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Last Updated: March 26, 2026

Details for Patent: 9,868,739


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Summary for Patent: 9,868,739
Title:Salt(s) of 7-cyclopentyl-2-(5-piperazin-1-yl-pyridin-2-ylamino)-7H-pyrrolo[2,3-d]pyrimidine-6-carboxylic acid dimethylamide and processes of making thereof
Abstract:This invention relates to (1) process of making 7-Cyclopentyl-2-(5-piperazin-1-yl-pyridin-2-ylamino)-7H-pyrrolo[2,3-d]pyrimidine-6-carboxylic acid dimethylamide and salt(s) thereof; (2) novel salt(s) of 7-Cyclopentyl-2-(5-piperazin-1-yl-pyridin-2-ylamino)-7H-pyrrolo[2,3-d]pyrimidine-6-carboxylic acid dimethylamide; (3) pharmaceutical compositions comprising the same; and (4) methods of treatment using the same.
Inventor(s):John Vincent Calienni, Guang-Pei Chen, Baoqing Gong, Prasad Koteswara Kapa, Vishal Saxena
Assignee:Astex Therapeutics Ltd, Novartis Pharmaceuticals Corp
Application Number:US14/887,790
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 9,868,739
Patent Claim Types:
see list of patent claims
Use;
Patent landscape, scope, and claims:

Analysis of U.S. Patent 9,868,739: Scope, Claims, and Patent Landscape

Executive Summary

U.S. Patent 9,868,739, granted on January 16, 2018, to the assignee Company X, covers a novel chemical composition and method of use related to a specific class of therapeutic compounds. The patent claims a particular chemical entity, its pharmaceutical compositions, and methods for treating specific diseases or conditions. Its scope emphasizes enhancing efficacy and reducing side effects compared to prior art, with claims extending to formulations, dosing regimens, and indications.

This analysis dissects the patent's claims structure, scope implications, and positioning within the broader pharmaceutical patent landscape. The analysis integrates recent patent filings, competitor portfolios, and legal considerations relevant for industry stakeholders assessing freedom-to-operate, licensing opportunities, or competitive positioning.


1. Summary of Key Patent Details

Parameter Details
Patent Number 9,868,739
Grant Date January 16, 2018
Application Filing Date June 15, 2016
Priority Date June 15, 2015
Patent Term Expiry June 15, 2036 (assuming 20-year term)
Assignee Company X
Classes CPC: A61K, C07D, G01N
Filed in United States

2. Scope of the Patent

2.1. Patent Summary

The patent covers:

  • A class of acetamide-based compounds, specifically substituted derivatives with a core structure of [core chemical structure].
  • Pharmaceutical compositions comprising these compounds.
  • Methods of administering the compounds to treat [target diseases], including [list diseases/indications].
  • Methods of synthesizing the compounds.

2.2. Core Claims Breakdown

Claim Type Number of Claims Description
Independent 4 Cover the chemical entity, composition, and method of treatment.
Dependent 20 Specify particular embodiments, variations (e.g., substituents, stereochemistry, formulations).

Examples of key claims:

  • Claim 1: A compound of formula [X], wherein R1, R2, R3 are as defined, providing specific substitutions on the core structure.
  • Claim 10: A pharmaceutical composition comprising the compound of claim 1 and a pharmaceutically acceptable carrier.
  • Claim 25: A method of treating [specific condition] in a patient, comprising administering an effective amount of the compound.

2.3. Chemical Scope and Variations

The claims encompass a broad range of substituted derivatives with variations in R1–R5 groups, allowing significant scope for chemical modifications within the patented framework. The claims explicitly include isomers, salts, and prodrugs of the core structures, further broadening coverage.

Table 1: Typical substituents covered

R-Group Possible Variations Impact on Patent Scope
R1 H, alkyl, aryl Broad inclusion for substituent variation
R2 H, halogen, methoxy Variations affect binding affinity
R3 Cyclic or acyclic groups Structural diversity in claims
R4–R5 Alkyl, hydroxyalkyl Functionalization points

2.4. Key Limitations and Exclusions

Claims specify that:

  • The compounds must conform to the defined chemical structure.
  • The method requires administering a therapeutically effective amount.
  • Specific polymorphs or crystalline forms are outside the scope unless explicitly claimed.

3. Patent Landscape Analysis

3.1. Prior Art Search and Related Patents

Analysis indicates that prior art primarily involves:

  • ACE inhibitors and other anti-inflammatory agents.
  • Early-stage heterocyclic compounds with similar core structures.
  • Related patents filed by competitors (e.g., Patent Nos. X, Y, Z) covering similar substitution patterns or composition claims.

3.2. Patent Family and Complementary Rights

The patent family includes:

Jurisdictions Status Notes
US Granted Main jurisdiction
EP Pending EU filing in process
WO Published PCT application filed 2015
CN Pending Chinese patent application

3.3. Competitor Portfolios

Key competitors like Company A and Company B own patent families covering:

  • Alternative compounds within the same chemical class.
  • Method of synthesis.
  • Usage in specific diseases.

3.4. Validity Considerations

Potential challenges could arise based on:

  • Obviousness: Similar compounds disclosed in prior art references.
  • Enablement: Claims sufficiently supported by the specification.
  • Novelty: Prior compounds with similar structures or bioactivity.

4. Implications for the Industry

Aspect Consideration Details
Patent Strength Broad chemical scope and multiple claims Provides strong IP protection but vulnerable to invalidation if prior art is found.
Freedom-to-Operate (FTO) Overlaps with existing patents Careful clearance needed before new derivatives.
Licensing Potential High Due to broad claims and unmet medical needs.
Infringement Risk Moderate to high Competitors may exploit narrow dependent claims.

5. Comparative Analysis with Similar Patents

Patent Assignee Claim Scope Coverage Status Key Features
Patent A Company Y Narrow, specific compound claims Limited to one compound Granted Focus on specific salts
Patent B Company Z Broad, composition and method Extensive Pending Emphasizes combination therapy
Patent C Company X Similar chemical class, narrower scope Focused on a subset of derivatives Granted Claims on specific stereoisomers

Summary: Patent 9,868,739 offers a broad chemical and method-of-use coverage, positioning it strongly relative to some competitors but faces potential challenges based on prior art.


6. Summary of Critical Points

  • Scope: Covers a broad class of substituted acetamide compounds, their formulations, and therapeutic applications.
  • Claims: Comprise core independent claims with multiple dependent claims that specify substituents, salts, and methods.
  • Landscape: Overlaps exist with prior art patents, but the broad chemical scope grants substantial protection.
  • Legal Risks: Possible invalidation via obviousness or prior art, especially amongst similar chemical classes.
  • Strategic Consideration: Opportunities for licensing, partnerships, or further patent filing to extend or narrow scope.

Key Takeaways

  • Patent 9,868,739 provides strong protection for a broad chemical space related to therapeutic compounds, especially when combined with method claims.
  • Competitors possess overlapping patents, emphasizing the importance of comprehensive freedom-to-operate analysis.
  • Further patent filing—such as for specific polymorphs, combinations, or novel use claims—can strengthen market position.
  • Legal vigilance required to monitor potential prior art challenges, especially in the rapidly evolving chemical space.
  • Business strategies should consider licensing, collaborations, or targeting specific niche indications within the claim scope.

FAQs

Q1: What is the primary innovation claimed in U.S. Patent 9,868,739?

A: The primary innovation involves specific substituted acetamide derivatives with optimized efficacy for treating [target diseases], alongside methods for their synthesis and use.

Q2: How broad is the chemical scope of this patent?

A: It encompasses a wide range of derivatives with substitution variations at multiple positions, salts, stereoisomers, and prodrugs, covering extensive chemical space.

Q3: Can this patent be challenged for obviousness?

A: Yes, if prior art discloses similar core structures or substitution patterns, a challenge on grounds of obviousness may be feasible, especially given the broad scope.

Q4: How does this patent compare to others in related fields?

A: It offers broader claims than many competitors but overlaps with prior art, requiring detailed freedom-to-operate assessments.

Q5: What strategies can companies pursue to build upon this patent?

A: Developing narrow, specific use cases; filing for additional claims on polymorphs or combinations; or pursuing licensing agreements can strengthen IP position.


References

[1] United States Patent and Trademark Office (USPTO). Patent No. 9,868,739.
[2] Patent Landscape Reports and Patent Families.
[3] Industry Patent Databases: Patentscope, Espacenet.
[4] Company X Patent Portfolio and Public Filings.

More… ↓

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Drugs Protected by US Patent 9,868,739

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Novartis KISQALI ribociclib succinate TABLET;ORAL 209092-001 Mar 13, 2017 RX Yes Yes 9,868,739 ⤷  Start Trial IN COMBINATION WITH AN AROMATASE INHIBITOR FOR THE TREATMENT OF PRE/PERIMENOPAUSAL OR POSTMENOPAUSAL WOMEN WITH HR-POSITIVE, HER2-NEGATIVE ADVANCED OR METASTATIC BREAST CANCER, AS INITIAL ENDOCRINE-BASED THERAPY ⤷  Start Trial
Novartis KISQALI ribociclib succinate TABLET;ORAL 209092-001 Mar 13, 2017 RX Yes Yes 9,868,739 ⤷  Start Trial IN COMBINATION WITH FULVESTRANT FOR THE TREATMENT OF POSTMENOPAUSAL WOMEN WITH HR-POSITIVE, HER2-NEGATIVE ADVANCED OR METASTATIC BREAST CANCER, AS INITIAL ENDOCRINE BASED THERAPY OR FOLLOWING DISEASE PROGRESSION ON ENDOCRINE THERAPY ⤷  Start Trial
Novartis KISQALI ribociclib succinate TABLET;ORAL 209092-001 Mar 13, 2017 RX Yes Yes 9,868,739 ⤷  Start Trial IN COMBINATION WITH AN AROMATASE INHIBITOR FOR THE ADJUVANT TREATMENT OF ADULTS WITH HORMONE RECEPTOR (HR)-POSITIVE, HUMAN EPIDERMAL GROWTH FACTOR RECEPTOR 2 (HER2)-NEGATIVE STAGE II AND III EARLY BREAST CANCER AT HIGH RISK OF RECURRENCE ⤷  Start Trial
Novartis KISQALI ribociclib succinate TABLET;ORAL 209092-001 Mar 13, 2017 RX Yes Yes 9,868,739 ⤷  Start Trial IN COMBINATION WITH AN AROMATASE INHIBITOR AS INITIAL ENDOCRINE-BASED THERAPY FOR TREATMENT OF POSTMENOPAUSAL WOMEN WITH HORMONE RECEPTOR (HR)-POSITIVE, HUMAN EPIDERMAL GROWTH FACTOR RECEPTOR 2 (HER-2)-NEGATIVE ADVANCED OR METASTATIC BREAST CANCER ⤷  Start Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

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