KR20180073687A - 호흡기 질환의 치료를 위한 jak 키나제 저해제 화합물 - Google Patents

호흡기 질환의 치료를 위한 jak 키나제 저해제 화합물 Download PDF

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Publication number
KR20180073687A
KR20180073687A KR1020187015680A KR20187015680A KR20180073687A KR 20180073687 A KR20180073687 A KR 20180073687A KR 1020187015680 A KR1020187015680 A KR 1020187015680A KR 20187015680 A KR20187015680 A KR 20187015680A KR 20180073687 A KR20180073687 A KR 20180073687A
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South Korea
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alkyl
compound
ethyl
imidazo
tetrahydro
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Withdrawn
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KR1020187015680A
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English (en)
Korean (ko)
Inventor
폴 알. 패더리
존 알. 제이콥슨
앤-마리 뷰솔레일
게리 이.엘. 브랜트
멜리사 플뢰리
란 지앙
카메론 스미스
스티븐 디.이. 설리반
오든 로리 진 반
피어-진 콜슨
진 티모시 파스
미로슬라브 랍타
노아 벤자민
마르타 다브로스
벤캇 알. 탈라디
Original Assignee
세라밴스 바이오파마 알앤디 아이피, 엘엘씨
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Publication of KR20180073687A publication Critical patent/KR20180073687A/ko
Withdrawn legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/33—Heterocyclic compounds
    • A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/41—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with two or more ring hetero atoms, at least one of which being nitrogen, e.g. tetrazole
    • A61K31/415—1,2-Diazoles
    • A61K31/416—1,2-Diazoles condensed with carbocyclic ring systems, e.g. indazole
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/33—Heterocyclic compounds
    • A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/435—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom
    • A61K31/4353—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom ortho- or peri-condensed with heterocyclic ring systems
    • A61K31/437—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom ortho- or peri-condensed with heterocyclic ring systems the heterocyclic ring system containing a five-membered ring having nitrogen as a ring hetero atom, e.g. indolizine, beta-carboline
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P11/00—Drugs for disorders of the respiratory system
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P11/00—Drugs for disorders of the respiratory system
    • A61P11/06—Antiasthmatics
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P43/00—Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D471/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00
    • C07D471/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00 in which the condensed system contains two hetero rings
    • C07D471/04—Ortho-condensed systems

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  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Medicinal Chemistry (AREA)
  • Public Health (AREA)
  • Pulmonology (AREA)
  • Engineering & Computer Science (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Epidemiology (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
KR1020187015680A 2015-11-03 2016-11-02 호흡기 질환의 치료를 위한 jak 키나제 저해제 화합물 Withdrawn KR20180073687A (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201562250113P 2015-11-03 2015-11-03
US62/250,113 2015-11-03
PCT/US2016/059999 WO2017079205A1 (en) 2015-11-03 2016-11-02 Jak kinase inhibitor compounds for treatment of respiratory disease

Publications (1)

Publication Number Publication Date
KR20180073687A true KR20180073687A (ko) 2018-07-02

Family

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KR1020187015680A Withdrawn KR20180073687A (ko) 2015-11-03 2016-11-02 호흡기 질환의 치료를 위한 jak 키나제 저해제 화합물

Country Status (22)

Country Link
US (6) US10100049B2 (cg-RX-API-DMAC10.html)
EP (1) EP3371186A1 (cg-RX-API-DMAC10.html)
JP (1) JP6800969B2 (cg-RX-API-DMAC10.html)
KR (1) KR20180073687A (cg-RX-API-DMAC10.html)
CN (1) CN108349972B (cg-RX-API-DMAC10.html)
AU (1) AU2016350816B2 (cg-RX-API-DMAC10.html)
BR (1) BR112018008966B1 (cg-RX-API-DMAC10.html)
CA (1) CA3001542C (cg-RX-API-DMAC10.html)
CL (1) CL2018001145A1 (cg-RX-API-DMAC10.html)
CO (1) CO2018005640A2 (cg-RX-API-DMAC10.html)
EA (1) EA034914B1 (cg-RX-API-DMAC10.html)
HK (1) HK1252685A1 (cg-RX-API-DMAC10.html)
IL (1) IL258772B (cg-RX-API-DMAC10.html)
MX (1) MX374605B (cg-RX-API-DMAC10.html)
MY (1) MY195427A (cg-RX-API-DMAC10.html)
NZ (1) NZ741737A (cg-RX-API-DMAC10.html)
PH (1) PH12018500828B1 (cg-RX-API-DMAC10.html)
SA (1) SA518391470B1 (cg-RX-API-DMAC10.html)
TW (1) TWI710560B (cg-RX-API-DMAC10.html)
UA (1) UA123633C2 (cg-RX-API-DMAC10.html)
WO (1) WO2017079205A1 (cg-RX-API-DMAC10.html)
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190140062A (ko) * 2017-05-01 2019-12-18 세라밴스 바이오파마 알앤디 아이피, 엘엘씨 Jak 저해제 화합물을 사용하는 치료 방법

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI710560B (zh) 2015-11-03 2020-11-21 美商施萬生物製藥研發Ip有限責任公司 用於治療呼吸疾病之jak激酶抑制劑化合物
EP3831830A1 (en) 2015-11-03 2021-06-09 Topivert Pharma Limited 4,5,6,7-tetrahydro-1h-imidazo[4,5-c]pyridine and 1,4,5,6,7,8-hexahydroimidazo[4,5-d]azepine derivatives as janus kinase inhibitors
DK3712152T3 (da) 2015-11-03 2021-03-22 Topivert Pharma Ltd 4,5,6,7-tetrahydro-1h-imidazo[4,5-c]pyridin og 1,4,5,6,7,8-hexahydroimidazo[4,5-d]azepinderivater som janus kinase-inhibitorer
TWI754019B (zh) * 2017-03-09 2022-02-01 美商施萬生物製藥研發 Ip有限責任公司 含有4員雜環醯胺之jak抑制劑
AR111495A1 (es) 2017-05-01 2019-07-17 Theravance Biopharma R&D Ip Llc Compuestos de imidazo-piperidina fusionada como inhibidores de jak
EP3619208B1 (en) * 2017-05-01 2023-06-07 Theravance Biopharma R&D IP, LLC Crystalline forms of a jak inhibitor compound
US20200281857A1 (en) 2017-11-22 2020-09-10 Dauntless 1, Inc. Therapeutic compound formulations
US12171764B2 (en) 2018-06-20 2024-12-24 Biora Therapeutics, Inc. Treatment of a disease of the gastrointestinal tract with a JAK or other kinase inhibitor
BR112021004087A2 (pt) * 2018-09-04 2021-05-25 Theravance Biopharma R&D Ip, Llc processo para preparar inibidores de jak e seus intermediários
DK3837258T3 (da) * 2018-09-04 2024-07-22 Theravance Biopharma R&D Ip Llc Dimethyl amino azetidine amides as jak inhibitors
BR112021004063A2 (pt) 2018-09-04 2021-05-25 Theravance Biopharma R&D Ip, Llc amidas heterocíclicas com 5 a 7 membros como inibidores de jak
EP3853229A1 (en) 2018-10-29 2021-07-28 Theravance Biopharma R&D IP, LLC 2-azabicyclo hexane compound as jak inhibitor
WO2020106751A1 (en) * 2018-11-19 2020-05-28 New York University Inhinitors of gli1 as therapeutic agents
KR102873783B1 (ko) 2019-02-25 2025-10-21 메디노 파마슈티컬 테크놀로지 (주하이) 컴퍼니 리미티드 Jak 억제제 화합물 및 그 사용
US12698289B2 (en) 2019-02-25 2026-08-04 Henan Medinno Pharmaceutical Technology Co., Ltd. Solid forms of pharmaceutically acceptable salts of (S)-(2-ethyl-5-fluoro-4-hydroxyphenyl)-1H-indazol-3-yl)-4,6-dihydropyrrolo[3,4-d]imidazol-5(1H)-yl)(3-hydroxypyrrolidin-1-yl)methanone as JAK inhibitors
CN114075200A (zh) * 2020-08-14 2022-02-22 河南迈英诺医药科技有限公司 用于治疗重症肺炎的jak抑制剂化合物
UA130579C2 (uk) 2019-03-05 2026-03-25 Інсайт Корпорейшн Інгібітори шляхів jak1 для лікування хронічної дисфункції алотрансплантата легень
CA3129665A1 (en) 2019-03-21 2020-09-24 Onxeo A dbait molecule in combination with kinase inhibitor for the treatment of cancer
KR20220098759A (ko) 2019-11-08 2022-07-12 인쎄름 (엥스띠뛰 나씨오날 드 라 쌍떼 에 드 라 흐쉐르슈 메디깔) 키나제 억제제에 대해 내성을 획득한 암의 치료 방법
JP7580136B2 (ja) * 2019-12-30 2024-11-11 路良 Jak阻害剤化合物及びその使用
WO2021148581A1 (en) 2020-01-22 2021-07-29 Onxeo Novel dbait molecule and its use
KR20220149585A (ko) 2020-03-02 2022-11-08 세라밴스 바이오파마 알앤디 아이피, 엘엘씨 Jak 억제제 화합물의 결정성 수화물
TW202207934A (zh) * 2020-03-27 2022-03-01 瑞典商阿斯特捷利康公司 用於肺遞送的乾粉配製物及使用方法
WO2022178215A1 (en) * 2021-02-19 2022-08-25 Theravance Biopharma R&D Ip, Llc Amino amide tetrahydro imidazo pyridines as jak inhibitors
CA3212635A1 (en) 2021-03-26 2022-09-29 Theravance Biopharma R&D Ip, Llc Crystalline form of a dihydrochloride salt of a jak inhibitor compound
TW202317550A (zh) * 2021-06-25 2023-05-01 美商施萬生物製藥研發 Ip有限責任公司 作為jak抑制劑之咪唑吲唑化合物
CN114181055A (zh) * 2021-12-21 2022-03-15 苏州楚凯药业有限公司 1-苄氧基-4-溴-5-乙基-2-氟苯的制备方法
CN119403552A (zh) 2022-05-05 2025-02-07 施万生物制药研发Ip有限责任公司 用于通过雾化口腔吸入递送的奈珠西替尼

Family Cites Families (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI262914B (en) 1999-07-02 2006-10-01 Agouron Pharma Compounds and pharmaceutical compositions for inhibiting protein kinases
US7872014B2 (en) 2003-07-23 2011-01-18 Exelixis, Inc. Anaplastic lymphoma kinase modulators and methods of use
US20050090529A1 (en) 2003-07-31 2005-04-28 Pfizer Inc 3,5 Disubstituted indazole compounds with nitrogen-bearing 5-membered heterocycles, pharmaceutical compositions, and methods for mediating or inhibiting cell proliferation
US7884109B2 (en) 2005-04-05 2011-02-08 Wyeth Llc Purine and imidazopyridine derivatives for immunosuppression
DK2089369T3 (da) 2006-10-19 2011-05-09 Rigel Pharmaceuticals Inc 2,4-pyrimidindiaminderivater som hæmmere af JAK-kinaser til behandling af autoimmune sygdomme
US8648069B2 (en) 2007-06-08 2014-02-11 Abbvie Inc. 5-substituted indazoles as kinase inhibitors
AU2009259853A1 (en) 2008-06-20 2009-12-23 Genentech, Inc. Triazolopyridine JAK inhibitor compounds and methods
WO2010039825A2 (en) 2008-10-01 2010-04-08 Array Biopharma Inc. IMIDAZO[1,2-a]PYRIDINE COMPOUNDS AS RECEPTOR TYROSINE KINASE INHIBITORS
CL2009001884A1 (es) * 2008-10-02 2010-05-14 Incyte Holdings Corp Uso de 3-ciclopentil-3-[4-(7h-pirrolo[2,3-d]pirimidin-4-il)-1h-pirazol-1-il)propanonitrilo, inhibidor de janus quinasa, y uso de una composición que lo comprende para el tratamiento del ojo seco.
JP2010111624A (ja) 2008-11-06 2010-05-20 Shionogi & Co Ltd Ttk阻害作用を有するインダゾール誘導体
CA2756989A1 (en) 2009-04-03 2010-10-07 Douglas Burdi Compounds for treating disorders mediated by metabotropic glutamate receptor 5, and methods of use thereof
MX337849B (es) 2009-07-28 2016-03-09 Rigel Pharmaceuticals Inc Composiciones y metodos para inhibicion de la via jak.
SMT201700581T1 (it) * 2009-12-21 2018-01-11 Samumed Llc 1h-pirazolo[3,4-b]piridine e loro usi terapeutici
EP2338888A1 (en) 2009-12-24 2011-06-29 Almirall, S.A. Imidazopyridine derivatives as JAK inhibitors
JP5808818B2 (ja) 2010-11-25 2015-11-10 ラツィオファーム・ゲーエムベーハー アファチニブの新規塩及び多形形態
US8575336B2 (en) * 2011-07-27 2013-11-05 Pfizer Limited Indazoles
PH12017500997A1 (en) 2012-04-04 2018-02-19 Samumed Llc Indazole inhibitors of the wnt signal pathway and therapeutic uses thereof
TW201513861A (zh) * 2013-01-17 2015-04-16 Galapagos Nv 用於治療退化性及發炎疾病之新穎化合物
LT3077395T (lt) 2013-12-05 2018-02-12 Pfizer Inc. Pirolo[2,3-d]pirimidinilo, pirolo[2,3-b]pirazinilo ir pirolo[2,3-d]piridinilo akrilamidai
PE20161475A1 (es) 2014-05-14 2017-01-08 Pfizer Pirazolopiridinas y pirazolopirimidinas
WO2016026078A1 (en) 2014-08-19 2016-02-25 Changzhou Jiekai Pharmatech Co., Ltd. Heterocyclic compounds as erk inhibitors
KR101663277B1 (ko) 2015-03-30 2016-10-06 주식회사 녹십자 TNIK, IKKε 및 TBK1 억제제로서의 피라졸계 유도체 및 이를 포함하는 약학적 조성물
DK3712152T3 (da) 2015-11-03 2021-03-22 Topivert Pharma Ltd 4,5,6,7-tetrahydro-1h-imidazo[4,5-c]pyridin og 1,4,5,6,7,8-hexahydroimidazo[4,5-d]azepinderivater som janus kinase-inhibitorer
EP3831830A1 (en) 2015-11-03 2021-06-09 Topivert Pharma Limited 4,5,6,7-tetrahydro-1h-imidazo[4,5-c]pyridine and 1,4,5,6,7,8-hexahydroimidazo[4,5-d]azepine derivatives as janus kinase inhibitors
TWI710560B (zh) 2015-11-03 2020-11-21 美商施萬生物製藥研發Ip有限責任公司 用於治療呼吸疾病之jak激酶抑制劑化合物
TWI754019B (zh) 2017-03-09 2022-02-01 美商施萬生物製藥研發 Ip有限責任公司 含有4員雜環醯胺之jak抑制劑
EP3619208B1 (en) 2017-05-01 2023-06-07 Theravance Biopharma R&D IP, LLC Crystalline forms of a jak inhibitor compound
AU2018261588A1 (en) 2017-05-01 2019-10-31 Theravance Biopharma R&D Ip, Llc Methods of treatment using a JAK inhibitor compound
AR111495A1 (es) 2017-05-01 2019-07-17 Theravance Biopharma R&D Ip Llc Compuestos de imidazo-piperidina fusionada como inhibidores de jak
DK3837258T3 (da) 2018-09-04 2024-07-22 Theravance Biopharma R&D Ip Llc Dimethyl amino azetidine amides as jak inhibitors
BR112021004087A2 (pt) 2018-09-04 2021-05-25 Theravance Biopharma R&D Ip, Llc processo para preparar inibidores de jak e seus intermediários
BR112021004063A2 (pt) 2018-09-04 2021-05-25 Theravance Biopharma R&D Ip, Llc amidas heterocíclicas com 5 a 7 membros como inibidores de jak
EP3853229A1 (en) 2018-10-29 2021-07-28 Theravance Biopharma R&D IP, LLC 2-azabicyclo hexane compound as jak inhibitor
CA3212635A1 (en) 2021-03-26 2022-09-29 Theravance Biopharma R&D Ip, Llc Crystalline form of a dihydrochloride salt of a jak inhibitor compound

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190140062A (ko) * 2017-05-01 2019-12-18 세라밴스 바이오파마 알앤디 아이피, 엘엘씨 Jak 저해제 화합물을 사용하는 치료 방법

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CO2018005640A2 (es) 2018-05-31
JP6800969B2 (ja) 2020-12-16
US20190106420A1 (en) 2019-04-11
SA518391470B1 (ar) 2021-03-31
IL258772B (en) 2021-01-31
US10526330B2 (en) 2020-01-07
BR112018008966B1 (pt) 2023-05-02
US20170121327A1 (en) 2017-05-04
AU2016350816A1 (en) 2018-05-17
US20220306624A1 (en) 2022-09-29
BR112018008966A2 (pt) 2018-11-27
US20210130351A1 (en) 2021-05-06
CN108349972A (zh) 2018-07-31
US10100049B2 (en) 2018-10-16
IL258772A (en) 2018-06-28
US10913740B2 (en) 2021-02-09
TWI710560B (zh) 2020-11-21
NZ741737A (en) 2023-11-24
CA3001542C (en) 2021-02-16
US11718616B2 (en) 2023-08-08
CN108349972B (zh) 2021-06-08
JP2018531982A (ja) 2018-11-01
CL2018001145A1 (es) 2018-07-06
TW201726673A (zh) 2017-08-01
MX374605B (es) 2025-03-06
MY195427A (en) 2023-01-20
US11299492B2 (en) 2022-04-12
WO2017079205A1 (en) 2017-05-11
US20180319796A1 (en) 2018-11-08
MX2018005446A (es) 2018-08-01
HK1252685A1 (zh) 2019-05-31
UA123633C2 (uk) 2021-05-05
US20200087303A1 (en) 2020-03-19
ZA201802496B (en) 2025-01-29
PH12018500828B1 (en) 2023-06-30
EA201891091A1 (ru) 2018-12-28
EA034914B1 (ru) 2020-04-06
CA3001542A1 (en) 2017-05-11
AU2016350816B2 (en) 2020-06-25
US10183942B2 (en) 2019-01-22
PH12018500828A1 (en) 2018-10-29
EP3371186A1 (en) 2018-09-12

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