Prosecution Insights
Last updated: April 19, 2026
Application No. 18/540,293

SUBSTITUTED DIARYL COMPOUND AS WELL AS PREPARATION METHOD AND APPLICATION THEREOF

Non-Final OA §101§112
Filed
Dec 14, 2023
Examiner
ENGLISH, CONNOR KENNEDY
Art Unit
1625
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Shandong First Medical Univ & Shandong Academy Of Medical Sciences
OA Round
1 (Non-Final)
58%
Grant Probability
Moderate
1-2
OA Rounds
3y 7m
To Grant
99%
With Interview

Examiner Intelligence

Grants 58% of resolved cases
58%
Career Allow Rate
15 granted / 26 resolved
-2.3% vs TC avg
Strong +55% interview lift
Without
With
+55.0%
Interview Lift
resolved cases with interview
Typical timeline
3y 7m
Avg Prosecution
49 currently pending
Career history
75
Total Applications
across all art units

Statute-Specific Performance

§101
3.8%
-36.2% vs TC avg
§103
36.6%
-3.4% vs TC avg
§102
13.0%
-27.0% vs TC avg
§112
30.0%
-10.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 26 resolved cases

Office Action

§101 §112
DETAILED ACTION 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 . Current Status of 18/540,293 This Office action is responsive to the claims of 12/14/2023. Claims 1-8 are pending and have been examined on the merits. Priority Applicants identify the instant application as a continuation of PCT/CN2022/082764, filed 03/24/2022. Information Disclosure Statement No information disclosure statement was provided by Applicants for consideration at the time of examination. Specification The abstract of the disclosure is objected to because the figure of the compound of Formula (I) is grainy and difficult to read. A corrected abstract of the disclosure is required and must be presented on a separate sheet, apart from any other text. See MPEP § 608.01(b). The disclosure is objected to because of the following informalities: The figure of Formula (I) in [0005] is grainy and difficult to read. [0005-0012] contain grainy images of substituent R6. As drawn, it is unclear where the attachment of these substituents is supposed to occur. Based on the example compounds of the specification, it appears that attachment is at the nitrogen atom. To clearly denote this, a squiggly line should be placed over the bonds from the nitrogen atoms such as PNG media_image1.png 122 156 media_image1.png Greyscale . This change should be applied to all instances of R6 in the specification. The figures of [0019-0023] are grainy and difficult to read. The reagents/reaction conditions over the reaction arrows are particularly difficult to read Appropriate correction is required. Claim Objections Claims 1- 6 are objected to because of the following informalities: Claims 1-6 contain numerous grammatical and formatting errors and lack a consistent format. A uniform format must be adhered to throughout the claim set. MPEP 608.01(m) states "[e]ach claim begins with a capital letter and ends with a period. Periods may not be used elsewhere in the claims except for abbreviations. See Fressola v. Manbeck, 36 USPQ2d 1211 (D.D.C. 1995). Where a claim sets forth a plurality of elements or steps, each element or step of the claim should be separated by a line indentation, 37 CFR 1.75(i)." Claims 3-6 do not begin with a capital letter. Additionally, claims 3 and 4 contain multiple sentences punctuated by periods. Each of claims 3-6 must be amended so that the first word of the claim begins with a capital letter. Further, in claims 3 and 4, all internal periods must be replaced with semicolons, and each claim must terminate with a single period. In claims 3 and 4, each instance of the word "Or" should be corrected to lowercase "or." The phrase "is characterized in that" appearing in claims 2-6 should be deleted and replaced with "wherein." The phrase "the described" of claims 2-6 is redundant and should be removed. Claim 2 recites “T the compound.” The extraneous “T” should be deleted and replaced with “The.” Claims 1 and 2 list substituents for each respective R group separated by commas, however only the list for R5 includes a terminal comma in these lists. These lists should contain the word "or" proceeding the final entry of the list. For example, R5 represents -H, Cl, -I, or -Br. The listings of substituents in claims 1 and 2 do not consistently end with a semicolon, whereas claims 3-6 separate defined substituents using semicolons. The format of the claims must be consistent throughout the claim set. Either all substituent lists should terminate with semicolons, or none should. The examiner recommends using a semicolon after the definition of each R group. The structure of Formula (I) in claim 1 is grainy and difficult to read. It is not possible to distinguish the R groups and any potential stereochemistry in the molecule. Appropriate correction is required. Claim Rejections - 35 USC § 112 The following is a quotation of 35 U.S.C. 112(b): (b) CONCLUSION.—The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention. The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph: The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention. Claims 1-6 are rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. The claims recite the substituent R6 defined as a group of compounds. However, the depicted structures of R6 do not clearly indicate the point of attachment to the structure of Formula (I). Additionally, the depicted structures of R6 include an additional methyl group in their structures. For example, the first substituent of R6 in claim 1 is a 1,4-dimethylpiperidine moiety. However the molecule of Embodiment 1 shows only a 4-methylpiperidine functionality. As a result, the scope of the claimed compounds cannot be reasonably determined. The examiner suggests amending the structures of R6 to include a squiggly line perpendicular to the bond of attachment such as PNG media_image1.png 122 156 media_image1.png Greyscale . This depiction clearly identifies the point of attachment to the core scaffold. Claim Rejections - 35 USC § 101 35 U.S.C. 101 reads as follows: Whoever invents or discovers any new and useful process, machine, manufacture, or composition of matter, or any new and useful improvement thereof, may obtain a patent therefor, subject to the conditions and requirements of this title. Claim 7 and 8 rejected under 35 U.S.C. 101 because the claimed invention is directed to non-statutory subject matter. The claims do not fall within at least one of the four categories of patent eligible subject matter because the claims are directed to the “use of the compound of any of claims 1 in the preparation of a drug for treating cancer.” Such a use claim does not recite a process comprising steps, nor does it recite a manufacture or composition of matter. Accordingly, the claims are not directed to a statutory category of invention. Conclusion No claims are allowed. Any inquiry concerning this communication or earlier communications from the examiner should be directed to CONNOR KENNEDY ENGLISH whose telephone number is (571)270-0813. The examiner can normally be reached Monday Friday, 8 a.m. 5 p.m. ET.. 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, Andrew Kosar can be reached at (571)272-0913. 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. /C.K.E./Examiner, Art Unit 1625 /Andrew D Kosar/Supervisory Patent Examiner, Art Unit 1625
Read full office action

Prosecution Timeline

Dec 14, 2023
Application Filed
Feb 04, 2026
Non-Final Rejection — §101, §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

1-2
Expected OA Rounds
58%
Grant Probability
99%
With Interview (+55.0%)
3y 7m
Median Time to Grant
Low
PTA Risk
Based on 26 resolved cases by this examiner. Grant probability derived from career allow rate.

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