JP6722895B2 - カスパーゼ1活性化阻害剤 - Google Patents
カスパーゼ1活性化阻害剤 Download PDFInfo
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- JP6722895B2 JP6722895B2 JP2017514157A JP2017514157A JP6722895B2 JP 6722895 B2 JP6722895 B2 JP 6722895B2 JP 2017514157 A JP2017514157 A JP 2017514157A JP 2017514157 A JP2017514157 A JP 2017514157A JP 6722895 B2 JP6722895 B2 JP 6722895B2
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- 230000000171 quenching effect Effects 0.000 description 1
- 238000002415 sodium dodecyl sulfate polyacrylamide gel electrophoresis Methods 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical class O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
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Classifications
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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
- A61K31/335—Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin
- A61K31/35—Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin having six-membered rings with one oxygen as the only ring hetero atom
- A61K31/351—Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin having six-membered rings with one oxygen as the only ring hetero atom not condensed with another ring
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D309/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings
- C07D309/16—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member
- C07D309/28—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D309/30—Oxygen atoms, e.g. delta-lactones
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D309/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings
- C07D309/32—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having two double bonds between ring members or between ring members and non-ring members
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Pharmacology & Pharmacy (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Description
より具体的には、本発明は、自然免疫機構による生体の炎症応答に重要な役割を有するインフラマソームなどの複合体の形成や活性を阻害することによりカスパーゼ1の活性化を阻害する作用を有し、慢性炎症や自己炎症性疾患などの予防及び/又は治療のために有用な医薬に関するものである。
より具体的には、本発明は、インフラマソームなどの複合体の形成やインフラマソーム経路を阻害することによりカスパーゼ1の活性化を阻害する作用を有し、慢性炎症や自己炎症性疾患などの予防及び/又は治療のために有用な医薬を提供することにある。
また、本発明により提供される新規化合物は、上記の医薬の有効成分などに有用である。
(a)R1及びR2のいずれか一方が水酸基又はアシルオキシ基であり、他方が水素原子であり;R3及びR4がそれぞれ独立に水素原子又はフッ素原子を示し;式中の----は単結合又は二重結合を示し、----が二重結合を示す場合にはR1及びR4は存在せず;R5及びR6が水素原子であり;R7が-CH2-OR8であり、R8が水素原子、アルキル基、又はアシル基を示すか、あるいはR8はR6と結合して-R8-R6-となって単結合を示す場合;及び
(b)R2が水素原子又はフッ素原子であり;R3が水素原子又はフッ素原子であり;式中の----が二重結合を示し;R5及びR6が水素原子であり;R7が-CH2-OR8であり、R8が水素原子又はアシル基を示すか、あるいはR8はR6と結合して-R8-R6-となって単結合を示す場合を挙げることができる。
(c)R2が水素原子であり;R3が水素原子又はフッ素原子であり;式中の----が二重結合を示し;R5及びR6が水素原子であり;R7が-CH2-OR8であり、R8が水素原子又はアシル基を示すか、あるいはR8はR6と結合して-R8-R6-となって単結合を示す場合;及び
(d)R2が水素原子であり;R3が水素原子又はフッ素原子であり;式中の----が二重結合を示し;R5が水素原子であり;R7が-CH2-OR8であり、R8がR6と結合して-R8-R6-となって単結合を示す場合
を挙げることができる。
もっとも、好ましい組み合わせはこれらに限定されることはない。
(d)R11及びR12のいずれか一方が水酸基又はアシルオキシ基であり、他方が水素原子であり;R13が水素原子又はフッ素原子であり;R14がアシル基であり;R15及びR16がそれぞれ独立に水素原子又はフッ素原子であり;R17が-CH2-OR18であり、R18が水素原子、アルキル基、又はアシル基である場合を上げることができ、さらに好ましい組み合わせとしては、
(e)R11及びR12のいずれか一方がアシルオキシ基であり、他方が水素原子であり;R13が水素原子であり;R14がアシル基であり;R15及びR16が水素原子であり;R17が-CH2-OR18であり、R18が水素原子、アルキル基、又はアシル基である場合
を挙げることができる。
もっとも、好ましい組み合わせはこれらに限定されることはない。
(1)工程1
化合物10 1H NMR(600MHz, CDCl3): δ2.50(dd,1H), 3.78-3.82(m,1H), 3.85-3.88(m,1H), 4.18(dd,1H), 4.34(d,1H), 4.45-4.47(m,1H), 6.24(dd,1H), 7.01(d,1H).
化合物11 1H NMR(600MHz, CDCl3): δ2.12(s,3H), 4.16(dd,1H), 4.26(dd,1H), 4.34-4.36 (m,2H), 4.57-4.60(m,1H), 6.24(dd,1H), 6.99(dd,1H).
(1)工程1
化合物18 1H NMR(600MHz, CDCl3): δ2.13(s,3H), 4.21-4.25(m,2H), 4.36(dd,1H), 4.45 (dd,1H), 4.76-4.81(m,1H), 6.47(dd,1H).
(1)工程1
化合物27 1H NMR(600MHz,D2O): δ 1.82(dd, 0.55H), 1.96(dtr,0.55H), 2.50(dtr,0.45H), 2.82(dd,0.45H), 3.33(d,0.55H), 3.43-3.67(m,2.45H), 3.81-3.84(m,1H), 4.00-4.08(m,1H), 4.22-4.23(m,0.45H)
化合物28 1H NMR(600MHz, CDCl3): δ 2.08(s,3H), 2.11(s,3H), 2.15(s,3H), 3.81-3.83(m,1H), 4.10-4.13(m,1H), 4.18-4.21(m,1H), 4.25-4.31(m,1H), 5.36-5.38(m,1H), 5.62-5.64(m,1H)
(a)実験方法
(1)マウス骨髄由来マクロファージの培養
マウス骨髄由来マクロファージの調製は次のように行った。マクロファージ細胞への分化、維持に用いる培地の調製の為に、あらかじめL929細胞をD培地(DMEM/F12, 牛胎児血清10%、1%ペニシリンストレプトマイシンを含む)で培養し、その培養上清を回収し、遠心分離(3000rpm、5分、4℃)後に凍結した。マウス骨髄由来マクロファージ培養用培地(L培地)として、L929培養上清を0.22μmのろ過滅菌フィルターで滅菌後したものをD培地に25%の割合で加えたものを調製した。
7〜8週齢のC57BL/6系統オスマウスの大腿骨を無菌的に採取し、その内腔から骨髄細胞を取り出し、上記の方法で調製したL培地を用いて、7〜10日間培養し分化させた。
培養分化させたマクロファージはダルベッコリン酸緩衝生理食塩水(D-PBS)で洗浄後、セルストリッパー溶液でピペッティングにより細胞を剥離回収し、D培地を加えた後400G、5分の遠心操作を行った。遠心上清を除去後、D培地で再懸濁して細胞数をカウント後、96穴培養プレートには1穴あたり5×104個あるいは3.5 cmシャーレには1×106個播種した。培養プレートあるいはシャーレに播種した細胞は、一晩インキュベーターで培養後、D-PBSで洗浄して非接着細胞を除去し、再びD培地を加え実験に用いた。
マウス骨髄由来マクロファージへの刺激は、下記の方法で行った。
a)LPS及びNigericinによる刺激
マクロファージをまずLPS[LPS-EB Ultrapure (InvivoGen社製)]100 ng/mlを含む培地で4時間インキュベートした。LPS処理後、D-PBSで洗浄し、牛胎児血清を含まないDMEM/F12培地に溶解した各濃度の化合物溶液と45分〜1時間インキュベートした。インキュベート後に細胞から溶液を除去し、DMEM/F12培地に溶解したNigericin (5μM)で45分〜1時間インキュベートした後に細胞及び細胞上清を回収した。
上述の方法a)において、Nigericin(5μM)の代わりにATP(5 mM)又は尿酸結晶(100 μg /ml)でインキュベートした後に細胞及び細胞上清を回収した。
dsDNA(シグマ社製)と、Lipofectamine 2000 (ライフテクノロジー社製)はDMEM/F12培地でそれぞれ、10 μg/ml及び10 μl/mlの濃度に希釈後、1:1の割合で混合し20分間インキュベートした。上述の方法a)において、Nigericinの代わりにdsDNA:Lipofectamine 2000A混合液を加え、3時間インキュベートした後に細胞及び細胞上清を回収した。
マクロファージの刺激後培養細胞上清中の成熟型IL-1βの測定はMouse IL-1β ELISA kit (eBioscience社製)を用いて行った。また、活性型カスパーゼ1及び成熟型IL-1βは回収した細胞溶解液及び培養上清の濃縮液をSDS-PAGE電気泳動で分離後、ニトロセルロース膜に転写し特異的抗体により検出した。
マウス骨髄由来マクロファージのLPS及びNigericin刺激時のIL-1β分泌に及ぼす化合物の影響を調べた結果を図1(3de)及び図2(enone体)に示す。LPS/Nigericin刺激によって培養上清中にIL-1βが分泌されるが、Nigericin刺激前に化合物とインキュベートすることにより、用量依存的にIL-1β分泌は抑制された。
Claims (9)
- カスパーゼ1活性化に起因する疾患の予防及び/又は治療のための医薬であって、下記の一般式(I)又は(II):
- 一般式(I)において、R1及びR2のいずれか一方が水酸基又はアシルオキシ基であり、他方が水素原子であり;R3及びR4がそれぞれ独立に水素原子又はフッ素原子を示し;式中の----は単結合又は二重結合を示し、----が二重結合を示す場合にはR1及びR4は存在せず;R5及びR6が水素原子であり;R7が-CH2-OR8であり、R8が水素原子、アルキル基、又はアシル基を示すか、あるいはR8はR6と結合して-R8-R6-となって単結合を示す請求項1に記載の医薬。
- 一般式(I)において、R2が水素原子又はフッ素原子であり;R3が水素原子又はフッ素原子であり;式中の----が二重結合を示し;R5及びR6が水素原子であり;R7が-CH2-OR8であり、R8が水素原子又はアシル基を示すか、あるいはR8はR6と結合して-R8-R6-となって単結合を示す請求項1に記載の医薬。
- 上記一般式(II)において、R11及びR12のいずれか一方がアシルオキシ基であり、他方が水素原子であり;R13が水素原子であり;R14がアシル基であり;R15及びR16が水素原子であり;R17が-CH2-OR18であり、R18が水素原子、アルキル基、又はアシル基である請求項1に記載の医薬。
- カスパーゼ1活性化に起因する疾患が、がん、免疫抑制性疾患、自己免疫疾患、ウイルス感染症、神経変性疾患、内分泌疾患、炎症性疾患、臓器移植障害、及び放射線障害からなる群から選ばれる請求項1ないし4のいずれか1項に記載の医薬。
- カスパーゼ1活性化に起因する疾患が、全身性炎症性反応症候群SIRS、慢性関節リウマチ、アルツハイマー病、クライオピリン関連周期熱症候群、家族性地中海熱、PAPA症候群、Majeed症候群、高IgD症候群、反復性胞状奇胎、DIRA、炭疽菌感染症、急性呼吸促拍症候群、炎症性細胞死、又は石綿肺からなる群から選ばれる請求項1ないし4のいずれか1項に記載の医薬。
- 請求項1に記載の一般式(I)又は(II)で表される化合物を有効成分として含むカスパーゼ1活性化阻害剤。
- 請求項1に記載の一般式(I)又は(II)で表される化合物を有効成分として含むインフラマソーム形成阻害剤。
- 請求項1に記載の一般式(I)又は(II)(式(I)中、R1及びR2のいずれか一方は水酸基又はアシルオキシ基を示し、他方は水素原子又はフッ素原子を示し;R3及びR4はそれぞれ独立に水素原子又はフッ素原子を示し;式中の----は単結合又は二重結合を示し、----が二重結合を示す場合にはR1及びR4は存在せず;R5及びR6はそれぞれ独立に水素原子、アルキル基、又はフッ素原子を示し;R7は-CH2-OR8、-CHF-OR8、-CF2-OR8、水素原子、アルキル基、又はトリフルオロメチル基を示し、R8は水素原子、アルキル基、又はアシル基を示すか、あるいはR8はR6と結合して-R8-R6-となって単結合を示し、式(II)中、R11及びR12のいずれか一方は水酸基又はアシルオキシ基を示し、他方は水素原子又はフッ素原子を示し;R13は水素原子又はフッ素原子を示し;R14はアシル基を示し;R15及びR16はそれぞれ独立に水素原子、アルキル基、又はフッ素原子を示し;R17は-CH2-OR18、-CHF-OR18、-CF2-OR18、水素原子、アルキル基、又はトリフルオロメチル基を示し、R18は水素原子、アルキル基、又はアシル基を示すか、あるいはR18はR16と結合して-R18-R16-となって単結合を示すが、ただし、式(I)においてR2が水素原子であり、R3が水素原子であり、式中の----が二重結合であり、R5が水素原子又はアルキル基であり、R7が-CH2-OR8であり、R8がR6と結合して-R8-R6-となって単結合を示す場合を除き、式(I)においてR2が水素原子であり、R3が水素原子であり、式中の----が二重結合であり、R5及びR6のいずれか一方がアルキル基である場合、又は/及び、R7がアルキル基である場合を除き、式(I)においてR2が水素原子であり、R3が水素原子であり、式中の----が二重結合であり、R5及びR6のいずれか一方がフッ素原子であり、R7が-CH2-OR8であり、R8がアシル基である場合を除き、式(I)においてR2が水酸基であり、R3が水素原子であり、式中の----が二重結合であり、R5及びR6が水素原子であり、R7が水素原子である場合を除き、式(II)においてR11及びR12のいずれか一方がアシルオキシ基であり、R13が水素原子であり、R14がアシル基であり、R15及びR16のいずれか一方がフッ素原子であり、R17が-CH2-OR18であり、R18がアシル基である場合を除く)で表される化合物。
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