IP Library Granted Patent US 8,877,945
Granted Patent B2
US 8,877,945 · App. 13/319,377 · Granted Nov 4, 2014

Redox drug derivatives

Inventors: Derek Lindsay (Liverpool, GB); Peter Jackson (Liverpool, GB)
Assignee: Redx Pharma Limited
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Quick Facts
Patent No.
US 8,877,945
App. No.
13/319,377
Granted
Nov 4, 2014
Kind
B2
Abstract

The present invention provides redox drug derivatives. In particular, 9-fluoro-2,3-dihydro-3-methyl-10-(4-methyl-1-piperazinyl)-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid, 1-ethyl-6-fluoro-1,4-dihydro-7-(4-methyl-1-piperazinyl)-4-oxo-3-quinolinecarboxylic acid, (3R,4R,5S)-4-(acetylamino)-5-amino-3-(1-ethylpropoxy)-1-cyclohexene-1-carboxylic acid ethyl ester, (3S)-3-(aminomethyl)-5-methylhexanoic acid, (3S)-1-[2-(2,3-dihydro-5-benzofuranyl)ethyl]-α-α-diphenyl-3-pyrrolidineacetamide, (1S,2S,3S,4R)-3-[(1S)-1-acetamido-2-ethyl-butyl]-4-(diaminomethylideneamino)-2-hydroxy-cyclopentane-1-carboxylic acid and (2R,3R,4S)-4-[(diaminomethylidene)amino]-3-acetamido-2-[(1R,2R)-1,2,3-trihydroxypropyl]-3,4-dihydro-2H-pyran-6-carboxylic acid redox derivatives.

Claims (17)

1. A compound of formula (III):

wherein:

each R 23 is independently selected from the group consisting of: —H, —F and C 1-3 alkyl;

R 21 is selected from the group consisting of: —NRR′,

and

R 22 is selected from the group consisting of: —CHO, —CH═NOR′″ and

wherein:

—Y— is selected from the group consisting of: ═N—, —O— and —S—;

—Y′— is selected from the group consisting of: —O— and —S—;

(i) each R and R′ is independently selected from the group consisting of: —H and C 1-4 alkyl; or (ii) —NRR′ represents a ring independently selected from the group consisting of: pyrrole, pyrroline, pyrrolidine, piperazine, piperidine, morpholine, azepane, azepine, diazepine, thiazepine and azocane, or (iii)

 represents a ring independently selected from the group consisting of: dioxolane, dioxane, dithiolane and dithiane; and

R′″ is selected from the group consisting of: H, C 1-4 alkyl and —(CR″″R″″) n -aryl; wherein R″″ is selected from the group consisting of: H and aryl and wherein n is from 1 to 4.

2. The compound of claim 1 , wherein R 21 is —NH 2 and each R 23 is H.

3. The compound of claim 1 , wherein R 22 is —CHO, —CH═NOH or

4. The compound of claim 2 , wherein R 22 is —CHO, —CH═NOH or

5. A compound of formula (III):

wherein the compound is

Assignments (2)
CHANGE OF NAME Recorded Apr 17, 2015
From: REDX PHARMA LIMITED
To: REDX PHARMA PLC
Reel/Frame 035455/0507 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 29, 2011
From: LINDSAY, DEREK; JACKSON, PETER
To: REDX PHARMA LTD.
Reel/Frame 027295/0751 →
Priority Claims (2)
GB 0908338.7 · May 15, 2009 · national
GB 1006112.5 · Apr 13, 2010 · national
Continuity (1)
Related Publication 20120077974A1 · Mar 29, 2012