Phenylacetyl chloride → (3R,4R)-3-({Isopropyl-[4-methoxy-3-(3-methoxy-propoxy)-benzoyl]-amino}-methyl)-4-[(methyl-phenylacetyl-amino)-methyl]-pyrrolidine-1-carboxylic acid tert-butyl ester

HRID 1158352Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1158352
[C:1]([O:5][C:6]([N:8]1[CH2:12][C@@H:11]([CH2:13][NH:14][CH3:15])[C@H:10]([CH2:16][N:17]([CH:34]([CH3:36])[CH3:35])[C:18](=[O:33])[C:19]2[CH:24]=[CH:23][C:22]([O:25][CH3:26])=[C:21]([O:27][CH2:28][CH2:29][CH2:30][O:31][CH3:32])[CH:20]=2)[CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].[C:37]1([CH2:43][C:44](Cl)=[O:45])[CH:42]=[CH:41][CH:40]=[CH:39][CH:38]=1.C(N(CC)CC)C.C([O-])(O)=O.[Na+]>C(Cl)Cl>[C:1]([O:5][C:6]([N:8]1[CH2:12][C@@H:11]([CH2:13][N:14]([CH3:15])[C:44](=[O:45])[CH2:43][C:37]2[CH:42]=[CH:41][CH:40]=[CH:39][CH:38]=2)[C@H:10]([CH2:16][N:17]([CH:34]([CH3:36])[CH3:35])[C:18](=[O:33])[C:19]2[CH:24]=[CH:23][C:22]([O:25][CH3:26])=[C:21]([O:27][CH2:28][CH2:29][CH2:30][O:31][CH3:32])[CH:20]=2)[CH2:9]1)=[O:7])([CH3:3])([CH3:4])[CH3:2]

Komponenten

6

Edukt 4

HCID 7679Phenylacetyl chlorideHCID 8471TriethylamineHCID 516892Sodium BicarbonateHCID 59512501(3R*,4R*)-3-({Isopropyl-[4-methoxy-3-(3-methoxy-propoxy)-benzoyl]-amino}-methyl)-4-methylaminomethyl-pyrrolidine-1-carboxylic acid tert-butyl ester

Produkt 1

HCID 59512485(3R,4R)-3-({Isopropyl-[4-methoxy-3-(3-methoxy-propoxy)-benzoyl]-amino}-methyl)-4-[(methyl-phenylacetyl-amino)-methyl]-pyrrolidine-1-carboxylic acid tert-butyl ester

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel2×

Reaktionsbedingungen

Temperatur
0 °C

Versuchsvorschrift

To a solution of (3R,4R)-3-({isopropyl-[4-methoxy-3-(3-methoxy-propoxy)-benzoyl]-amino}-methyl)-4-methylaminomethyl-pyrrolidine-1-carboxylic acid tert-butyl ester (2 g, 3.35 mmol) in CH2Cl2 (25 mL), phenylacetyl chloride (0.53 mL, 4.02 mmol) and triethylamine (0.56 mL, 4.02 mmol) are added under N2 atmosphere at 0° C. The mixture is stirred 30 min at 0° C., then allowed to reach RT and further stirred for 1 h. The reaction mixture is diluted with CH2Cl2 and poured into an aqueous saturated solution of NaHCO3. The organic layer is separated, and the aqueous one is extracted twice with CH2Cl2. The combined organic extracts are dried over Na2SO4, filtered and concentrated. The crude product is purified by flash chromatography on silica gel (eluent: c-hexane/AcOEt 20:80 to 0:100) to give the title compound. TLC, Rf (CH2Cl2/MeOH 95:5)=0.4. MS (LC-MS): 526 [M-Boc+H]+; tR (HPLC, Macherey-Nagel 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): 5.71 min.

Aufarbeitung

  1. customto reach RT
  2. stirringfurther stirred for 1 h
  3. customThe organic layer is separated
  4. extractionthe aqueous one is extracted twice with CH2Cl2
  5. dry with materialThe combined organic extracts are dried over Na2SO4
  6. filtrationfiltered
  7. concentrationconcentrated
  8. customThe crude product is purified by flash chromatography on silica gel (eluent: c-hexane/AcOEt 20:80 to 0:100)

Quellen und Nachweise

ORD-Eintrag
ord-2818dff2e9f04c91bf8140ae55cd1190
Quelldatensatz
uspto-grants-2010_10
Patentnummer
US07807709B2

Notizen zur Reaktion

Wird geladen…