Trifluoroacetic acid → (3S*,4S*)-4-({Isopropyl-[4-methoxy-3-(3-methoxy-propoxy)-benzoyl]-amino}-methyl)-pyrrolidine-3-carboxylic acid benzylamide

HRID 1158321Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1158321
C(OC([N:8]1[CH2:12][C@@H:11]([CH2:13][N:14]([CH:31]([CH3:33])[CH3:32])[C:15](=[O:30])[C:16]2[CH:21]=[CH:20][C:19]([O:22][CH3:23])=[C:18]([O:24][CH2:25][CH2:26][CH2:27][O:28][CH3:29])[CH:17]=2)[C@H:10]([C:34](=[O:43])[NH:35][CH2:36][C:37]2[CH:42]=[CH:41][CH:40]=[CH:39][CH:38]=2)[CH2:9]1)=O)(C)(C)C.C(O)(C(F)(F)F)=O.C([O-])(O)=O.[Na+]>C(Cl)Cl>[CH2:36]([NH:35][C:34]([C@H:10]1[C@H:11]([CH2:13][N:14]([CH:31]([CH3:33])[CH3:32])[C:15](=[O:30])[C:16]2[CH:21]=[CH:20][C:19]([O:22][CH3:23])=[C:18]([O:24][CH2:25][CH2:26][CH2:27][O:28][CH3:29])[CH:17]=2)[CH2:12][NH:8][CH2:9]1)=[O:43])[C:37]1[CH:42]=[CH:41][CH:40]=[CH:39][CH:38]=1

Komponenten

5

Edukt 3

HCID 6422Trifluoroacetic acidHCID 516892Sodium BicarbonateHCID 68616154(3S*,4R*)-3-benzylcarbamoyl-4-({isopropyl-[4-methoxy-3-(3-methoxy-propoxy)-benzoyl]-amino}-methyl)-pyrrolidine-1-carboxylic acid tert-butyl ester

Produkt 1

HCID 11851628(3S*,4S*)-4-({Isopropyl-[4-methoxy-3-(3-methoxy-propoxy)-benzoyl]-amino}-methyl)-pyrrolidine-3-carboxylic acid benzylamide

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel

Reaktionsbedingungen

Temperatur
30 °C

Versuchsvorschrift

To a solution of (3S*,4R*)-3-benzylcarbamoyl-4-({isopropyl-[4-methoxy-3-(3-methoxy-propoxy)-benzoyl]-amino}-methyl)-pyrrolidine-1-carboxylic acid tert-butyl ester (61 mg, 0.098 mmol) in 2 mL CH2Cl2, TFA (113 μL, 1.46 mmol) is added. The mixture is stirred at 30° C. for 2 h, then overnight at RT, and poured into a saturated solution of NaHCO3. The layers are separated, and the aqueous one is back-extracted twice with CH2Cl2. The combined organic extracts are dried over Na2SO4, filtered and concentrated. The crude material is purified by flash chromatography on an NH2 Isolute SPE Flash column (eluent: CH2Cl2:MeOH 100:0 to 95:5) to give the title product. TLC, Rf (CH2Cl2/MeOH 9:1)=0.2. MS (LC-MS): 498 [M+H]+; tR (HPLC, Nucleosil C18 column, 10-100% CH3CN/H2O/5 min, 100% CH3CN/3 min, CH3CN and H2O containing 0.1% TFA, flow: 1.5 mL/min): 4.38 min.

Aufarbeitung

  1. customThe layers are separated
  2. extractionthe aqueous one is back-extracted twice with CH2Cl2
  3. dry with materialThe combined organic extracts are dried over Na2SO4
  4. filtrationfiltered
  5. concentrationconcentrated
  6. customThe crude material is purified by flash chromatography on an NH2 Isolute SPE Flash column (eluent: CH2Cl2:MeOH 100:0 to 95:5)

Quellen und Nachweise

ORD-Eintrag
ord-1bb156c016b441e48b8196e641cd9612
Quelldatensatz
uspto-grants-2010_10
Patentnummer
US07807709B2

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