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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1447228Generated: November 2, 2026

7-Amino-3-(1-methyltetrazol-5-ylthiomethyl)-3-cephem-4-carboxylicacid → 7-[2-t-butoxycarbonylmethoxyimino-2-(3-chloro-4-hydroxyphenyl)acetamido]-3-(1-methyl-1H-tetrazol-5-yl)thiomethyl-3-cephem-4-carboxylic acid

https://huagongshe.com/reaction/1447228

Reaction equation

Participants

RoleNameHCIDCharge
Reactant7-Amino-3-(1-methyltetrazol-5-ylthiomethyl)-3-cephem-4-carboxylicacidHCID 13020813—
Reactant2-t-Butoxycarbonylmethoxyimino-2-(3-chloro-4-hydroxyphenyl)acetic acidHCID 136149112—
Product7-[2-t-butoxycarbonylmethoxyimino-2-(3-chloro-4-hydroxyphenyl)acetamido]-3-(1-methyl-1H-tetrazol-5-yl)thiomethyl-3-cephem-4-carboxylic acidHCID 13719592477.3%

Reaction Steps

2-t-Butoxycarbonylmethoxyimino-2-(3-chloro-4-hydroxyphenyl)acetic acid (syn isomer) (1 g.) and 7-amino-3-(1-methyl-1H-tetrazol-5-yl)thiomethyl-3-cephem-4-carboxylic acid (1 g.) were reacted according to similar manners to those of Examples 1 and 2 to give powder of 7-[2-t-butoxycarbonylmethoxyimino-2-(3-chloro-4-hydroxyphenyl)acetamido]-3-(1-methyl-1H-tetrazol-5-yl)thiomethyl-3-cephem-4-carboxylic acid (syn isomer) (1.5 g.).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04316019
Source datasetuspto-grants-1982_02
ORD IDord-38e1d7d0f4fc48c78f09414a236cfc95
Source noteuspto-grants-1982_02