JP6936236B2 - 治療化合物、組成物及びその方法の使用 - Google Patents
治療化合物、組成物及びその方法の使用 Download PDFInfo
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- JP6936236B2 JP6936236B2 JP2018539129A JP2018539129A JP6936236B2 JP 6936236 B2 JP6936236 B2 JP 6936236B2 JP 2018539129 A JP2018539129 A JP 2018539129A JP 2018539129 A JP2018539129 A JP 2018539129A JP 6936236 B2 JP6936236 B2 JP 6936236B2
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- 125000002827 triflate group Chemical group FC(S(=O)(=O)O*)(F)F 0.000 description 1
- WTVXIBRMWGUIMI-UHFFFAOYSA-N trifluoro($l^{1}-oxidanylsulfonyl)methane Chemical group [O]S(=O)(=O)C(F)(F)F WTVXIBRMWGUIMI-UHFFFAOYSA-N 0.000 description 1
- 125000004044 trifluoroacetyl group Chemical group FC(C(=O)*)(F)F 0.000 description 1
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- YFTHZRPMJXBUME-UHFFFAOYSA-N tripropylamine Chemical compound CCCN(CCC)CCC YFTHZRPMJXBUME-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D487/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00
- C07D487/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00 in which the condensed system contains two hetero rings
- C07D487/04—Ortho-condensed systems
-
- 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
- A61P29/00—Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agents; Non-steroidal antiinflammatory drugs [NSAID]
-
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pulmonology (AREA)
- Veterinary Medicine (AREA)
- General Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Medicinal Chemistry (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Pharmacology & Pharmacy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Engineering & Computer Science (AREA)
- Pain & Pain Management (AREA)
- Rheumatology (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
- Pyridine Compounds (AREA)
Description
本発明の分野は、ヤヌスキナーゼ(例えば、JAK1)の阻害剤である化合物、並びにこれらの化合物を含有する組成物、及び限定されるものではないが、JAKキナーゼの阻害に応答性の症状を患っている患者の診断又は処置を含む方法の使用に関する。
サイトカイン経路は、炎症及び免疫の多くの態様を含む広い範囲の生物学的機能を媒介する。ヤヌスキナーゼ(JAK)(JAK1、JAK2、JAK3及びTYK2を含む)は、I型及びII型サイトカインレセプターと会合し、サイトカインシグナル伝達をレギュレーションする細胞質タンパク質キナーゼである。関連するレセプターにサイトカインが結合することは、レセプターに会合しているJAKの活性化の引き金となり、これにより、シグナル伝達性転写因子(STAT)タンパク質のJAK媒介性チロシンリン酸化がもたらされ、最終的に、特定の遺伝子セットの転写活性化につながる(非特許文献1)。JAK1、JAK2及びTYK2は、広いパターンの遺伝子発現を示す一方で、JAK3の発現は、白血球に限定されている。サイトカインレセプターは、典型的には、ヘテロ二量体として機能し、その結果として、1つ超の種類のJAKキナーゼが、通常、サイトカインレセプター複合体と会合する。異なるサイトカインレセプター複合体と会合する特定のJAKは、多くの場合において、遺伝学的研究により決定され、他の実験的証拠により裏付けられてきた。JAK酵素阻害の例示的な治療上の有益性は、例えば、特許文献1で検討されている。
本発明の一態様は、式(I):
で示される化合物、又はその塩
[式中:
R1は、C2〜C6アルケニル、C2〜C6アルキニル、−(C0〜C3アルキル)CN、−(C0〜C3アルキル)ORa、−(C0〜C3アルキル)Ra、−(C0〜C3アルキル)SRa、−(C0〜C3アルキル)NRaRb、−(C0〜C3アルキル)OCF3、−(C0〜C3アルキル)CF3、−(C0〜C3アルキル)NO2、−(C0〜C3アルキル)C(O)Ra、−(C0〜C3アルキル)C(O)ORa、−(C0〜C3アルキル)C(O)NRaRb、−(C0〜C3アルキル)NRaC(O)Rb、−(C0〜C3アルキル)S(O)1−2Ra、−(C0〜C3アルキル)NRaS(O)1−2Rb、−(C0〜C3アルキル)S(O)1−2NRaRb、−(C0〜C6アルキル)(5〜6−員ヘテロアリール)又は−(C0〜C6アルキル)フェニルであり、ここで、R1は、独立して、ハロゲン、C1〜C3アルキル、オキソ、−CF3、−(C0〜C3アルキル)ORc及び−(C0〜C3アルキル)NRcRdからなる群より選択される1つ以上の基により場合により置換されており;
Raは、独立して、水素、C1〜C6アルキル、C3〜C6シクロアルキル、3〜10員のヘテロシクリル、−C(O)Rc、−C(O)ORc、−C(O)NRcRd、−NRcC(O)Rd、−S(O)1−2Rc、−NRcS(O)1−2Rd又は−S(O)1−2NRcRdであり、ここで、Raの任意のC3〜C6シクロアルキル及び3〜10員のヘテロシクリルは、1つ以上の基Reで場合により置換されており;
Rbは、独立して、水素又はC1〜C3アルキルであり、ここで、該アルキルは、独立して、ハロゲン及びオキソからなる群より選択される1つ以上の基により場合により置換されており;
Rc及びRdは、独立して、水素、3〜6員のヘテロシクリル、C3〜C6シクロアルキル及びC1〜C3アルキルからなる群より選択され、ここで、Rc及びRdの任意の3〜6員のヘテロシクリル、C3〜C6シクロアルキル及びC1〜C3アルキルは、独立して、ハロゲン及びオキソからなる群より選択される1つ以上の基により場合により置換されているか;或いは、Rc及びRdは、それらが結合している原子と一緒になって、独立して、ハロゲン、オキソ、−CF3及びC1〜C3アルキルからなる群より選択される1つ以上の基により場合により置換されている3〜6員のヘテロシクリルを形成し;
各Reは、独立して、オキソ、ORf、NRfRg、ハロゲン、3〜10員のヘテロシクリル、C3〜C6シクロアルキル及びC1〜C6アルキルからなる群より選択され、ここで、Reの任意のC3〜C6シクロアルキル及びC1〜C6アルキルは、独立して、ORf、NRfRg、ハロゲン、3〜10員のヘテロシクリル、オキソ及びシアノからなる群より選択される1つ以上の基により場合により置換されており、ここで、Reの任意の3〜10員のヘテロシクリル、及びReのC3〜C6シクロアルキル又はC1〜C6アルキル上に置換されている任意の3〜10員のヘテロシクリル基は、独立して、ハロゲン、オキソ、シアノ、−CF3、NRhRk、3〜6員のヘテロシクリル、並びに、独立して、ハロゲン、オキソ、ORf及びNRhRkからなる群より選択される1つ以上の基により場合により置換されているC1〜C3アルキルからなる群より選択される1つ以上の基により場合により置換されており;
Rf及びRgは、それぞれ独立して、水素、C1〜C6アルキル、3〜6員のヘテロシクリル及びC3〜C6シクロアルキルからなる群より選択され、ここで、Rf及びRgの任意のC1〜C6アルキル、3〜6員のヘテロシクリル及びC3〜C6シクロアルキルは、1つ以上のRmにより場合により置換されており;
Rh及びRkは、それぞれ独立して、水素及びC1〜C6アルキル(独立して、ハロゲン、シアノ、3〜6員のヘテロシクリル及びオキソからなる群より選択される1つ以上の基により場合により置換されている)からなる群より選択されるか;或いは、Rh及びRkは、それらが結合している原子と一緒になって、独立して、ハロゲン、シアノ、オキソ、−CF3及びC1〜C3アルキル(独立して、ハロゲン及びオキソからなる群より選択される1つ以上の基により場合により置換されている)からなる群より選択される1つ以上の基により場合により置換されている3〜6員のヘテロシクリルを形成し;
各Rmは、独立して、ハロゲン、シアノ、オキソ、C3〜C6シクロアルキル、ヒドロキシ及びNRhRkからなる群より選択され、ここで、Rmの任意のC3〜C6シクロアルキルは、独立して、ハロゲン、オキソ、シアノ及びC1〜C3アルキルからなる群より選択される1つ以上の基で場合により置換されており;
R2は、フェニル、C3〜C6シクロアルキル又は3〜10員のヘテロシクリルであり、ここで、R2は、1〜5個のRnにより場合により置換されており;
各Rnは、独立して、C1〜C6アルキル、C2〜C6アルケニル、C2〜C6アルキニル、オキソ、ハロゲン、−(C0〜C3アルキル)CN、−(C0〜C3アルキル)ORo、−(C0〜C3アルキル)SRo、−(C0〜C3アルキル)NRoRp、−(C0〜C3アルキル)OCF3、−(C0〜C3アルキル)CF3、−(C0〜C3アルキル)NO2、−(C0〜C3アルキル)C(O)Ro、−(C0〜C3アルキル)C(O)ORo、−(C0〜C3アルキル)C(O)NRoRp、−(C0〜C3アルキル)NRoC(O)Rp、−(C0〜C3アルキル)S(O)1−2Ro、−(C0〜C3アルキル)NRoS(O)1−2Rp、−(C0〜C3アルキル)S(O)1−2NRoRp、−(C0〜C3アルキル)(C3〜C6シクロアルキル)、−(C0〜C3アルキル)(3〜6員ヘテロシクリル)、−(C0〜C3アルキル)C(O)(3〜6員ヘテロシクリル)又は−(C0〜C3アルキル)フェニルであり、ここで、R5は、独立して、ハロゲン、C1〜C3アルキル、オキソ、−CF3、−(C0〜C3アルキル)ORr又は−(C0〜C3アルキル)NRrRsにより場合により置換されているか;或いは、2つのRnは一緒になって、−O(CH2)1−3O−を形成し;
R3は、H、ハロゲン、シアノ、C1〜C3アルキル、C2〜C3アルケニル、C2〜C3アルキニル、−NH2又は−ORtであり;
R4は、H、ハロゲン、シアノ、C1〜C3アルキル、C2〜C3アルケニル、C2〜C3アルキニル、−NH2又は−ORtであり;
R5は、H、ハロゲン、シアノ、C1〜C3アルキル、C2〜C3アルケニル、C2〜C3アルキニル、−NH2又は−ORtであり;
R6は、H、ハロゲン、シアノ、C1〜C3アルキル、C2〜C3アルケニル、C2〜C3アルキニル、−NH2又は−ORtであり;
Roは、独立して、水素、C1〜C6アルキル、C2〜C6アルケニル、C2〜C6アルキニル、C3〜C6シクロアルキル、3〜6員のヘテロシクリル、(C3〜C6シクロアルキル)C1〜C6アルキル、(3〜6員ヘテロシクリル)C1〜C6アルキル、−C(O)(C3〜C6シクロアルキル)又は−C(O)(3〜6員ヘテロシクリル)、−C(O)Rr、−C(O)ORr、−C(O)NRrRs、−NRrC(O)Rs、−S(O)1−2Rr、−NRrS(O)1−2Rs又は−S(O)1−2NRrRsであり、ここで、該アルキル、シクロアルキル及びヘテロシクリルは、独立して、オキソ、C1〜C3アルキル、ORr、NRrRs又はハロゲンにより場合により置換されており;
Rpは、独立して、水素又はC1〜C3アルキルであり、ここで、該アルキルは、独立して、ハロゲン又はオキソにより場合により置換されているか;
或いは、Ro及びRpは、それらが結合している原子と一緒になって、ハロゲン、オキソ又はC1〜C3アルキル(ハロゲンにより場合により置換されている)により場合により置換されている3〜6員のヘテロシクリルを形成し;
Rr及びRsは、独立して、水素又はハロゲン若しくはオキソにより場合により置換されているC1〜C3アルキルであるか;或いは、Rr及びRsは、それらが結合している原子と一緒になって、ハロゲン、オキソ又はC1〜C3アルキル(ハロゲンにより場合により置換されている)により場合により置換されている3〜6員のヘテロシクリルを形成し;そして、
各Rtは、独立して、H、C1〜C6アルキル、C2〜C6アルケニル、C2〜C6アルキニル又は−(C0〜C3アルキル)フェニルである]
である、本発明の化合物を含む。
定義
「ハロゲン」又は「ハロ」は、F、Cl、Br又はIを指す。加えて、例えば、「ハロアルキル」という用語は、モノハロアルキル及びポリハロアルキルを含むように意味する。
は、該化学構造において波状結合が接続されている原子の、分子の残部への又は分子の断片の残部への結合点を示す。幾つかの実施態様では、アスタリスクと一緒の矢印が、結合点を示すために波線のように用いられる。
実施例1〜13から選択される化合物及びその塩も提供される。
本発明の化合物を、本明細書中で記載された合成経路により合成してもよい。特定の実施態様では、本明細書中に含有される説明に加えて、又は同説明を考慮して、化学分野において周知のプロセスを使用することができる。出発材料は、商業的な供給元、例えば、Aldrich Chemicals(Milwaukee, Wis.)から一般に入手できるか、又は当業者に周知の方法を使用して容易に調製される(例えば、Louis F. Fieser and Mary Fieser, Reagents for Organic Synthesis, v. 1-19, Wiley, N.Y. (1967-1999 ed.) Beilsteins Handbuch der organischen Chemie, 4, Aufl. ed. Springer-Verlag, Berlin(補足を含む)(Beilsteinオンラインデータベースを介しても入手できる)又はComprehensive Heterocyclic Chemistry, Editors Katrizky and Rees, Pergamon Press, 1984に一般的に記載されている方法により調製される)。
(1)カルボン酸をアミンと反応させてアミドを形成すること。このような変換を当業者に公知の種々の試薬を使用して達成することができるが、包括的なレビューは、Tetrahedron, 2005, 61, 10827-10852に見出すことができる。
(2)一級又は二級アミンをアリールハロゲン化物又は擬ハロゲン化物(例えば、トリフラート)と反応させること(「Buchwald−Hartwigクロスカップリング」として一般に公知)は、様々な触媒、リガンド及び塩基を使用して達成することができる。これらの方法のレビューは、Comprehensive Organic Name Reactions and Reagents, 2010, 575-581に提供される)。
(3)アリールハロゲン化物とビニルボロン酸又はボロナートエステルとの間でのパラジウムクロスカップリング反応。この変換は、ある種の「Suzuki−Miyauraクロスカップリング」であり、Chemical Reviews, 1995, 95(7), 2457-2483に十分にレビューされている分類の反応である。
(4)エステルを加水分解して、対応するカルボン酸を得ることは、当業者に周知であり、条件は:メチル及びエチルエステルについて、水性の強塩基(例えば、リチウム、ナトリウム若しくはカリウムの水酸化物、又は水性の強鉱酸(例えば、HCl)を使用すること;tert−ブチルエステルについて、加水分解は、ジオキサン中の酸(例えば、HCl)又はジクロロメタン(DCM)中のトリフルオロ酢酸(TFA)を使用して行われることを含む。
スキーム1に示されたように、タイプ1の化合物からニトロ還元によって、タイプ2の化合物にアクセスしてもよい。2と3との間でのアミド結合形成により、タイプ4の化合物が提供され、次いで、これを、酸性条件下で脱保護して、タイプ5の化合物を得てもよい。適切な求電子剤及び塩基によるピラゾールのアルキル化により、タイプ6の化合物が提供される。
スキーム2に示されたように、フェノール(例えば、1)を2−クロロ−2,2−ジフルオロ酢酸ナトリウムとともに、塩基及び熱の存在下、適切な溶媒中で処理することによって、タイプ2の化合物にアクセスしてもよい。2と3との間でのPd媒介性カップリングにより、タイプ4の化合物が提供される。ニトロ還元により、5が提供され、これをタイプ6の化合物に適切なアミド結合形成条件下でカップリングして、7を提供してもよい。7をPd媒介性チオール置換により、8に変換してもよく、次いで、8を酸性条件での処理により、9に変換することができる。
スキーム3に示されたように、タイプ1の化合物のPd媒介性チオール置換によって、タイプ2の化合物にアクセスしてもよい。ニトロ還元により、タイプ5bの化合物が提供され、次いで、これをタイプ6の化合物に適切なアミド結合形成条件下でカップリングさせて、タイプ7の化合物を提供してもよい。酸性脱保護により、タイプ8の化合物が提供される。
スキーム4に示されたように、塩基の存在下、適切な求電子剤を用いたピラゾールのアルキル化により、タイプ2の化合物にアクセスしてもよい。酸性脱保護、続けて、アミド結合形成により、タイプ4の化合物が提供される。
スキーム5に示されたように、ハロアセチルハロゲン化物(haloacetayl halides)と適切なアミンとの反応により、タイプ3の化合物にアクセスしてもよい。塩基の存在下における3と1との組み合わせにより、ピラゾールのアルキル化がもたらされ、タイプ4の化合物を提供する。
スキーム6に示されたように、塩基の存在下、適切な求電子剤を用いてタイプ1のピラゾールをアルキル化することによって、タイプ2の化合物にアクセスしてもよい。アミン脱保護、続けて、アルキル化又は還元的アミノ化により、タイプ4の化合物が提供された。
方法A
実験をShim−Pack XR−ODSカラム(50×3mm、粒径2.2μm)を備えたSHIMADZU 20A HPLCにおいて、溶媒A:水+0.05%トリフルオロ酢酸;溶媒B:アセトニトリル+0.05%トリフルオロ酢酸による溶離により行った。勾配:
実験をShim−Pack XR−ODSカラム(50×3mm、粒径2.2μm)を備えたSHIMADZU 20A HPLCにおいて、溶媒A:水+0.05%トリフルオロ酢酸;溶媒B:アセトニトリル+0.05%トリフルオロ酢酸による溶離により行った。勾配:
実験をAscentis Express C18カラム(30×2.1mm、粒径2.7μm)を備えたSHIMADZU 20A HPLCにおいて、溶媒A:水+0.05%トリフルオロ酢酸;溶媒B:アセトニトリル+0.05%トリフルオロ酢酸による溶離により行った。勾配:
実験をShim−Pack XR−ODSカラム(50×3mm、粒径2.2μm)を備えたSHIMADZU 20A HPLCにおいて、溶媒A:水+0.05%トリフルオロ酢酸;溶媒B:アセトニトリル+0.05%トリフルオロ酢酸による溶離により行った。勾配:
実験をPoroshell HPH−C18カラム(50×3mm、粒径2.7μm)を備えたSHIMADZU 20A HPLCにおいて、溶媒A:水/5mM NH4HCO3;溶媒B:アセトニトリルによる溶離により行った。勾配:
実験をAscentis Express C18カラム(30×2.1mm、粒径2.7μm)を備えたSHIMADZU 20A HPLCにおいて、溶媒A:水+0.05%トリフルオロ酢酸;溶媒B:アセトニトリル+0.05%トリフルオロ酢酸による溶離により行った。勾配:
実験をAscentis Express C18カラム(30×2.1mm、粒径2.7μm)を備えたSHIMADZU 20A HPLCにおいて、溶媒A:水+0.05%トリフルオロ酢酸;溶媒B:アセトニトリル+0.05%トリフルオロ酢酸による溶離により行った。勾配:
実験をAscentis Express C18カラム(30×2.1mm、粒径2.7μm)を備えたSHIMADZU 20A HPLCにおいて、溶媒A:水+0.05%トリフルオロ酢酸;溶媒B:アセトニトリル+0.05%トリフルオロ酢酸による溶離により行った。勾配:
実験をShim−Pack XR−ODSカラム(50×3mm、粒径2.2μm)を備えたSHIMADZU 20A HPLCにおいて、溶媒A:水+0.05%トリフルオロ酢酸;溶媒B:アセトニトリル+0.05%トリフルオロ酢酸による溶離により行った。勾配:
実験をC18−逆相カラム(50×3mm Xtimate TM−C18、粒径2.2μm)を備えたSHIMADZU 20A HPLC、移動相:溶媒A:水+0.1%ギ酸;溶媒B:アセトニトリル+0.05%ギ酸において行った。勾配:
実験をイオン化源としてESIを使用するAgilent MSD(6140)質量分光器と接続したAgilent 1290 UHPLCにおいて行った。LC分離をPhenomenex XB−C18 1.7mm、50×2.1mmカラム(流速0.4mL/分で)を使用して行った。溶媒Aは、0.1%ギ酸を含む水とし、溶媒Bは、0.1%ギ酸を含むアセトニトリルとする。勾配は、7分にわたる2〜98%の溶媒B、そして、1.5分間 98%のB保持、その後、1.5分間平衡とした。LCカラム温度は、40℃とする。UV吸光度を220nm及び254nmで集め、質量スペクトルの全スキャンを全ての実験に適用した。
N−[3−[5−クロロ−2−(ジフルオロメトキシ)フェニル]−1−(2−[4−[メチル(オキセタン−3−イル)アミノ]ピペリジン−1−イル]−2−オキソエチル)−1H−ピラゾール−4−イル]イミダゾ[1,2−b]ピリダジン−3−カルボキサミド
2−ブロモアセチルブロミド(285mg、1.41mmol)のジクロロメタン(4.0mL)中溶液を、N−メチル−N−(オキセタン−3−イル)ピペリジン−4−アミン(200mg、1.18mmol)のジクロロメタン(10mL)及び飽和炭酸ナトリウム(10mL)中混合物に0℃で滴下して加えた。次に、反応混合物を室温で1時間撹拌した。相を分離した。水相をジクロロメタン(3×30mL)で抽出し、有機層を合わせた。有機層をブラインで洗浄し、無水硫酸ナトリウムで乾燥して、減圧下で濃縮した。これにより、2−ブロモ−1−[4−[メチル(オキセタン−3−イル)アミノ]ピペリジン−1−イル]エタン−1−オン(200mg)を淡黄色の固体として得、これを精製しないで用いた。
N−[3−[5−クロロ−2−(ジフルオロメトキシ)フェニル]−1H−ピラゾール−4−イル]−6−エチニル−イミダゾ[1,2−b]ピリダジン−3−カルボキサミド
6−クロロイミダゾ[1,2−b]ピリダジン−3−カルボン酸(500mg、2.53mmol)のDMF(10ml)中溶液に、HATU(1060mg、2.78mmol)、DIPEA(1330mg、10.1mmol)及び5−[5−クロロ−2−(ジフルオロメトキシ)フェニル]−1−(2−トリメチルシリルエトキシメチル)ピラゾール−4−アミン(987mg、2.53mmol)を加えた。得られた溶液を室温で1時間撹拌した。得られた混合物を減圧下で濃縮した。残留物をヘプタン/酢酸エチル(100/0〜0/100)で溶離するシリカゲルのフラッシュクロマトグラフィーにより精製して、6−クロロ−N−[5−[5−クロロ−2−(ジフルオロメトキシ)フェニル]−1−(2−トリメチルシリルエトキシメチル)ピラゾール−4−イル]イミダゾ[1,2−b]ピリダジン−3−カルボキサミド(17mg(20%))を固体として得た。LC/MS(方法J、ESI):[M+H]+=569.0、RT=1.65分;
N−[3−[5−クロロ−2−(ジフルオロメトキシ)フェニル]−1−[2−[4−(モルホリン−4−イル)ピペリジン−1−イル]−2−オキソエチル]−1H−ピラゾール−4−イル]イミダゾ[1,2−b]ピリダジン−3−カルボキサミド
N−[3−[5−クロロ−2−(ジフルオロメトキシ)フェニル]−1H−ピラゾール−4−イル]イミダゾ[1,2−b]ピリダジン−3−カルボキサミド(130mg、0.321mmol)のN,N−ジメチルホルムアミド(18mL)中溶液に、Cs2CO3(300mg、0.921mmol)及び2−ブロモ−1−[4−(モルホリン−4−イル)ピペリジン−1−イル]エタン−1−オン(130mg、0.446mmol)を加えた。反応混合物を65℃で3時間撹拌し、室温まで冷めるにまかせた。水(30mL)を加えた。得られた溶液を酢酸エチル(3×50mL)で抽出し、有機層を合わせた。有機抽出物をブラインで洗浄し、無水硫酸ナトリウムで乾燥して、減圧下で濃縮した。残留物を、以下の条件[カラム:XBridge Prep C18 OBD Column、5um、19*150mm;移動相A:水(0.1% NH4HCO3)、移動相B:ACN;流速:30mL/分;勾配:8分で25%のB〜45%のB;254/220nm;検出器]で分取HPLCにより精製して、N−[3−[5−クロロ−2−(ジフルオロメトキシ)フェニル]−1−[2−[4−(モルホリン−4−イル)ピペリジン−1−イル]−2−オキソエチル]−1H−ピラゾール−4−イル]イミダゾ[1,2−b]ピリダジン−3−カルボキサミド(32.7mg(17%))を白色の固体として得た。LC/MS(方法A、ESI):[M+H]+=615.3、RT=1.39分;1H NMR (400 MHz, CD3OD-d4): δ (ppm) 8.58 (dd, J = 4.8, 1.6 Hz, 1H), 8.47 (s, 1H), 8.43 (s, 1H), 8.27 (dd, J = 9.4, 1.6 Hz, 1H), 7.72 (d, J = 2.8 Hz, 1H), 7.60 (dd, J = 8.8, 2.8 Hz, 1H), 7.52 - 7.47 (m, 2H), 6.81 (t, J = 73.6 Hz, 1H), 5.34 (d, J = 16.0 Hz, 1H), 5.23 (d, J = 16.4 Hz, 1H), 4.59 - 4.55 (m, 1H), 4.11 - 4.08 (m, 1H), 3.72 (t, J = 4.4 Hz, 4H), 3.25 - 3.19 (m, 1H), 2.84 - 2.79 (m, 1H), 2.63 (t, J = 4.4 Hz, 4H), 2.58 - 2.52 (m, 1H), 2.01 - 1.98 (m, 2H), 1.57 - 1.47 (m, 2H)。
N−[3−[5−クロロ−2−(ジフルオロメトキシ)フェニル]−1−[2−(4−[[(1−シアノシクロプロピル)−メチル]アミノ]ピペリジン−1−イル)−2−オキソエチル]−1H−ピラゾール−4−イル]イミダゾ[1,2−b]ピリダジン−3−カルボキサミド
4−オキソピペリジン−1−カルボン酸tert−ブチル(300mg、1.51mmol)のジクロロメタン(30mL)中溶液に、1−(アミノメチル)シクロプロパン−1−カルボニトリル塩酸塩(216mg、1.63mmol)及びNaOAc(120mg、1.46mmol)を加えた。得られた溶液を室温で2時間撹拌した。次に、NaBH(OAc)3(636mg、3.00mmol)を加えた。反応混合物を室温で3時間撹拌し、次に、飽和炭酸ナトリウム(50mL)を加えた。相を分離し、水相をジクロロメタン(3×50mL)で抽出して、有機層を合わせた。有機相を無水硫酸ナトリウムで乾燥し、減圧下で濃縮して、4−[[(1−シアノシクロプロピル)メチル]アミノ]ピペリジン−1−カルボン酸tert−ブチル(300mg)を無色の油状物として得た。LC/MS(方法H、ESI):[M+H]+=280.1、RT=0.55分。
N−[1−(2−アミノエチル)−3−[5−クロロ−2−(ジフルオロメトキシ)フェニル]−1H−ピラゾール−4−イル]イミダゾ[1,2−b]ピリダジン−3−カルボキサミド
N−[3−[5−クロロ−2−(ジフルオロメトキシ)フェニル]−1H−ピラゾール−4−イル]イミダゾ[1,2−b]ピリダジン−3−カルボキサミド(200mg、0.494mmol)のN,N−ジメチルホルムアミド(10mL)中溶液に、N−(2−ブロモエチル)カルバミン酸tert−ブチル(120mg、0.535mmol)及びCs2CO3(320mg、0.982mmol)を加えた。反応混合物を60℃で4時間撹拌し、室温まで冷めるにまかせた。水(100mL)を加えた。得られた混合物を酢酸エチル(3×100mL)で抽出し、有機層を合わせた。有機層をブラインで洗浄し、無水硫酸ナトリウムで乾燥して、減圧下で濃縮した。残留物を酢酸エチル及び石油エーテルの勾配(0〜40% 酢酸エチル)で溶離するシリカゲルのフラッシュクロマトグラフィーにより精製した。適切な画分を合わせ、減圧下で濃縮して、N−(2−[3−[5−クロロ−2−(ジフルオロメトキシ)フェニル]−4−[イミダゾ[1,2−b]ピリダジン−3−アミド]−1H−ピラゾール−1−イル]エチル)カルバミン酸tert−ブチル(200mg(74%))を黄色の固体として得た。LC/MS(方法H、ESI):[M+H]+=548.1、RT=0.91分。
N−[3−[5−クロロ−2−(ジフルオロメトキシ)フェニル]−1−メチル−1H−ピラゾール−4−イル]イミダゾ[1,2−b]ピリダジン−3−カルボキサミド
5−[5−クロロ−2−(ジフルオロメトキシ)フェニル]−4−ニトロ−1−[[2−(トリメチルシリル)エトキシ]メチル]−1H−ピラゾール(4.60g、11.0mmol)のエタノール(50mL)及び水(5mL)中溶液に、鉄粉末(6.12g、110mmol)及びNH4Cl(2.93g、54.78mmol)を加えた。得られた混合物を窒素下、還流下で3時間撹拌し、室温まで冷めるにまかせた。固体を濾別し、EtOHで洗浄した。濾液を減圧下で濃縮した。残留物をEtOAcとブラインとの間で分配した。有機相を無水硫酸ナトリウムで乾燥し、減圧下で濃縮して、5−[5−クロロ−2−(ジフルオロメトキシ)フェニル]−1−[[2−(トリメチルシリル)エトキシ]メチル]−1H−ピラゾール−4−アミン(4.01g(94%))を黄色の油状物として得た。LC/MS(方法H、ESI):[M+H]+=390.1、RT=0.89分。
N−[3−[5−(シクロプロピルスルファニル)−2−(ジフルオロメトキシ)フェニル]−1H−ピラゾール−4−イル]イミダゾ[1,2−b]ピリダジン−3−カルボキサミド
シクロプロパンチオール(46.0mg、0.620mmol)のトルエン(15mL)中溶液に、水素化ナトリウム(24.0mg、1.00mmol)を窒素下で加えた。得られた溶液を窒素下、室温で1時間撹拌した。
N−[3−[2−(ジフルオロメトキシ)−5−(プロパン−2−イルスルファニル)フェニル]−1H−ピラゾール−4−イル]イミダゾ[1,2−b]ピリダジン−3−カルボキサミド
鉄粉末(480mg、8.60mmol)及びNH4Cl(250mg)を、5−[5−ブロモ−2−(ジフルオロメトキシ)フェニル]−4−ニトロ−1−[[2−(トリメチルシリル)エトキシ]メチル]−1H−ピラゾール(400mg、0.861mmol)のエタノール(20mL)及び水(2mL)中溶液に加えた。反応混合物を窒素下、還流下で3時間撹拌した。固体を濾別し、エタノールで洗浄した。濾液を減圧下で濃縮した。残留物をEtOAcとブラインとの間で分配した。有機相を無水硫酸ナトリウムで乾燥し、減圧下で濃縮した。これにより、5−[5−ブロモ−2−(ジフルオロメトキシ)フェニル]−1−[[2−(トリメチルシリル)エトキシ]メチル]−1H−ピラゾール−4−アミン(400mg)(粗製物)を淡黄色の油状物として得た。LC/MS(方法H、ESI):[M+H]+=434.0、RT=0.90分。
N−[3−[2−(ジフルオロメトキシ)−5−(メチルスルファニル)フェニル]−1−[2−[4−([4−[(ジメチルカルバモイル)メチル]ピペラジン−1−イル]メチル)ピペリジン−1−イル]−2−オキソエチル]−1H−ピラゾール−4−イル]ピラゾロ[1,5−a]ピリミジン−3−カルボキサミド
N,N−ジメチル−2−[4−(ピペリジン−4−イルメチル)ピペラジン−1−イル]アセトアミド(300mg、1.12mmol)のジクロロメタン(10mL)及び飽和炭酸ナトリウム(3.8mL)中溶液に、2−ブロモアセチルブロミド(335mg、1.66mmol)を、内部温度を5℃未満に保持する速度で氷浴冷却下で滴下して加えた。得られた溶液を氷水浴冷却下で1時間撹拌した。得られた溶液をジクロロメタン(3×50mL)で抽出し、有機層を合わせた。有機層をブラインで洗浄し、無水硫酸ナトリウムで乾燥して、減圧下で加熱しないで濃縮した。これにより、2−(4−[[1−(2−ブロモアセチル)ピペリジン−4−イル]メチル]ピペラジン−1−イル)−N,N−ジメチルアセトアミド(300mg)を黄色の油状物として得、これを更に精製することなく用いた。LC/MS(方法H、ESI):[M+H]+=389.2、RT=0.17分。
N−[3−[5−クロロ−2−(ジフルオロメトキシ)フェニル]−1−(2−[4−[2−(モルホリン−4−イル)エチル]ピペラジン−1−イル]−2−オキソエチル)−1H−ピラゾール−4−イル]イミダゾ[1,2−b]ピリダジン−3−カルボキサミド
氷浴冷却下、4−[2−(ピペラジン−1−イル)エチル]モルホリン(200mg、1.00mmol)、ジクロロメタン(10mL)、飽和炭酸ナトリウム(4.2mL)の撹拌した混合物に、2−ブロモアセチルブロミド(243mg、1.20mmol)を、内部温度を5℃未満に保持する速度で滴下して加えた。次に、反応混合物を室温で更に30分撹拌した。相を分離し、水相をジクロロメタン(3×20mL)で抽出して、有機層を合わせた。有機層をブラインで洗浄し、無水硫酸ナトリウムで乾燥し、減圧下で濃縮して、粗製の2−ブロモ−1−[4−[2−(モルホリン−4−イル)エチル]ピペラジン−1−イル]エタン−1−オン(200mg)を得、これを更に精製することなくすぐに次の工程に用いた。LC/MS(方法H、ESI):[M+H]+=320.1、RT=0.28分。
鉄粉末(647mg)及びNH4Cl(310mg、5.79mmol)を、5−[2−(ジフルオロメトキシ)−5−(メチルスルファニル)フェニル]−4−ニトロ−1−[[2−(トリメチルシリル)エトキシ]メチル]−1H−ピラゾール(500mg、1.16mmol)のエタノール(10mL)及び水(1.0mL)中溶液に加えた。反応混合物を窒素下、還流下で4時間撹拌し、室温まで冷めるにまかせた。固体を濾別し、エタノールで洗浄した。濾液を減圧下で濃縮した。残留物をEtOAcとブラインとの間で分配した。有機相を無水硫酸ナトリウムで乾燥し、減圧下で濃縮して、5−[2−(ジフルオロメトキシ)−5−(メチルスルファニル)フェニル]−1−[[2−(トリメチルシリル)エトキシ]メチル]−1H−ピラゾール−4−アミン(400mg)を淡黄色の油状物として得た。LC/MS(方法H、ESI):[M+H]+=402.0、RT=0.80分。
JAK酵素アッセイを以下のように行った:
単離されたリコンビナントJAK1及びJAK2キナーゼドメインの活性を、Caliper LabChip(登録商標)技術(Caliper Life Sciences, Hopkinton, MA)を使用して、JAK3から得られたペプチド(5−カルボキシフルオレセインを用いてN末端に蛍光ラベルしたVal−Ala−Leu−Val−Asp−Gly−Tyr−Phe−Arg−Leu−Thr−Thr)のリン酸化をモニタリングすることにより測定した。阻害定数(Ki)を決定するために、化合物をDMSO中で系列希釈し、DMSO終濃度2%で、キナーゼ反応物(精製酵素(1.5nM JAK1又は0.2nM JAK2)、100mM HEPESバッファー(pH7.2)、0.015% Brij−35、1.5μM ペプチド基質、ATP(25μM)、10mM MgCl2、4mM DTTを含有する) 50μLに加えた。反応物を22℃で384ウェルのポリプロピレンマイクロタイタープレートにおいて30分間インキュベーションし、次いで、EDTA含有溶液(100mM HEPESバッファー(pH7.2)、0.015% Brij−35、150mM EDTA) 25μLの添加により停止させ、EDTAの終濃度を50mMにした。キナーゼ反応の終了後、リン酸化生成物の割合を、Caliper LabChip(登録商標)3000を使用し、製造元の仕様書に従って、総ペプチド基質の百分率として決定した。次いで、Ki値をATP競合阻害用に改変されたMorrison tight bindingモデル(Morrison, J.F., Biochim. Biophys. Acta. 185:269-296 (1969);William, J.W. and Morrison, J.F., Meth. Enzymol., 63:437-467 (1979))を使用して決定した[Ki=Ki,app/(1+[ATP]/Km,app)]。
阻害活性(EC50)を、JAK1依存性STATリン酸化を測定するように設計された細胞系アッセイにおいて決定した。上記されたように、Jak/Statシグナル伝達経路を遮断することによるIL−4、IL−13及びIL−9シグナル伝達の阻害により、前臨床肺炎症モデルにおける喘息症候を緩和することができる(非特許文献13、14)。
Claims (13)
- 請求項1若しくは2記載の化合物又はその薬学的に許容し得る塩を含む、医薬組成物。
- 治療において使用するための、請求項3項記載の医薬組成物。
- 炎症性疾患を処置するための、請求項3記載の医薬組成物。
- 炎症性疾患が喘息である、請求項5記載の医薬組成物。
- 炎症性疾患を処置するための医薬を調製するための、請求項1若しくは2記載の化合物又はその薬学的に許容し得る塩の使用。
- 炎症性疾患が喘息である、請求項7記載の使用。
- 炎症性疾患を処置するための、請求項1若しくは2記載の化合物又はその薬学的に許容し得る塩。
- 炎症性疾患が、喘息である、請求項9記載の化合物又はその薬学的に許容し得る塩。
- ヤヌスキナーゼ活性の阻害に応答性の疾患又は症状の予防、処置又は重症度の低減のための、請求項1若しくは2記載の化合物又はその薬学的に許容し得る塩を含む医薬組成物。
- 疾患又は症状が、喘息である、請求項11記載の医薬組成物。
- ヤヌスキナーゼが、JAK1である、請求項11記載の医薬組成物。
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MX2010014005A (es) | 2008-06-20 | 2011-02-15 | Genentech Inc | Compuestos de triazolopiridina inhibidores de jak y los metodos. |
UA110324C2 (en) * | 2009-07-02 | 2015-12-25 | Genentech Inc | Jak inhibitory compounds based on pyrazolo pyrimidine |
US8575336B2 (en) | 2011-07-27 | 2013-11-05 | Pfizer Limited | Indazoles |
US9428511B2 (en) * | 2012-09-06 | 2016-08-30 | Bristol-Myers Squibb Company | Imidazopyridazine JAK3 inhibitors and their use for the treatment of inflammatory and autoimmune diseases |
CA2929316C (en) * | 2013-11-08 | 2021-12-28 | Takeda Pharmaceutical Company Limited | Pyrazole for the treatment autoimmune disorders |
MX2016015062A (es) * | 2014-05-23 | 2017-02-27 | Hoffmann La Roche | Compuestos de 5-cloro-2-difluorometoxifenil pirazolopirimidina los cuales son inhibidores de janus cinasas (jak). |
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2017
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- 2017-02-17 CN CN201780005254.4A patent/CN108473501B/zh active Active
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- 2017-02-17 EP EP17705622.3A patent/EP3416967B1/en active Active
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2018
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2019
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US20180354959A1 (en) | 2018-12-13 |
CN108473501B (zh) | 2021-07-16 |
US11795170B2 (en) | 2023-10-24 |
JP2019505529A (ja) | 2019-02-28 |
US20210009599A1 (en) | 2021-01-14 |
EP3416967A1 (en) | 2018-12-26 |
HK1259372A1 (zh) | 2019-11-29 |
CN108473501A (zh) | 2018-08-31 |
EP3416967B1 (en) | 2022-02-09 |
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