Triethylamine → 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

HRID 1807001Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1807001
[C:1]([O:5][C:6](=[O:27])[CH2:7]/[N:8]=[CH:9]/[CH2:10][C:11]([CH3:26])([CH3:25])[CH2:12][CH2:13][O:14][CH2:15][CH2:16][O:17][Si:18]([C:21]([CH3:24])([CH3:23])[CH3:22])([CH3:20])[CH3:19])([CH3:4])([CH3:3])[CH3:2].[Cl:28][C:29]1[C:30]([F:47])=[C:31](/[CH:35]=[C:36](/[C:39]2[CH:44]=[CH:43][C:42]([Cl:45])=[CH:41][C:40]=2[F:46])\[C:37]#[N:38])[CH:32]=[CH:33][CH:34]=1.C(N(CC)CC)C.C1CCN2C(=NCCC2)CC1>ClCCl.C(O)(C)(C)C>[C:1]([O:5][C:6]([CH:7]1[CH:35]([C:31]2[CH:32]=[CH:33][CH:34]=[C:29]([Cl:28])[C:30]=2[F:47])[C:36]([C:39]2[CH:44]=[CH:43][C:42]([Cl:45])=[CH:41][C:40]=2[F:46])([C:37]#[N:38])[CH:9]([CH2:10][C:11]([CH3:26])([CH3:25])[CH2:12][CH2:13][O:14][CH2:15][CH2:16][O:17][Si:18]([C:21]([CH3:24])([CH3:23])[CH3:22])([CH3:20])[CH3:19])[NH:8]1)=[O:27])([CH3:4])([CH3:2])[CH3:3]

Komponenten

7

Edukt 4

HCID 8471TriethylamineHCID 811841,8-Diazabicyclo(5.4.0)undec-7-eneHCID 59249629(Z)-3-(3-Chloro-2-fluoro-phenyl)-2-(4-chloro-2-fluoro-phenyl)-acrylonitrileHCID 178446420HCID 178446420, Verbindung

Produkt 1

HCID 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 esterAusbeute 68,8 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 6344DichloromethaneLösungsmittelHCID 6386tert-ButanolLösungsmittel

Versuchsvorschrift

In a manner similar to the method described in Example 100b, [5-[2-(tert-butyl-dimethyl-silanyloxy)-ethoxy]-3,3-dimethyl-pent-(E)-ylideneamino]-acetic acid tert-butyl ester prepared in Example 119a (0.4 g, 1 mmol) was reacted with (Z)-3-(3-chloro-2-fluoro-phenyl)-2-(4-chloro-2-fluoro-phenyl)-acrylonitrile (0.3 g, 1 mmol) prepared in Example 52a, AgF (0.2 g, 1.5 mmol), and triethylamine (0.3 mL, 2.4 mmol) in dichloromethane (50 mL) at room temperature for 18 h, followed by the reaction with DBU (1 ml) in tert-butanol (2 mL) at 100° C. for 2 h to give 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 as a white gum (0.49 g, 60%).

Quellen und Nachweise

ORD-Eintrag
ord-5f42b669db4e44a8b0ea36eb70049de2
Quelldatensatz
uspto-grants-2013_01
Patentnummer
US08354444B2

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