Reaktion #62780

ord-7fa97aacc8b343b488a1eb5df8f9f917

Reaktionsgleichung

O=C(NC1C(=O)N2C(C(=O)OC(c3ccccc3)c3ccccc3)=C(CI)CS(=O)[C@H]12)C(=NOC(F)F)c1csc(NC(c2ccccc2)(c2ccccc2)c2ccccc2)n1
benzhydryl 7-[2-(2-tritylaminothiazol-4-yl)-2-difluoromethoxyiminoacetamido]-3-iodomethyl-3-cephem-4-carboxylate-1-oxide
CN1CCCC1
N-methylpyrrolidine
CC(C)OC(C)C
diisopropyl ether
→
CC(C1=C(C(=O)OC(c2ccccc2)c2ccccc2)N2C(=O)C(NC(=O)C(=NOC(F)F)c3csc(NC(c4ccccc4)(c4ccccc4)c4ccccc4)n3)[C@H]2S(=O)C1)[NH+]1CCCC1.[I-]
benzhydryl 7-[2-(2-tritylaminothiazol-4-yl)-2-difluoromethoxyiminoacetamido]-3-(1-methyl-1-pyrrolidiniomethyl)-3-cephem-4-carboxylate-1-oxide iodide

Edukte

O=C(NC1C(=O)N2C(C(=O)OC(c3ccccc3)c3ccccc3)=C(CI)CS(=O)[C@H]12)C(=NOC(F)F)c1csc(NC(c2ccccc2)(c2ccccc2)c2ccccc2)n1
benzhydryl 7-[2-(2-tritylaminothiazol-4-yl)-2-difluoromethoxyiminoacetamido]-3-iodomethyl-3-cephem-4-carboxylate-1-oxide
CN1CCCC1
N-methylpyrrolidine
CC(C)OC(C)C
diisopropyl ether

Reagenzien

Keine

Lösungsmittel

C1CCOC1
tetrahydrofuran

Reaktionsbedingungen

Detaillierte Bedingungen
See reaction.notes.procedure_details.

Aufarbeitung

  1. 1
    SonstigeThe resultant precipitates
  2. 2
    Filtrationwere collected by filtration
  3. 3
    Waschenwashed with diisopropyl ether
  4. 4
    Sonstigeair-dried

Vorschrift

A solution of benzhydryl 7-[2-(2-tritylaminothiazol-4-yl)-2-difluoromethoxyiminoacetamido]-3-iodomethyl-3-cephem-4-carboxylate-1-oxide (syn isomer) (1.97 g) and N-methylpyrrolidine (204 mg) in tetrahydrofuran (10 ml) was stirred for 40 minutes at 0°-5° C. and then diisopropyl ether was added thereto. The resultant precipitates were collected by filtration, washed with diisopropyl ether and air-dried to give benzhydryl 7-[2-(2-tritylaminothiazol-4-yl)-2-difluoromethoxyiminoacetamido]-3-(1-methyl-1-pyrrolidiniomethyl)-3-cephem-4-carboxylate-1-oxide iodide (syn isomer) (2.12 g).

Quelle

DOI: 10.6084/m9.figshare.5104873.v1Patent: US04761410uspto-grants-1988_08