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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 568853Generated: October 30, 2026

Hydrochloric Acid → 7-[2-(2-Amino-5-bromothiazol-4-yl)-2-methoxyiminoacetamido]-3-benzoyloxymethyl-3-cephem-4-carboxylic acid hydrochloride

https://huagongshe.com/reaction/568853

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant7-[2-(2-Formamido-5-bromothiazol-4-yl)-2-methoxyiminoacetamido]-3-benzoyloxymethyl-3-cephem-4-carboxylic acidHCID 131715356—
Product7-[2-(2-Amino-5-bromothiazol-4-yl)-2-methoxyiminoacetamido]-3-benzoyloxymethyl-3-cephem-4-carboxylic acid hydrochlorideHCID 131715357—

Reaction Steps

7-[2-(2-Formamido-5-bromothiazol-4-yl)-2-methoxyiminoacetamido]-3-benzoyloxymethyl-3-cephem-4-carboxylic acid (syn isomer, 0.58 g.) was treated with conc. hydrochloric acid (0.16 ml.) in a similar manner to that of Example 1-(2) to give 7-[2-(2-amino-5-bromothiazol-4-yl)-2-methoxyiminoacetamido]-3-benzoyloxymethyl-3-cephem-4-carboxylic acid hydrochloride (syn isomer, 0.5 g.).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04729991
Source datasetuspto-grants-1988_03
ORD IDord-dff6c81b621440debc8b407f5e60c21c
Source noteuspto-grants-1988_03