Methanol → 7-[2-(2-Aminothiazol-4-yl)-2-hydroxyiminoacetamido]-3-chloro-3-cephem-4-carboxylic acid

HRID 1905302Notes

Reaction equation

HRID 1905302 reaction equation
[NH2:1][C:2]1[S:3][CH:4]=[C:5]([C:7](=[N:34][OH:35])[C:8]([NH:10][CH:11]2[C:32](=[O:33])[N:13]3[C:14]([C:19]([O:21]CC4C=CC([N+]([O-])=O)=CC=4)=[O:20])=[C:15]([Cl:18])[CH2:16][S:17][C@H:12]23)=[O:9])[N:6]=1.CO.O>[C].[Pd].O1CCCC1>[NH2:1][C:2]1[S:3][CH:4]=[C:5]([C:7](=[N:34][OH:35])[C:8]([NH:10][CH:11]2[C:32](=[O:33])[N:13]3[C:14]([C:19]([OH:21])=[O:20])=[C:15]([Cl:18])[CH2:16][S:17][C@H:12]23)=[O:9])[N:6]=1

Participants

6

Reactant 3

HCID 887MethanolHCID 962WaterHCID 1317125054-Nitrobenzyl 7-[2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetamido]-3-chloro-3-cephem-4-carboxylate

Product 1

HCID 1317125067-[2-(2-Aminothiazol-4-yl)-2-hydroxyiminoacetamido]-3-chloro-3-cephem-4-carboxylic acidYield 34.2%

Reagents, catalysts & solvents 2

HCID 178418390HCID 178418390, compoundCatalystHCID 8028TetrahydrofuranSolvent

Procedure

4-Nitrobenzyl 7-[2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetamido]-3-chloro-3-cephem-4-carboxylate (syn isomer, 5.0 g.), 10% palladium carbon (3.0 g.), methanol (100 ml.), water (10 ml.) and tetrahydrofuran (150 ml.) were treated in a similar manner to that of Example 37-(2), to give 7-[2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetamido]-3-chloro-3-cephem-4-carboxylic acid (syn isomer, 1.28 g.).

Sources & evidence

ORD record
ord-2bb476f74dc746fdb827c39592d4aa07
Source dataset
uspto-grants-1989_06
Patent number
US04841062

Reaction notes

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