US 5,627,302 AGranted

Asymmetrically substituted diaminodicarboxylic acid derivatives

AssigneeHafslund Nycomed Pharma Aktiengesellschaft

InventorsJohann Hiebl, Franz Rovenszky

Life of this patent

Estimating the term…

The invention relates to novel asymmetrically substituted diaminodicarboxylic acid derivatives of the formula ##STR1##

Dependent claims

An asymmetrically substituted diaminodicarboxylic acid derivative of the formula ##STR6## wherein B represents methyl or phenyl,

E and F in each case represent an optionally halogenated straight chain, branched or cyclic alkyl radical having 1 to 10 C atoms or ##STR7## where W represents 9-fluorenylmethyl, benzyl which is optionally mono-, poly- or mixed substituted by halogen, --NO.sub.2, alkoxy or --CN or W represents a straight chain or branched alkyl radical having 1 to 4 C atoms,
and n represents an integer from 2 to 10.

Dependencies are inferred from the claim text.

C07D 207/452
With only hydrogen atoms or radicals containing only hydrogen and carbon atoms directly attached to other ring carbon atoms, e.g. maleimide: with…
C07C 271/22
With the nitrogen atoms of the carbamate groups bound to hydrogen atoms or to acyclic carbon atoms: to carbon atoms of hydrocarbon radicals…
C07C 317/18
Having sulfone or sulfoxide groups and singly-bound oxygen atoms bound to the same carbon skeleton: with sulfone or sulfoxide groups bound to…
C07D 209/48
Iso-indoles; Hydrogenated iso-indoles: with oxygen atoms in positions 1 and 3, e.g. phthalimide

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

Loading patent…