IP Library Granted Patent US 7,405,214
Granted Patent B2
US 7,405,214 · App. 11/095,686 · Granted Jul 29, 2008

Nucleoside derivatives and therapeutic use thereof

Assignee: Rexahn Corporation
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Quick Facts
Patent No.
US 7,405,214
App. No.
11/095,686
Granted
Jul 29, 2008
Kind
B2
Abstract

The present invention relates to nucleoside derivatives represented by general formulas I and II, their synthetic methods and their pharmacologically acceptable salts thereof, and compositions containing such compounds. Methods for treating hyperproliferative disorders by administering the compounds are also included.

Claims (34)

1. A compound of the formula:

wherein:

A is selected from

Y═H or OH and X═H, F, Cl, Br, I, or CH 3 ;

or a pharmaceutically acceptable salt thereof with the proviso that, when A is

X is not CH 3 .

2. The compound of claim 1 having the formula

wherein: Y═H or OH and X═H, F, Cl, Br, I, or CH 3 or a pharmaceutically acceptable salt thereof.

3. A compound of claim 1 , having the formula:

wherein: Y═H or OH and X═H, F, Cl, Br or I or a pharmaceutically acceptable salt thereof.

4. The compound of claim 1 that is:

or a pharmaceutically acceptable salt thereof.

5. The compound according to claim 1 having an IC 50 of not greater than 10 μM with respect to at least one cell line for a tumor selected from tumors of the ovary, tumors of the breast, cervical tumors, tumors of the prostate, tumors of the liver, lung tumors, kidney tumors, colon tumors, pancreatic tumors, brain tumors, stomach tumors and melanoma.

6. The compound according to claim 5 , wherein said cell line is selected from Human OVCAR-3 for tumors of the ovary, MCF-7 or MDA-MB-231 for breast tumors, HeLa for cervical tumors, PC3 or LNCap for tumors of the prostate, HepG2 for tumors of the liver, A549 or NCI-H226 for lung tumors, UMRC2 for kidney tumors, HT-29 or HCT116 colon tumors, PANC-1 for pancreatic tumors, U251 for brain tumors, MKN-45 for stomach tumors and SK-MEL-28 for melanoma.

7. The compound of claim 5 , having an IC 50 of not greater than 1.0 μM.

8. The compound of claim 5 , having an IC 50 of not greater than 0.5 μM.

9. A pharmaceutical composition comprising a therapeutically effective amount of a compound according to claim 1 , or a pharmaceutically acceptable salt thereof, and a pharmaceutically acceptable carrier or diluent.

10. A method of synthesizing a compound of formula:

wherein: Y═H or OH and X═H, F, Cl, Br, I, or CH 3 or a compound of the formula

wherein: Y═H or OH and X═H, F, Cl, Br, or I, comprising at least one step selected from the group:

wherein B is selected from tert-butyldimethyl silyl, tert-butyldiphenyl silyl, and trityl.

11. The method of claim 10 , wherein B is trityl.

12. A method for treating a tumor comprising administering a composition comprising a compound of the formula:

wherein: Y═H or OH and X═H, F, Cl, Br, I, or CH 3 or a compound of the formula

wherein: Y═H or OH and X═H, F, Cl, Br, or I, or a pharmaceutically acceptable salt thereof to a subject in need of such treatment, and thereby treating the tumor.

13. The method of claim 12 , wherein the compound is

wherein: Y═H or OH and X═H, F, Cl, Br, I, or CH 3

wherein: Y═H or OH and X═H, F, Cl, Br, or I, or a pharmaceutically acceptable salt thereof.

14. The method of claim 12 , wherein the compound or salt has the formula:

15. The method of claim 12 , wherein the compound or salt has the formula:

16. The method of claim 12 , wherein the compound is:

or a pharmaceutically acceptable salt thereof.

17. The method of claim 12 , said composition further comprising a pharmaceutically acceptable carrier or diluent.

18. The method of claim 12 , said tumor selected from tumors of the ovary, tumors of the breast, cervical tumors, tumors of the prostate, tumors of the liver, lung tumors, kidney tumors, colon tumors, pancreatic tumors, brain tumors, stomach tumors and melanoma.

Assignments (3)
CHANGE OF NAME Recorded Nov 4, 2021
From: REXAHN PHARMACEUTICALS, INC.
To: OCUPHIRE PHARMA, INC.
Reel/Frame 058032/0161 →
MERGER Recorded May 7, 2008
From: REXAHN CORPORATION
To: REXAHN PHARMACEUTICALS, INC.
Reel/Frame 020940/0901 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 1, 2005
From: LEE, SANG K.
To: REXAHN CORPORATION
Reel/Frame 016445/0956 →
Continuity (2)
Provisional Application 6055814100 · Apr 1, 2004
Related Publication 20050222185A1 · Oct 6, 2005