Triethylamine → sodium (6R,7R)-7-[[(2Z)-2-(2-amino-1,3-thiazol-4-yl)-2-methoxyiminoacetyl]amino]-3-[(2-methyl-5,6-dioxo-1H-1,2,4-triazin-3-yl)sulfanylmethyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate

HRID 1391824Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1391824
[CH3:1][N:2]1[N:8]=[C:7]([OH:9])[C:5](=[O:6])[N:4]=[C:3]1[S:10][CH2:11][C:12]1[CH2:33][S:32][C@@H:15]2[C@H:16]([NH:19][C:20](/[C:22](/[C:26]3[N:30]=[C:29]([NH2:31])[S:28][CH:27]=3)=[N:23]\[O:24][CH3:25])=[O:21])[C:17](=[O:18])[N:14]2[C:13]=1[C:34]([OH:36])=[O:35].C(N(CC)CC)C.C([O-])(=O)C.[Na+:48]>CC(C)=O>[CH3:1][N:2]1[N:8]=[C:7]([OH:9])[C:5](=[O:6])[N:4]=[C:3]1[S:10][CH2:11][C:12]1[CH2:33][S:32][C@@H:15]2[C@H:16]([NH:19][C:20](/[C:22](/[C:26]3[N:30]=[C:29]([NH2:31])[S:28][CH:27]=3)=[N:23]\[O:24][CH3:25])=[O:21])[C:17](=[O:18])[N:14]2[C:13]=1[C:34]([O-:36])=[O:35].[Na+:48]

Komponenten

5

Edukt 3

HCID 8471TriethylamineHCID 517045Sodium AcetateHCID 178502822HCID 178502822, Verbindung

Produkt 1

HCID 178502823sodium (6R,7R)-7-[[(2Z)-2-(2-amino-1,3-thiazol-4-yl)-2-methoxyiminoacetyl]amino]-3-[(2-methyl-5,6-dioxo-1H-1,2,4-triazin-3-yl)sulfanylmethyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 180AcetoneLösungsmittel2×

Versuchsvorschrift

The ceftriaxone acid was dissolved in aqueous acetone using triethylamine. To the clear solution obtained, sodium acetate (13 g) was added and charcoalized. To the filtrate, acetone (720 mL) was added over 1-2 h and filtered to get ceftriaxone sodium. The wet material of ceftriaxone sodium thus obtained was dissolved in water (120 mL) followed by addition of acetone (222 mL). The solution was cooled to −5 to −15° C. and the impurity separated as a sticky mass. The clear solution was separated and the temp raised to 18-22 C. Acetone (624 mL) was added under stirring over 1 h, filtered and washed with acetone. Drying under vacuum afforded pure ceftriaxone sodium (19.2 g).

Aufarbeitung

  1. customTo the clear solution obtained
  2. filtrationfiltered

Quellen und Nachweise

ORD-Eintrag
ord-63606f3a1b684ddaab8523be652b525a
Quelldatensatz
uspto-grants-2008_03
Patentnummer
US07339055B2

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