Acetic Acid → 7-[2-(2-Formamidothiazol-4-yl)-2-ethoxycarbonylmethoxyiminoacetamido]-3-cephem-4-carboxylic acid

HRID 1650532Notes

Reaction equation

HRID 1650532 reaction equation
[CH:1]([NH:3][C:4]1[S:5][CH:6]=[C:7]([C:9](=[N:35][O:36][CH2:37][C:38]([O:40][CH2:41][CH3:42])=[O:39])[C:10]([NH:12][CH:13]2[C:33](=[O:34])[N:15]3[C:16]([C:20]([O:22]CC4C=CC([N+]([O-])=O)=CC=4)=[O:21])=[CH:17][CH2:18][S:19][C@H:14]23)=[O:11])[N:8]=1)=[O:2].C(O)C.O1CCCC1.C(O)(=O)C>[C].[Pd].O>[CH:1]([NH:3][C:4]1[S:5][CH:6]=[C:7]([C:9](=[N:35][O:36][CH2:37][C:38]([O:40][CH2:41][CH3:42])=[O:39])[C:10]([NH:12][CH:13]2[C:33](=[O:34])[N:15]3[C:16]([C:20]([OH:22])=[O:21])=[CH:17][CH2:18][S:19][C@H:14]23)=[O:11])[N:8]=1)=[O:2]

Participants

7

Reactant 4

HCID 176Acetic AcidHCID 702EthanolHCID 8028TetrahydrofuranHCID 1317124774-Nitrobenzyl 7-[2-(2-formamidothiazol-4-yl)-2-ethoxycarbonylmethoxyiminoacetamido]-3-cephem-4-carboxylate

Product 1

HCID 1317124787-[2-(2-Formamidothiazol-4-yl)-2-ethoxycarbonylmethoxyiminoacetamido]-3-cephem-4-carboxylic acidYield 20.3%

Reagents, catalysts & solvents 2

HCID 178418390HCID 178418390, compoundCatalystHCID 962WaterSolvent

Procedure

4-Nitrobenzyl 7-[2-(2-formamidothiazol-4-yl)-2-ethoxycarbonylmethoxyiminoacetamido]-3-cephem-4-carboxylate (syn isomer, 2.52 g.), 10% palladium carbon (1.3 g.), ethanol (13 ml.), tetrahydrofuran (25 ml.), acetic acid (0.22 ml.) and water (2.2 ml.) were treated in a similar manner to that of Example 15-(2) to give 7-[2-(2-formamidothiazol-4-yl)-2-ethoxycarbonylmethoxyiminoacetamido]-3-cephem-4-carboxylic acid (syn isomer, 0.4 g.).

Sources & evidence

ORD record
ord-10c8ccc826f34bef85a3613de8583aac
Source dataset
uspto-grants-1990_05
Patent number
US04923998

Reaction notes

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