Water → HCID 178481648, compound

HRID 34498Notes

Reaction equation

HRID 34498 reaction equation
[C:1]([NH:20][C:21]1[S:22][CH:23]=[C:24]([C:26](=[N:57][O:58][CH:59]([F:61])[F:60])[C:27]([NH:29][CH:30]2[C:55](=[O:56])[N:32]3[C:33]([C:39]([O:41][CH:42]([C:49]4[CH:54]=[CH:53][CH:52]=[CH:51][CH:50]=4)[C:43]4[CH:48]=[CH:47][CH:46]=[CH:45][CH:44]=4)=[O:40])=[C:34]([CH2:37]Cl)[CH2:35][S:36][C@H:31]23)=[O:28])[N:25]=1)([C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1)([C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[I-].[Na+].[SH:64][C:65]1[N:70]([CH3:71])[C:69](=[O:72])[C:68]([OH:73])=[N:67][N:66]=1.O>CN(C)C=O>[C:1]([NH:20][C:21]1[S:22][CH:23]=[C:24]([C:26](=[N:57][O:58][CH:59]([F:61])[F:60])[C:27]([NH:29][CH:30]2[C:55](=[O:56])[N:32]3[C:33]([C:39]([O:41][CH:42]([C:49]4[CH:54]=[CH:53][CH:52]=[CH:51][CH:50]=4)[C:43]4[CH:48]=[CH:47][CH:46]=[CH:45][CH:44]=4)=[O:40])=[C:34]([CH2:37][S:64][C:65]4[N:70]([CH3:71])[C:69](=[O:72])[C:68]([OH:73])=[N:67][N:66]=4)[CH2:35][S:36][C@H:31]23)=[O:28])[N:25]=1)([C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1)([C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Participants

6

Reactant 4

HCID 962WaterHCID 5238Sodium IodideHCID 131715668Benzhydryl 7-[2-(2-tritylaminothiazol-4-yl)-2-difluoromethoxyiminoacetamido]-3-chloromethyl-3-cephem-4-carboxylateHCID 178481710HCID 178481710, compound

Product 1

HCID 178481648HCID 178481648, compoundYield 73.1%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

To a mixture of benzhydryl 7-[2-(2-tritylaminothiazol-4-yl)-2-difluoromethoxyiminoacetamido]-3-chloromethyl-3-cephem-4-carboxylate (syn isomer) (1.5 g) and sodium iodide (769 mg) in N,N-dimethylformamide was added 3-mercapto-4-methyl-5-oxo-6-hydroxy-4,5-dihydro-1,2,4-triazine (816 mg). After being stirred for 45 minutes at room temperature, the reaction mixture was poured into water. The resulting precipitates were collected by filtration and dissolved in ethyl acetate. The solution was washed with water, an aqueous solution of sodium bicarbonate and a saturated aqueous solution of sodium chloride successively, dried and evaporated under reduced pressure. The residue was triturated in diisopropyl ether and collected by filtration to give benzhydryl 7-[2-(2-tritylaminothiazol-4-yl)-2-difluoromethoxyiminoacetamido]-3-(4-methyl-5-oxo-6-hydroxy-4,5-dihydro-1,2,4-triazin-3-yl)thiomethyl-3-cephem-4-carboxylate (syn isomer) (1.25 g).

Workup

  1. customThe resulting precipitates
  2. filtrationwere collected by filtration
  3. dissolutiondissolved in ethyl acetate
  4. washThe solution was washed with water
  5. dry with materialan aqueous solution of sodium bicarbonate and a saturated aqueous solution of sodium chloride successively, dried
  6. customevaporated under reduced pressure
  7. customThe residue was triturated in diisopropyl ether
  8. filtrationcollected by filtration

Sources & evidence

ORD record
ord-9cca642e23af4c42b28841ddb605c92d
Source dataset
uspto-grants-1988_08
Patent number
US04761410

Reaction notes

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