IP Library › Granted Patent US 12,564,638
Granted Patent B2
US 12,564,638 · App. 17/632,612 · Granted Mar 3, 2026

EGFR protein degradant and anti-tumor application thereof

Inventors: Xiaobao Yang (Shanghai, CN); Biao Jiang (Shanghai, CN); Xiaoling Song (Shanghai, CN); Ning Sun (Shanghai, CN); Chaowei Ren (Shanghai, CN); Renhong Sun (Shanghai, CN); Xiaojuan Qu (Shanghai, CN); Haixia Liu (Shanghai, CN); Xing Qiu (Shanghai, CN)
Assignee: SHANGHAITECH UNIVERSITY
A61K47/55A61K47/545A61P35/00
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 12,564,638
App. No.
17/632,612
Granted
Mar 3, 2026
Kind
B2
Abstract

A bifunctional compound, or a pharmaceutically acceptable salt, an isomer, a prodrug, a polymorphic substance or a solvate thereof. The chemical structural formula of the bifunctional compound is represented as formula I, and the bifunctional compound can be used for preventing or treating cancers.

Claims (49)

1 . A bifunctional compound of Formula I,

or a pharmaceutically acceptable salt, an isomer, or a solvate thereof, wherein the isomer is selected from: enantiomers, diastereisomers, or cis-trans isomers,

wherein:

(i) the EGFR Binders represents a group shown by the following formula:

ULM represents:

wherein A represents —CH 2 — or —(C═O)—;

B, X, Y, and Z each independently represent CH;

R represents —S—, —CH 2 —, —NH—, —O— or ethynylene;

D is absent; and

LIN represents a linking group covalently bonded to the EGFR Binders and ULM, and represents: —W—(CH 2 ) 2 —, —W—(CH 2 ) 3 —, —W—(CH 2 ) 4 —, —W—(CH 2 ) 5 —, —W—(CH 2 ) 6 —, —W—(CH 2 ) 7 —, —W—(CH 2 ) 8 —, —W—(CH 2 ) 9 —, —W—(CH 2 ) 10 —, —W—(CH 2 ) 11 —, —W—(CH 2 ) 12 —, —W—(CH 2 ) 13 —, —W—(CH 2 ) 14 —, or —W—(CH 2 ) 15 —, wherein W represents —(C═O)—, or W is absent;

or

(ii) the EGFR Binders represents a group shown by the following formula:

ULM represents:

wherein A represents —CH 2 — or —(C═O)—;

B, X, Y, and Z each independently represent CH;

R represents —S—, —CH 2 —, —NH—, —O— or ethynylene;

D is absent; and

LIN represents a linking group covalently bonded to the EGFR Binders and ULM, and represents: —CH 2 -phenylene-CH 2 —;

or

(iii) the EGFR Binders represents a group shown by the following formula:

ULM represents:

wherein A represents —CH 2 — or —(C═O)—;

B, X, Y, and Z each independently represent CH;

R represents —S— or ethynylene;

D is absent; and

LIN represents a linking group covalently bonded to the EGFR Binders and ULM, and represents: —W—(CH 2 ) 2 —, —W—(CH 2 ) 3 —, —W—(CH 2 ) 4 —, —W—(CH 2 ) 5 —, —W—(CH 2 ) 6 —, —W—(CH 2 ) 7 —, —W—(CH 2 ) 8 —, —W—(CH 2 ) 9 —, —W—(CH 2 ) 10 —, —W—(CH 2 ) 11 —, —W—(CH 2 ) 12 —, —W—(CH 2 ) 13 —, —W—(CH 2 ) 14 —, or —W—(CH 2 ) 15 —, wherein W represents —(C═O)—, or W is absent;

or

(iv) the EGFR Binders represents a group shown by the following formula:

ULM represents:

wherein A represents —CH 2 — or —(C═O)—;

B, X, Y, and Z each independently represent CH;

R represents —S—, —NH— or ethynylene;

D is absent; and

LIN represents a linking group covalently bonded to the EGFR Binders and ULM, and represents: —W—(CH 2 ) 2 —, —W—(CH 2 ) 3 —, —W—(CH 2 ) 4 —, —W—(CH 2 ) 5 —, —W—(CH 2 ) 6 —, —W—(CH 2 ) 7 —, —W—(CH 2 ) 8 —, —W—(CH 2 ) 9 —, —W—(CH 2 ) 10 —, —W—(CH 2 ) 11 —, —W—(CH 2 ) 12 —, —W—(CH 2 ) 13 —, —W—(CH 2 ) 14 —, or —W—(CH 2 ) 15 —, wherein W represents —(C═O)—, or W is absent.

2 . The bifunctional compound of claim 1 , or a pharmaceutically acceptable salt, an isomer, or a solvate thereof, wherein the bifunctional compound is a bifunctional compound according to (i), wherein in (i), the ULM represents a group selected from ones shown by the following formulas:

3 . The bifunctional compound of claim 1 , or a pharmaceutically acceptable salt, an isomer, or a solvate thereof, wherein the bifunctional compound is a bifunctional compound according to (ii).

4 . The bifunctional compound of claim 3 , or a pharmaceutically acceptable salt, an isomer, or a solvate thereof, wherein in (ii), the ULM represents a group selected from ones shown by the following formulas:

5 . The bifunctional compound of claim 1 , or a pharmaceutically acceptable salt, an isomer, or a solvate thereof, wherein the bifunctional compound is a bifunctional compound according to (iii).

6 . The bifunctional compound of claim 5 , or a pharmaceutically acceptable salt, an isomer, or a solvate thereof, wherein in (iii), the ULM represents a group selected from ones shown by the following formulas:

7 . The bifunctional compound of claim 1 , or a pharmaceutically acceptable salt, an isomer, or a solvate thereof, wherein the bifunctional compound is a bifunctional compound according to (iv).

8 . The bifunctional compound of claim 7 , or a pharmaceutically acceptable salt, an isomer, or a solvate thereof, wherein in (iv), the ULM represents a group selected from ones shown by the following formulas:

9 . The bifunctional compound of claim 1 , or a pharmaceutically acceptable salt, an isomer, or a solvate thereof, wherein the bifunctional compound is selected from:

10 . The bifunctional compound of claim 1 , or a pharmaceutically acceptable salt, an isomer, or a solvate thereof, wherein the bifunctional compound is a bifunctional compound according to (i).

11 . A pharmaceutical composition comprising the bifunctional compound of claim 1 or a pharmaceutically acceptable salt, an isomer, or a solvate thereof, and at least one pharmaceutically acceptable carrier, an additive, an adjuvant, or an excipient.

12 . A method for regulating epidermal growth factor receptor (EGFR) and/or its mutants, comprising administering to an individual a therapeutically effective amount of the bifunctional compound of claim 1 or a pharmaceutically acceptable salt thereof, or a pharmaceutical composition comprising the bifunctional compound or pharmaceutically acceptable salt thereof.

13 . A method for treating receptor tyrosine kinase (RTK)-associated diseases, comprising administering to an individual a therapeutically effective amount of the bifunctional compound of claim 1 or a pharmaceutically acceptable salt thereof, or a pharmaceutical composition comprising the bifunctional compound or pharmaceutically acceptable salt thereof.

14 . A method for treating EGFR-dependent associated diseases, comprising administering to an individual a therapeutically effective amount of the bifunctional compound of claim 1 for a pharmaceutically acceptable salt thereof, or a pharmaceutical composition comprising the bifunctional compound or pharmaceutically acceptable salt thereof.

15 . A method for treating one or more diseases selected from tumors, myeloid tumors, or solid tumors, cancers, leukemia, lymphoma, colorectal cancer, brain cancer, bone cancer, epithelial cell-derived tumors (epithelial cancers), basal cell carcinoma, adenocarcinoma, gastrointestinal cancer, lip cancer, oral cancer, esophageal cancer, small intestine cancer, gastric cancer, colon cancer, liver cancer, bladder cancer, pancreatic cancer, ovarian cancer, cervical cancer, lung cancer, breast cancer, skin cancer, squamous cell and/or basal cell carcinoma, prostate cancer, glioma, glioblastoma, renal cell carcinoma and other cancers known to affect systemic epithelial cells, chronic granulocytic leukemia (CML), acute myeloid leukemia (AML) and acute promyelocytic leukemia (APL), comprising administering to an individual a therapeutically effective amount of the bifunctional compound or a pharmaceutically acceptable salt thereof of claim 1 , or a pharmaceutical composition comprising the bifunctional compound or pharmaceutically acceptable salt thereof.

16 . The method of claim 14 , wherein the EGFR-dependent associated diseases are EGFR overexpression- or high EGFR activity-associated diseases.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 2, 2022
From: YANG, XIAOBAO; JIANG, BIAO; SONG, XIAOLING; SUN, NING; REN, CHAOWEI; SUN, RENHONG; QU, XIAOJUAN; LIU, HAIXIA; QIU, XING
To: SHANGHAITECH UNIVERSITY
Reel/Frame 059144/0613 →
Priority Claims (1)
CN 201910717328.8 · Aug 5, 2019 · national
Continuity (1)
Related Publication 20220313829A1 · Oct 6, 2022
References Cited (124)
US 9993514B2 · Campos · 2018 [cited by examiner]
US 10385037B2 · Ruchelman et al. · 2019 [cited by applicant]
US 10759808B2 · Wang et al. · 2020 [cited by applicant]
US 11104666B2 · Crew et al. · 2021 [cited by applicant]
US 12226424B2 · Yang et al. · 2025 [cited by applicant]
US 20020177601A1 · Himmelsbach · 2002 [cited by examiner]
US 20060063926A1 · Ma et al. · 2006 [cited by applicant]
US 20060211728A1 · Greig et al. · 2006 [cited by applicant]
US 20080167345A1 · Jones et al. · 2008 [cited by applicant]
US 20100099658A1 · Kondoh et al. · 2010 [cited by applicant]
US 20100204196A1 · Chamberlain et al. · 2010 [cited by applicant]
US 20120028924A1 · Aquila et al. · 2012 [cited by applicant]
US 20120083488A1 · Kinoshita et al. · 2012 [cited by applicant]
US 20120202776A1 · Wang et al. · 2012 [cited by applicant]
US 20130143922A1 · Greig et al. · 2013 [cited by applicant]
US 20130190298A1 · Liang et al. · 2013 [cited by applicant]
US 20150291562A1 · Crew et al. · 2015 [cited by applicant]
US 20160022642A1 · Crews · 2016 [cited by examiner]
US 20170121321A1 · Crews · 2017 [cited by examiner]
US 20180099940A1 · Crew · 2018 [cited by applicant]
US 20220041576A1 · Chen et al. · 2022 [cited by applicant]
US 20220041578A1 · Chen et al. · 2022 [cited by applicant]
US 20220117982A1 · Yang et al. · 2022 [cited by applicant]
US 20220143002A1 · Yang et al. · 2022 [cited by applicant]
US 20220313829A1 · Yang · 2022 [cited by applicant]
US 20230096517A1 · Yang · 2023 [cited by applicant]
US 20230203022A1 · Yang · 2023 [cited by applicant]
CN 1867331 · 2006 [cited by applicant]
CN 101679380 · 2010 [cited by applicant]
CN 102822165 · 2012 [cited by applicant]
CN 103396397 · 2013 [cited by applicant]
CN 103787802 · 2014 [cited by applicant]
CN 106432104 · 2017 [cited by applicant]
CN 106458993 · 2017 [cited by applicant]
CN 108136044 · 2018 [cited by applicant]
CN 108366992 · 2018 [cited by applicant]
CN 109311900 · 2019 [cited by applicant]
CN 109475528 · 2019 [cited by applicant]
CN 105566290 · 2019 [cited by applicant]
CN 109912655 · 2019 [cited by applicant]
CN 109928956 · 2019 [cited by applicant]
CN 110204532 · 2019 [cited by applicant]
CN 110291087 · 2019 [cited by applicant]
CN 110357889 · 2019 [cited by applicant]
CN 110506039 · 2019 [cited by applicant]
CN 11051298 · 2020 [cited by applicant]
CN 110963994 · 2020 [cited by applicant]
CN 111606883 · 2020 [cited by applicant]
JP H02184659 · 1990 [cited by applicant]
JP 2006519827 · 2006 [cited by applicant]
JP 2008513538 · 2008 [cited by applicant]
JP 2010515715 · 2010 [cited by applicant]
JP 2010522170 · 2010 [cited by applicant]
JP 2010535798 · 2010 [cited by applicant]
JP 2011523646 · 2011 [cited by applicant]
JP 2013534221 · 2013 [cited by applicant]
JP 2013539765 · 2013 [cited by applicant]
JP 2017513862 · 2017 [cited by applicant]
JP 2019513746 · 2019 [cited by applicant]
JP 2020504089 · 2020 [cited by applicant]
JP 2022503942 · 2022 [cited by applicant]
JP 2022521746 · 2022 [cited by applicant]
WO 2004080976 · 2004 [cited by applicant]
WO WO2005030765A1 · 2005 [cited by examiner]
WO 2008115516 · 2008 [cited by applicant]
WO WO2008150118A2 · 2008 [cited by examiner]
WO 2009008371 · 2009 [cited by applicant]
WO 2010143664 · 2010 [cited by applicant]
WO 2016065980 · 2016 [cited by applicant]
WO 2016197032 · 2016 [cited by applicant]
WO 2017079267 · 2017 [cited by applicant]
WO 2017117474 · 2017 [cited by applicant]
WO WO2017117474A1 · 2017 [cited by examiner]
WO 2017176957 · 2017 [cited by applicant]
WO 2017176958 · 2017 [cited by applicant]
WO 2017185031 · 2017 [cited by applicant]
WO WO2017176958A1 · 2017 [cited by examiner]
WO WO2017185036A1 · 2017 [cited by examiner]
WO 2017197051 · 2017 [cited by applicant]
WO 2017197056 · 2017 [cited by applicant]
WO 2018052945 · 2018 [cited by applicant]
WO 2018052949 · 2018 [cited by applicant]
WO 2018071606 · 2018 [cited by applicant]
WO 2018098288 · 2018 [cited by applicant]
WO 2018102067 · 2018 [cited by applicant]
WO 2018102725 · 2018 [cited by applicant]
WO 2018119441 · 2018 [cited by applicant]
WO 2018119448 · 2018 [cited by applicant]
WO 2018140809 · 2018 [cited by applicant]
WO 2019038717 · 2019 [cited by applicant]
WO 2019079569 · 2019 [cited by applicant]
WO 2019133531 · 2019 [cited by applicant]
WO 2019195609 · 2019 [cited by applicant]
WO 2019196812 · 2019 [cited by applicant]
WO 2020006264 · 2020 [cited by applicant]
WO 2020114482 · 2020 [cited by applicant]
WO 2020173426 · 2020 [cited by applicant]
WO 2020198435 · 2020 [cited by applicant]
WO 2021113557 · 2021 [cited by applicant]
WO 2021118629 · 2021 [cited by applicant]
Yamazoe et al, Heterobifunctional molecules induce dephosphorylation of kinases—a proof of concept study, ChemRxiv, Jul. 31, 2019, doi.org/10.26434/chemrxiv.9177878.v1 (Year: 2019). [cited by examiner]
International Search Report for PCT/CN2020/107177 dated Oct. 28, 2020, 10 pages. [cited by applicant]
Steinebach “A MedChem toolbox for cereblon-directed PROTACs” Med. Chem. Commun., 2019, 10, 1037-1041 (Year: 2019). [cited by applicant]
International Search Report for PCT/CN2020/076578 mailed Mar. 30, 2020, 9 pages. [cited by applicant]
Written Opinion of the ISA for PCT/CN2020/076578 mailed Mar. 30, 2020, 12 pages. [cited by applicant]
International Search Report for PCT/CN2021/077793, mailed May 26, 2021, 14 pages. [cited by applicant]
Written Opinion of the ISA for PCT/CN2021/077793, mailed May 26, 2021, 19 pages. [cited by applicant]
Donghuai Xiao et al., “Design, synthesis and biological evaluation of the thioether-containing lenalidomide analogs with anti-proliferative activities”, Science Direct, European Journal of Medicinal Chemistry 176 (avail… [cited by applicant]
Yiming Li et al., “A Highly Efficient Cu-Catalyzed S-Transfer Reaction: From Amine to Sulfide”, Organic Letters, pubs.acs.org/OrgLett, ASC Publications, 2014 American Chemical Society, dx.doi.org/10.1021/ol5009747, pp. … [cited by applicant]
Yiming Li et al., “Selective Late-Stage Oxygenation of Sulfides with Ground-State Oxygen by Uranyl Photocatalysis”, Angewandte Chem. Int. Ed. 2019, first published Jul. 2019, 58, pp. 13499-13506, DOI: 10.1002/anie.20190… [cited by applicant]
Turk, et. al., Proceedings of the National Academy of Sciences of the United States of America (1996), 93(15), 7552-7556. [cited by applicant]
Ishoey, Mette, Translation Termination Factor GSPT1 Is a Phenotypi cally Relevant Off-Target of Heterobifunctional Phthalimide Degraders, A CS Chemical Biology , 2018, 13(3), 553-560. [cited by applicant]
Zhang, Chengwei, Proteolysis Targeting Chimeras (PROTACs) of Anaplastic Lymphoma Kinase (ALK), European Journal of Medicinal Chemistry, 2018, 151, 304-314. [cited by applicant]
Lai, Ashton C., Modular PROTAC Design for the Degradation of Oncogenic BCR-ABL, Angewandte Chemie, International Edition, 2016, 55(2), 807-810. [cited by applicant]
Restriction Requirement issued in U.S. Appl. No. 17/433,462 dated Jul. 30, 2024, 13 pages. [cited by applicant]
Non-Final Office Action issued in U.S. Appl. No. 17/433,462 dated Dec. 13, 2024, 19 pages. [cited by applicant]
Restriction Requirement issued in U.S. Appl. No. 17/046,690 dated May 24, 2022, 11 pages. [cited by applicant]
Non-Final Office Action issued in U.S. Appl. No. 17/046,690 dated Sep. 14, 2022, 31 pages. [cited by applicant]
Non-Final Office Action issued in U.S. Appl. No. 17/046,690 dated May 24, 2023, 19 pages. [cited by applicant]
Non-Final Office Action issued in U.S. Appl. No. 17/046,690 dated Mar. 25, 2024, 21 pages. [cited by applicant]
Restriction Requirement issued in U.S. Appl. No. 17/801,953 dated Feb. 5, 2025, 11 pages. [cited by applicant]
U.S. Appl. No. 17/922,124, filed Oct. 28, 2022, 89 pages. [cited by applicant]
U.S. Appl. No. 17/801,953, filed Aug. 24, 2022, 103 pages. [cited by applicant]
U.S. Appl. No. 17/433,462, filed Aug. 24, 2021, 282 pages. [cited by applicant]