Prosecution Insights
Last updated: October 04, 2026
Application No. 18/279,815

PYRIMIDINE OR PYRIDINE DERIVATIVES USEFUL AS HCN2 MODULATORS

Final Rejection §102§112
Filed
Aug 31, 2023
Priority
Mar 03, 2021 — GB 2103008.5 +1 more
Examiner
COUGHLIN, MATTHEW P
Art Unit
1626
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
King's College London
OA Round
2 (Final)
71%
Grant Probability
Favorable
3-4
OA Rounds
0m
Est. Remaining
84%
With Interview

Examiner Intelligence

Grants 71% — above average
71%
Career Allowance Rate
712 granted / 999 resolved
+11.3% vs TC avg
Moderate +12% lift
Without
With
+12.4%
Interview Lift
resolved cases with interview
Typical timeline
2y 5m
Avg Prosecution
59 currently pending
Career history
1044
Total Applications
across all art units

Statute-Specific Performance

§101
2.7%
-37.3% vs TC avg
§103
24.4%
-15.6% vs TC avg
§102
18.9%
-21.1% vs TC avg
§112
31.8%
-8.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 999 resolved cases

Office Action

§102 §112
Notice of Pre-AIA or AIA Status The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . DETAILED ACTION Claims 1-11, 14-16, 18, 20-26, 29, 30, 35 and 36 are pending in the application. Claims 26, 29, 30, 35 and 36 are rejected. Claims 1-11, 14-16, 18 and 20-25 are allowed. Information Disclosure Statement The Examiner has considered the Information Disclosure Statement(s) filed on April 17th, 2026. Response to Amendment / Argument Objections and rejections made in the previous Office Action have been overcome by Applicant's amendments to the claims. Therefore, arguments pertaining to these objections and rejections will not be addressed. Claim Rejections - 35 USC § 112(d) The following is a quotation of 35 U.S.C. 112(d): (d) REFERENCE IN DEPENDENT FORMS.—Subject to subsection (e), a claim in dependent form shall contain a reference to a claim previously set forth and then specify a further limitation of the subject matter claimed. A claim in dependent form shall be construed to incorporate by reference all the limitations of the claim to which it refers. The following is a quotation of pre-AIA 35 U.S.C. 112, fourth paragraph: Subject to the following paragraph [i.e., the fifth paragraph of pre-AIA 35 U.S.C. 112], a claim in dependent form shall contain a reference to a claim previously set forth and then specify a further limitation of the subject matter claimed. A claim in dependent form shall be construed to incorporate by reference all the limitations of the claim to which it refers. Claims 26, 29, 30, 35 and 36 are rejected under 35 U.S.C. 112(d) or pre-AIA 35 U.S.C. 112, 4th paragraph, as being of improper dependent form for failing to further limit the subject matter of the claim upon which it depends, or for failing to include all the limitations of the claim upon which it depends. These claims are each ultimately dependent upon claim 1, which excludes compounds (A) and (B), whereas the cited dependent claims each embrace embodiments involving compounds (A) and (B). Applicant may cancel the claim(s), amend the claim(s) to place the claim(s) in proper dependent form, rewrite the claim(s) in independent form, or present a sufficient showing that the dependent claim(s) complies with the statutory requirements. Claim Rejections - 35 USC § 102 The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention. (a)(2) the claimed invention was described in a patent issued under section 151, or in an application for patent published or deemed published under section 122(b), in which the patent or application, as the case may be, names another inventor and was effectively filed before the effective filing date of the claimed invention. Claim(s) 26 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by CAS Registry No. 1261604-18-5, which entered Registry on February 2nd, 2011. CAS Registry No. 1261604-18-5 is drawn to (αS)-α-[2-(6-bromo-1,2-benzisoxazol-3-yl)phenyl]-2-pyridineethanamine, which has the following structure: PNG media_image1.png 184 310 media_image1.png Greyscale . The compound corresponds to formula (A) depicted in claim 1. Regarding instant claim 26, which is drawn to a pharmaceutical composition comprising the compound and a pharmaceutically acceptable excipient, the CAS Registry entry includes predicted properties including mass and molar solubilities at varying pH values. MPEP 2131.02 states: A reference disclosure can anticipate a claim when the reference describes the limitations but "'d[oes] not expressly spell out' the limitations as arranged or combined as in the claim, if a person of skill in the art, reading the reference, would ‘at once envisage’ the claimed arrangement or combination.” Kennametal, Inc. v. Ingersoll Cutting Tool Co., 780 F.3d 1376, 1381, 114 USPQ2d 1250, 1254 (Fed. Cir. 2015) In this situation, a person having ordinary skill in the art in viewing the properties of the Registry entry would at once envisage a composition with the compound and water, which is a pharmaceutically acceptable excipient. Claim(s) 26 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by CAS Registry No. 1261604-41-4, which entered Registry on February 2nd, 2011. CAS Registry No. 1261604-41-4 is drawn to (αS)-α-[2-(7-bromo-1,2-benzisoxazol-3-yl)phenyl]-2-pyridineethanamine, which has the following structure: PNG media_image2.png 190 270 media_image2.png Greyscale . The compound corresponds to formula (B) depicted in claim 1. Regarding instant claim 26, which is drawn to a pharmaceutical composition comprising the compound and a pharmaceutically acceptable excipient, the CAS Registry entry includes predicted properties including mass and molar solubilities at varying pH values. MPEP 2131.02 states: A reference disclosure can anticipate a claim when the reference describes the limitations but "'d[oes] not expressly spell out' the limitations as arranged or combined as in the claim, if a person of skill in the art, reading the reference, would ‘at once envisage’ the claimed arrangement or combination.” Kennametal, Inc. v. Ingersoll Cutting Tool Co., 780 F.3d 1376, 1381, 114 USPQ2d 1250, 1254 (Fed. Cir. 2015) In this situation, a person having ordinary skill in the art in viewing the properties of the Registry entry would at once envisage a composition with the compound and water, which is a pharmaceutically acceptable excipient. Allowable Subject Matter Claims 1-11, 14-16, 18 and 20-25 are allowed. Conclusion Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to MATTHEW P COUGHLIN whose telephone number is (571)270-1311. The examiner can normally be reached Monday - Friday, 10 am - 6 pm EST. Examiner interviews are available via telephone, in-person, and video conferencing using a USPTO supplied web-based collaboration tool. To schedule an interview, applicant is encouraged to use the USPTO Automated Interview Request (AIR) at http://www.uspto.gov/interviewpractice. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Renee Claytor can be reached at 571-272-8394. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of published or unpublished applications may be obtained from Patent Center. Unpublished application information in Patent Center is available to registered users. To file and manage patent submissions in Patent Center, visit: https://patentcenter.uspto.gov. Visit https://www.uspto.gov/patents/apply/patent-center for more information about Patent Center and https://www.uspto.gov/patents/docx for information about filing in DOCX format. For additional questions, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /MATTHEW P COUGHLIN/Primary Examiner, Art Unit 1626
Read full office action

Prosecution Timeline

Aug 31, 2023
Application Filed
Mar 11, 2026
Non-Final Rejection mailed — §102, §112
Jun 11, 2026
Response Filed
Aug 28, 2026
Final Rejection mailed — §102, §112 (current)

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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

3-4
Expected OA Rounds
71%
Grant Probability
84%
With Interview (+12.4%)
2y 5m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 999 resolved cases by this examiner. Grant probability derived from career allowance rate.

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