Trifluoroacetic acid → HCID 178524523, compound

HRID 1390718Notes

Reaction equation

HRID 1390718 reaction equation
[Na+:1].[Na+].C([O:7][C:8]([CH:10]([C:38]1[S:39][CH:40]=[CH:41][CH:42]=1)[C:11]([NH:13][CH:14]1[C:36](=[O:37])[N:16]2[C:17]([C:33]([O-:35])=[O:34])=[C:18]([CH:21]([S:27][C:28]3[NH:32][N:31]=[N:30][N:29]=3)[CH2:22][S:23]([OH:26])(=[O:25])=[O:24])[CH2:19][S:20][C@H:15]12)=[O:12])=[O:9])(C)(C)C.C([O:47][C:48]([CH:50]([C:78]1[S:79][CH:80]=[CH:81][CH:82]=1)[C:51]([NH:53][CH:54]1[C:76](=[O:77])[N:56]2[C:57]([C:73]([O-:75])=[O:74])=[C:58]([CH:61]([S:67][C:68]3[NH:72][N:71]=[N:70][N:69]=3)[CH2:62][S:63]([OH:66])(=[O:65])=[O:64])[CH2:59][S:60][C@H:55]12)=[O:52])=[O:49])(C)(C)C.FC(F)(F)C(O)=O.COC1C=CC=C(OC)C=1>>[Na+:1].[Na+:1].[Na+:1].[C:8]([CH:10]([C:38]1[S:39][CH:40]=[CH:41][CH:42]=1)[C:11]([NH:13][CH:14]1[C:36](=[O:37])[N:16]2[C:17]([C:33]([O-:35])=[O:34])=[C:18]([CH:21]([S:27][C:28]3[NH:29][N:30]=[N:31][N:32]=3)[CH2:22][S:23]([OH:26])(=[O:25])=[O:24])[CH2:19][S:20][C@H:15]12)=[O:12])([OH:9])=[O:7].[C:48]([CH:50]([C:78]1[S:79][CH:80]=[CH:81][CH:82]=1)[C:51]([NH:53][CH:54]1[C:76](=[O:77])[N:56]2[C:57]([C:73]([O-:75])=[O:74])=[C:58]([CH:61]([S:67][C:68]3[NH:69][N:70]=[N:71][N:72]=3)[CH2:62][S:63]([OH:66])(=[O:65])=[O:64])[CH2:59][S:60][C@H:55]12)=[O:52])([OH:49])=[O:47].[C:8]([CH:10]([C:38]1[S:39][CH:40]=[CH:41][CH:42]=1)[C:11]([NH:13][CH:14]1[C:36](=[O:37])[N:16]2[C:17]([C:33]([O-:35])=[O:34])=[C:18]([CH:21]([S:27][C:28]3[NH:29][N:30]=[N:31][N:32]=3)[CH2:22][S:23]([OH:26])(=[O:25])=[O:24])[CH2:19][S:20][C@H:15]12)=[O:12])([OH:9])=[O:7]

Participants

4

Reactant 3

HCID 6422Trifluoroacetic acidHCID 90251,3-DimethoxybenzeneHCID 178451132HCID 178451132, compound

Product 1

HCID 178524523HCID 178524523, compound

Procedure

7-(α-t-Butoxycarbonyl-2-thienylacetamido)-3-(1-sulfomethyltetrazol-5-ylthiomethyl)-3-cephem-4-carboxylic acid disodium salt (1.0 g.) is stirred in a mixture of 10 ml. of trifluoroacetic acid and 10 ml. of m-dimethoxybenzene at 25° for one hour. The mixture is evaporated to dryness and the residue is triturated with ether. The precipitated product is collected by filtration and dissolved in methanol. A sodium methoxide solution is added until pH 7.0, the mixture is diluted with ether and the product is dissolved in water and lyophilized to give 7-(α-carboxy-2-thienylacetamido)-3-(1-sulfomethyltetrazol-5-ylthiomethyl)-3-cephem-4-carboxylic acid trisodium salt.

Workup

  1. customThe mixture is evaporated to dryness
  2. customthe residue is triturated with ether
  3. filtrationThe precipitated product is collected by filtration
  4. dissolutiondissolved in methanol
  5. additionA sodium methoxide solution is added until pH 7.0
  6. additionthe mixture is diluted with ether
  7. dissolutionthe product is dissolved in water

Sources & evidence

ORD record
ord-a9f079148d234ac49cda2440b64d52cc
Source dataset
uspto-grants-1979_02
Patent number
US04139701

Reaction notes

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