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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 126900Generated: October 30, 2026

Sodium Carbonate → 7beta-[2-(2-Amino-5-chloro-4-thiazolyl)-2-methoxyiminoacetamido]-3-cephem-4-carboxylic acid

https://huagongshe.com/reaction/126900

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium CarbonateHCID 10340—
ReactantO-Methylhydroxylamine hydrochlorideHCID 521874—
Reactant7beta-[2-(2-Amino-5-chloro-4-thiazolyl)glyoxylylamino]-3-cephem-4-carboxylic acidHCID 131712103—
SolventMethanolHCID 887—
Product7beta-[2-(2-Amino-5-chloro-4-thiazolyl)-2-methoxyiminoacetamido]-3-cephem-4-carboxylic acidHCID 131712102—

Reaction Steps

In a similar procedure to that of Example 2-1, 7β-[2-(2-amino-5-chloro-4-thiazolyl)glyoxylylamino]-3-cephem-4-carboxylic acid (276 mg) is treated with methoxyamine hydrochloride (58 mg) in methanol (5 ml) in the presence of sodium carbonate (74 mg) to afford 7β-[2-(2-amino-5-chloro-4-thiazolyl)-2-methoxyiminoacetamido]-3-cephem-4-carboxylic acid. Similarly prepared are compounds of Table 1.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04254119
Source datasetuspto-grants-1981_03
ORD IDord-e325f3f41ac94083878ccdf7cde7b062
Source noteuspto-grants-1981_03