Salicylaldehyde → HCID 136460587, Verbindung

HRID 905419Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 905419
[NH2:1][CH:2]1[C:14](=[O:15])[N:4]2[C:5]([C:11]([OH:13])=[O:12])=[C:6]([CH2:9][OH:10])[CH2:7][S:8][C@H:3]12.[CH:16]1([NH:22][CH:23]2[CH2:28][CH2:27][CH2:26][CH2:25][CH2:24]2)[CH2:21][CH2:20][CH2:19][CH2:18][CH2:17]1.[CH:29](=O)[C:30]1[C:31](=[CH:33][CH:34]=[CH:35][CH:36]=1)[OH:32]>O>[CH:23]1([NH:22][CH:16]2[CH2:17][CH2:18][CH2:19][CH2:20][CH2:21]2)[CH2:24][CH2:25][CH2:26][CH2:27][CH2:28]1.[CH:29](=[N:1][CH:2]1[C:14](=[O:15])[N:4]2[C:5]([C:11]([OH:13])=[O:12])=[C:6]([CH2:9][OH:10])[CH2:7][S:8][C@H:3]12)[C:30]1[C:31](=[CH:33][CH:34]=[CH:35][CH:36]=1)[OH:32]

Komponenten

5

Edukt 3

HCID 6998SalicylaldehydeHCID 7582DicyclohexylamineHCID 129054807-Amino-3-hydroxymethyl-3-cephem-4-carboxylic Acid

Produkt 1

HCID 136460587HCID 136460587, VerbindungAusbeute 87,4 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 962WaterLösungsmittel

Versuchsvorschrift

7-Amino-3-hydroxymethyl-3-cephem-4-carboxylic acid (9.21 g) was suspended in water (200 ml) and neutralized to pH 7.5 with dicyclohexylamine (7 g). To the resultant solution was added dropwise salicylaldehyde (5.42 g). After stirring at ambient temperature for 2 hours, the precipitates were collected by filtration and dried to give 7-salicylideneamino-3-hydroxymethyl-3-cephem-4-carboxylic acid dicyclohexylamine salt (17.4 g).

Aufarbeitung

  1. filtrationthe precipitates were collected by filtration
  2. customdried

Quellen und Nachweise

ORD-Eintrag
ord-9ff1738430c04ace9c334705a5afa0b0
Quelldatensatz
uspto-grants-1983_12
Patentnummer
US04423213

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