US 6,077,952 AGranted

Cephaloporins and homologues

AssigneePfizer Inc.

InventorsJohn Hargreaves Bateson, George Burton, Stephen Christopher Martin Fell

Life of this patent

Estimating the term…

A compound of formula (II) or a salt: ##STR1##

Dependent claims

A compound of formula (II) or a salt thereof:

##STR23## wherein R.sup.1 CO.sub.2 R.sup.3, R.sup.4, X, m and n are as hereinbefore defined with respect to formula (I).

Dependencies are inferred from the claim text.

C07D 501/00
Heterocyclic compounds containing 5-thia-1-azabicyclo [4.2.0] octane ring systems, i.e. compounds containing a
C07D 463/22
With the acylating radicals further substituted by hetero atoms or by carbon atoms having three bonds to hetero atoms with at the most one bond…
Y02P 20/55
Improvements relating to the production of bulk chemicals: design of synthesis routes, e.g. reducing the use of auxiliary or protecting groups
C07D
Heterocyclic compounds

From the US filing history. Foreign family members aren’t listed.

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