Diisopropylcarbodiimide → Ceramide 1 A

HRID 581628Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 581628
[C:1]([O:20][CH2:21][CH2:22][CH2:23][CH2:24][CH2:25][CH2:26][CH2:27][CH2:28][CH2:29][CH2:30][CH2:31][CH2:32][CH2:33][CH2:34][CH2:35][CH2:36][CH2:37][CH2:38][CH2:39][CH2:40][CH2:41][CH2:42][CH2:43][CH2:44][CH2:45][CH2:46][C:47]([OH:49])=O)(=[O:19])[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH2:8]/[CH:9]=[CH:10]\[CH2:11]/[CH:12]=[CH:13]\[CH2:14][CH2:15][CH2:16][CH2:17][CH3:18].ON1C2C=CC=CC=2N=N1.[OH:60][CH2:61][C@@H:62]([C@@H:64]([C@@H:66]([CH2:68][CH2:69][CH2:70][CH2:71][CH2:72][CH2:73][CH2:74][CH2:75][CH2:76][CH2:77][CH2:78][CH2:79][CH2:80][CH3:81])[OH:67])[OH:65])[NH2:63].C(N=C=NC(C)C)(C)C>C(Cl)(Cl)Cl>[C:1]([O:20][CH2:21][CH2:22][CH2:23][CH2:24][CH2:25][CH2:26][CH2:27][CH2:28][CH2:29][CH2:30][CH2:31][CH2:32][CH2:33][CH2:34][CH2:35][CH2:36][CH2:37][CH2:38][CH2:39][CH2:40][CH2:41][CH2:42][CH2:43][CH2:44][CH2:45][CH2:46][C:47]([NH:63][C@H:62]([C@@H:64]([C@@H:66]([CH2:68][CH2:69][CH2:70][CH2:71][CH2:72][CH2:73][CH2:74][CH2:75][CH2:76][CH2:77][CH2:78][CH2:79][CH2:80][CH3:81])[OH:67])[OH:65])[CH2:61][OH:60])=[O:49])(=[O:19])[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH2:8]/[CH:9]=[CH:10]\[CH2:11]/[CH:12]=[CH:13]\[CH2:14][CH2:15][CH2:16][CH2:17][CH3:18]

Komponenten

6

Edukt 4

HCID 12734DiisopropylcarbodiimideHCID 757711-HydroxybenzotriazoleHCID 122121PhytosphingosineHCID 8675418527-Linoleoyloxyheptacosanoic acid

Produkt 1

HCID 73425489Ceramide 1 AAusbeute 52 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6212ChloroformLösungsmittel

Reaktionsbedingungen

Temperatur
45 °C

Versuchsvorschrift

A mixture of 27-linoleoyloxyheptacosanoic acid (5 g, 7.2 mmoles), chloroform (90 ml), dried 1-hydroxybenzotriazole (3.2 g, 27.3 mmoles), phytosphingosine (3.07 g, 9.7 mmoles) and N,N'-diisopropylcarbodiimide (2.2 ml, 14.1 mmoles) was stirred under nitrogen for 90 minutes at 45° C. and then overnight at room temperature. After washing with 50 ml of a 1N hydrochloric acid solution and brine and filtration the organic layer was concentrated. After addition of hot isopropanol (150 ml) the mixture was filtered while still hot. After cooling down the precipitate formed was filtered off, washed with isopropanol (30 ml), acetone (10 ml) and dried giving 3.7 g of the title compound.

Aufarbeitung

  1. customovernight
  2. customat room temperature
  3. washAfter washing with 50 ml of a 1N hydrochloric acid solution and brine and filtration the organic layer
  4. concentrationwas concentrated
  5. additionAfter addition of hot isopropanol (150 ml) the mixture
  6. filtrationwas filtered while still hot
  7. temperatureAfter cooling down the precipitate
  8. customformed
  9. filtrationwas filtered off
  10. washwashed with isopropanol (30 ml), acetone (10 ml)
  11. customdried

Quellen und Nachweise

ORD-Eintrag
ord-8ffa821861b348d4bf392d76edaf6d58
Quelldatensatz
uspto-grants-1999_07
Patentnummer
US05919960

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