Process for the preparation of 2-(primary/secondary amino)hydrocarbyl)-carbamoyl-7-oxo-2,6-diaza-bicyclo [3.2.0.]heptane-6-sulfonic acid derivatives
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United States of America Patent
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Issued Date -
Dec 2, 2010
app pub date -
Dec 4, 2008
filing date -
Dec 4, 2007
priority date (Note) -
Abandoned
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Abstract
; R1; R2; R3; x; y; z; and (—), at each occurrence, have the same meaning as in formula (III); which compound is then (B) deprotected by reaction with formic acid or a mixture of formic acid or acetic acid with hydrochloric acid or hydrobromic acid, to give the compound of formula (I) as well as the compounds of the aforementioned formula (IV).
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