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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 894790Generated: October 30, 2026

Hydrochloric Acid → 7-[2-(2-Aminothiazol-4-yl)-2-(2-allylthioethoxyimino)acetamido]-3-cephem-4-carboxylic acid

https://huagongshe.com/reaction/894790

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantTetrahydrofuranHCID 8028—
ReactantHCID 131712328HCID 131712328—
SolventMethanolHCID 887—
Product7-[2-(2-Aminothiazol-4-yl)-2-(2-allylthioethoxyimino)acetamido]-3-cephem-4-carboxylic acidHCID 13171232984.8%

Reaction Steps

7-[2-(2-Formamidothiazol-4-yl)-2-(2-allylthioethoxyimino)acetamido]-3-cephem-4-carboxylic acid (syn isomer, 1.5 g.), conc. hydrochloric acid (1.19 g.), tetrahydrofuran (7.5 g.) and methanol (22.5 ml.) were treated in a similar manner to that of Example 1-(2) to give 7-[2-(2-aminothiazol-4-yl)-2-(2-allylthioethoxyimino)acetamido]-3-cephem-4-carboxylic acid (syn isomer, 1.2 g.), powder.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04284631
Source datasetuspto-grants-1981_08
ORD IDord-b0f5c129efe142bdb49b9de010993bcd
Source noteuspto-grants-1981_08