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Diisopropylethylamine → 5-(15-tert-Butoxycarbonyl-pentadecanoylamino)-isophthalic acid 1-tert-butyl ester 3-(2,5-dioxo-pyrrolidin-1-yl) ester

HRID 562527
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Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 562527
[C:1]([O:5][C:6](=[O:40])[C:7]1[CH:15]=[C:14]([NH:16][C:17](=[O:39])[CH2:18][CH2:19][CH2:20][CH2:21][CH2:22][CH2:23][CH2:24][CH2:25][CH2:26][CH2:27][CH2:28][CH2:29][CH2:30][CH2:31][C:32]([O:34][C:35]([CH3:38])([CH3:37])[CH3:36])=[O:33])[CH:13]=[C:9]([C:10]([OH:12])=[O:11])[CH:8]=1)([CH3:4])([CH3:3])[CH3:2].[B-](F)(F)(F)F.CN(C(O[N:54]1[C:59](=[O:60])[CH2:58][CH2:57][C:55]1=[O:56])=[N+](C)C)C.CCN(C(C)C)C(C)C>C1COCC1>[O:56]=[C:55]1[CH2:57][CH2:58][C:59](=[O:60])[N:54]1[O:11][C:10](=[O:12])[C:9]1[CH:8]=[C:7]([CH:15]=[C:14]([NH:16][C:17](=[O:39])[CH2:18][CH2:19][CH2:20][CH2:21][CH2:22][CH2:23][CH2:24][CH2:25][CH2:26][CH2:27][CH2:28][CH2:29][CH2:30][CH2:31][C:32]([O:34][C:35]([CH3:38])([CH3:37])[CH3:36])=[O:33])[CH:13]=1)[C:6]([O:5][C:1]([CH3:4])([CH3:2])[CH3:3])=[O:40]
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Komponenten

5

Edukt 3

HCID 81531DiisopropylethylamineHCID 98575222-(2,5-Dioxopyrrolidin-1-yl)-1,1,3,3-tetramethylisouronium tetrafluoroborateHCID 667245005-(15-tert-Butoxycarbonyl-pentadecanoylamino)-isophthalic acid mono-tert-butyl ester

Produkt 1

HCID 871256345-(15-tert-Butoxycarbonyl-pentadecanoylamino)-isophthalic acid 1-tert-butyl ester 3-(2,5-dioxo-pyrrolidin-1-yl) ester

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8028TetrahydrofuranLösungsmittel

Versuchsvorschrift

5-(15-tert-Butoxycarbonyl-pentadecanoylamino)-isophthalic acid mono-tert-butyl ester (140 mg, 0.25 mmol) was dissolved in dry THF (3.5 ml). TSTU (95 mg, 0.30 mmol) and DIPEA (70 ul, 0.30 mmol) were added. The mixture was stirred at RT under nitrogen over the week-end. The reaction mixture was almost dry. EtOAc was added and the precipitate was removed by filtration. The filtrate was extracted with 0.1 N HCl (2×), brine (1×), dried (Na2SO4) and concentrated to give the title compound as a syrup containing a trace of an impurity in a quantitative yield (0.165 mg).

Aufarbeitung

  1. customThe reaction mixture was almost dry
  2. additionEtOAc was added
  3. customthe precipitate was removed by filtration
  4. extractionThe filtrate was extracted with 0.1 N HCl (2×), brine (1×)
  5. dry with materialdried (Na2SO4)
  6. concentrationconcentrated

Quellen und Nachweise

ORD-Eintrag
ord-3b4fb94b594942eb8240f9aadd29c413
Quelldatensatz
uspto-grants-2011_11
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08067362B2

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