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Diisopropylethylamine → 3-(4-Benzyloxy-phenyl)-2-[4-methyl-2-(piperidine-1-sulfonylamino)-pentanoylamino]-propionic acid tert-butyl ester

HRID 2230321
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Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 2230321
[C:1]([O:5][C:6](=[O:32])[CH:7]([NH:23][C:24](=[O:31])[CH:25]([NH2:30])[CH2:26][CH:27]([CH3:29])[CH3:28])[CH2:8][C:9]1[CH:14]=[CH:13][C:12]([O:15][CH2:16][C:17]2[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=2)=[CH:11][CH:10]=1)([CH3:4])([CH3:3])[CH3:2].[N:33]1([S:39](Cl)(=[O:41])=[O:40])[CH2:38][CH2:37][CH2:36][CH2:35][CH2:34]1.C(N(CC)C(C)C)(C)C>CN(C1C=CN=CC=1)C.CN(C=O)C.C(OCC)(=O)C.C(Cl)(Cl)Cl.CCCCCC>[C:1]([O:5][C:6](=[O:32])[CH:7]([NH:23][C:24](=[O:31])[CH:25]([NH:30][S:39]([N:33]1[CH2:38][CH2:37][CH2:36][CH2:35][CH2:34]1)(=[O:41])=[O:40])[CH2:26][CH:27]([CH3:28])[CH3:29])[CH2:8][C:9]1[CH:14]=[CH:13][C:12]([O:15][CH2:16][C:17]2[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=2)=[CH:11][CH:10]=1)([CH3:3])([CH3:2])[CH3:4]
KomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

9

Edukt 3

HCID 81531DiisopropylethylamineHCID 11298344Piperidine-1-sulfonyl chlorideHCID 540817292-(2-Amino-4-methyl-pentanoylamino)-3-(4-benzyloxy-phenyl)-propionic acid tert-butyl ester

Produkt 1

HCID 700590143-(4-Benzyloxy-phenyl)-2-[4-methyl-2-(piperidine-1-sulfonylamino)-pentanoylamino]-propionic acid tert-butyl ester

Reagenzien, Katalysatoren, Lösungsmittel 5

HCID 14284
4-(Dimethylamino)pyridine
Katalysator
HCID 6212ChloroformLösungsmittel
HCID 6228DimethylformamideLösungsmittel
HCID 8058HexaneLösungsmittel
HCID 8857Ethyl AcetateLösungsmittel

Versuchsvorschrift

A solution of the product from Example AI ([S-(R*,R*)]-2-(2-amino-4-methyl-pentanoylamino)-3-(4-benzyloxy-phenyl)-propionic acid tert-butyl ester) (220 mg, 0.50 mmol), piperidinesulfonyl chloride (102 mg, 0.55 mmol, prepared by the method of Von Geldern, et al., J. Med. Chem., 1996;39:968-981), N,N-diisopropylethylamine (129 mg, 1.00 mmol), and DMAP (20 mg) in DMF (1 mL) is stirred at room temperature for 48 hours, diluted with ethyl acetate, and washed with water, 1N HCl, saturated NaHCO3 solution and brine, dried over anhydrous sodium sulfate, and concentrated. The remaining oily residue was purified via preparative TLC (50% EtOAc/hexane) giving a clear oil which was dissolved in 0.5 mL CHCl3, and diluted with 5 mL hexane. After 3 days at 3° C., the crystals that had formed were collected, and weighed 34 mg (12%), mp=125-126° C.

Aufarbeitung

  1. washwashed with water, 1N HCl, saturated NaHCO3 solution and brine
  2. dry with materialdried over anhydrous sodium sulfate
  3. concentrationconcentrated
  4. customThe remaining oily residue was purified via preparative TLC (50% EtOAc/hexane)
  5. customgiving a clear oil which
  6. customthe crystals that had formed
  7. customwere collected

Quellen und Nachweise

ORD-Eintrag
ord-832e5db892434d47ab16a48717787b2f
Quelldatensatz
uspto-grants-2002_07
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US06423689B1

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