in dichloromethane (3 mL) at room temperature was added trifluoroacetic acid (3 mL). The reaction mixture was stirred at room temperature for 18 h. The mixture was concentrated under reduced pressure to give rac-(2R,3S,4R,5S)-3-(3-chloro-2-fluoro-phenyl)-4-(4-chloro-2-fluoro-phenyl)-4-cyano-5-{2,2-dimethyl-4-[2-(2,2,2-trifluoro-acetoxy)-ethoxy]-butyl}-pyrrolidine-2-carboxylic acid trifluoroacetic acid as a yellow oil (0.37 g, 97%).

Aufarbeitung

  1. concentrationThe mixture was concentrated under reduced pressure

Quellen und Nachweise

ORD-Eintrag
ord-0c956a819ab047008f5ea79d9525a72b
Quelldatensatz
uspto-grants-2013_01
Patentnummer
US08354444B2

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