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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2049175Generated: November 1, 2026

3-Acetoxymethyl 7-[2-(2-amino-4-thiazolyl)-2-methoxyimino-acetamido]-ceph-3-eme-4-carboxylic acid → 3-Acetoxymethyl-7-[2-(2-amino-4-thiazolyl)-2-vinyloxyimino-acetamido]-ceph-3-eme-4-carboxylic acid

https://huagongshe.com/reaction/2049175

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-Acetoxymethyl 7-[2-(2-amino-4-thiazolyl)-2-methoxyimino-acetamido]-ceph-3-eme-4-carboxylic acidHCID 131711503—
Reactant3-Acetoxymethyl-7-[2-(2-amino-4-thiazolyl)-2-(1-methylethoxyimino)-acetamido]-ceph-3-eme-4-carboxylic acidHCID 131711507—
ReactantSodium 3-acetoxymethyl-7-[2-(2-amino-4-thiazolyl)-2-methoxyimino-acetamido]-ceph-3-eme-4-carboxylateHCID 131711736—
Product3-Acetoxymethyl-7-[2-(2-amino-4-thiazolyl)-2-vinyloxyimino-acetamido]-ceph-3-eme-4-carboxylic acidHCID 131711734—
Product3-Acetoxymethyl-7-[2-(2-amino-4-thiazolyl)-2-hydroxyimino-acetamido]-ceph-3-eme-4-carboxylic acidHCID 131711735—

Reaction Steps

Gelules were prepared with 250 mg of 3-acetoxymethyl-7-[2-(2-amino-4-thiazolyl)-2-methoxyimino-acetamido]-ceph-3-eme-4-carboxylic acid or sodium 3-acetoxymethyl-7-[2-(2-amino-4-thiazolyl)-2-methoxyimino-acetamido]-ceph-3-eme-4-carboxylate or 3-acetoxymethyl-7-[2-(2-amino-4-thiazolyl)-2-(1-methylethoxylimino)-acetamido]-ceph-3-eme-4-carboxylic acid or the syn isomer of 7-[2-(2-amino-4-thiazolyl)-2-hydroxyimino-acetamido]-3-acetoxymethyl-ceph-3-eme-4-carboxylic acid or the syn isomer of 3-acetoxymethyl-7-[2-(2-amino-4-thiazolyl)-2-vinyloxyimino-acetamido]-ceph-3-eme-4-carboxylic acid and sufficient excipient to obtain a final weight of 400 mg.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04196205
Source datasetuspto-grants-1980_04
ORD IDord-d1d87e245b824776afff77e8ce2ffd55
Source noteuspto-grants-1980_04