Lithium Hydroxide → rac-3-[(2S,3S,4S)-2-(3-chloro-2-fluoro-phenyl)-3-(4-chloro-2-fluoro-phenyl)-3-cyano-4-(2,2-dimethyl-propyl)-pyrrolidin-1-yl]-propionic acid

HRID 909097Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 909097
C([O:3][C:4](=[O:35])[CH2:5][CH2:6][N:7]1[CH2:11][C@@H:10]([CH2:12][C:13]([CH3:16])([CH3:15])[CH3:14])[C@@:9]([C:19]2[CH:24]=[CH:23][C:22]([Cl:25])=[CH:21][C:20]=2[F:26])([C:17]#[N:18])[C@H:8]1[C:27]1[CH:32]=[CH:31][CH:30]=[C:29]([Cl:33])[C:28]=1[F:34])C.[Li+].[OH-]>C1COCC1.O>[Cl:33][C:29]1[C:28]([F:34])=[C:27]([C@@H:8]2[C@:9]([C:19]3[CH:24]=[CH:23][C:22]([Cl:25])=[CH:21][C:20]=3[F:26])([C:17]#[N:18])[C@H:10]([CH2:12][C:13]([CH3:15])([CH3:16])[CH3:14])[CH2:11][N:7]2[CH2:6][CH2:5][C:4]([OH:35])=[O:3])[CH:32]=[CH:31][CH:30]=1

Komponenten

5

Edukt 2

HCID 3939Lithium HydroxideHCID 67095542rac-3-[(2S,3S,4S)-2-(3-chloro-2-fluoro-phenyl)-3-(4-chloro-2-fluoro-phenyl)-3-cyano-4-(2,2-dimethyl-propyl)-pyrrolidin-1-yl]-propionic acid ethyl ester

Produkt 1

HCID 51357804rac-3-[(2S,3S,4S)-2-(3-chloro-2-fluoro-phenyl)-3-(4-chloro-2-fluoro-phenyl)-3-cyano-4-(2,2-dimethyl-propyl)-pyrrolidin-1-yl]-propionic acidAusbeute 100 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 962WaterLösungsmittelHCID 8028TetrahydrofuranLösungsmittel

Versuchsvorschrift

To a mixture of rac-3-[(2S,3S,4S)-2-(3-chloro-2-fluoro-phenyl)-3-(4-chloro-2-fluoro-phenyl)-3-cyano-4-(2,2-dimethyl-propyl)-pyrrolidin-1-yl]-propionic acid ethyl ester (12.3 mg, 0.0235 mmol) in THF (2 mL) was added a solution of LiOH (Aldrich, 6.7 mg, 0.16 mmol) in water (1 mL) and the reaction mixture was stirred at rt for 22 hrs. The reaction mixture was partly concentrated and quenched with 1 N HCl (pH 6-7), extracted with EtOAc, washed with water (2×), and saturated NaCl. The organic phase was separated, and dried over Na2SO4. The mixture was then concentrated to give rac-3-[(2S,3S,4S)-2-(3-chloro-2-fluoro-phenyl)-3-(4-chloro-2-fluoro-phenyl)-3-cyano-4-(2,2-dimethyl-propyl)-pyrrolidin-1-yl]-propionic acid (11 mg, 100%). HRMS (ES+) m/z Calcd for C25H26Cl2F2N2O2+H [(M+H)+]: 495.1412; Found: 495.1413.

Aufarbeitung

  1. concentrationThe reaction mixture was partly concentrated
  2. customquenched with 1 N HCl (pH 6-7)
  3. extractionextracted with EtOAc
  4. washwashed with water (2×), and saturated NaCl
  5. customThe organic phase was separated
  6. dry with materialdried over Na2SO4
  7. concentrationThe mixture was then concentrated

Quellen und Nachweise

ORD-Eintrag
ord-5adf8c1227e44547b74c721185b5340c
Quelldatensatz
uspto-grants-2011_09
Patentnummer
US08017607B2

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