JP7495035B2 - 大環類チロシンキナーゼ阻害剤の結晶形及びその製造方法 - Google Patents
大環類チロシンキナーゼ阻害剤の結晶形及びその製造方法 Download PDFInfo
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Description
Lymphoma Kinase)は、受容体チロシンキナーゼのインスリン受容体スーパーファミリーに属し、脳の発育及び特定のニューロンに重要な役割を果たす。現在多くの癌にALK突然変異が発見されており、未分化大細胞リンパ腫(ALCL)、非小細胞肺癌、炎症性筋線維芽細胞腫瘍、結腸直腸癌、乳癌やその他のいくつかの癌を含む。
A/B/Cのキナーゼ領域は、80%以上の配列相同性を持つ。TRK A遺伝子、ROS1遺伝子及びALK遺伝子は、チロシンキナーゼ領域において40%前後の配列相同性を持つ。市販されているALK阻害剤クリゾチニブ(Crizotinib)はROS1とTRKの両方の阻害活性を有し、TRK阻害剤エントレチニブ(Entrectinib)もALKとROS1の阻害活性を有する。
vitamin A receptor)調節剤、プロテアソーム阻害剤、トポイソメラーゼ阻害剤、生体応答調節剤、ホルモン剤、血管新生阻害剤、細胞増殖阻害剤、標的抗体、HMG-CoAレダクターゼ阻害剤及びプレニル基タンパク質転移酵素阻害剤などを含むが、これらに限定されない。
2. (R)-6-(2-(5-フルオロ-2-メトキシピリジン-3-イル)ピロリジン-1-イル)ピリジン-2,3-ジアミンの製造
3. (R)-5-(2-(5-フルオロ-2-メトキシピリジン-3-イル)ピロリジン-1-イル)-3H-イミダゾ[4,5-b]ピリジンの製造
4. (R)-3-(1-(3H-イミダゾ[4,5-b]ピリジン-5-イル)ピロリジン-2-イル)-5-フルオロピリジン-2-オールの製造
5. ((R)-1-((3-((R)-1-(3H-イミダゾ[4,5-b]ピリジン-5-イル)ピロリジン-2-イル)-5-フルオロピリジン-2-イル)オキシ)プロパ-2-イル)カルバミン酸t-ブチル
6. (R)-1-((3-((R)-1-(3H-イミダゾ[4,5-b]ピリジン-5-イル)ピロリジン-2-イル)-5-フルオロピリジン-2-イル)オキシ)プロパ-2-アミンの製造
7. (22R,6R)-35-フルオロ-6-メチル-13H-4-オキサ-7-アザ-1(5,3)-イミダゾ[4,5-b]ピリジン-3(3,2)-ピリジン-2(1,2)-ピロリジニルシクロオクタン-8-オンの製造
2H), 7.31-7.35 (m, 1H), 6.51 (d,J = 8.8 Hz, 1H), 5.63-5.60 (m, 1H),
5.13-5.17 (m, 1H), 4.39-4.42 (m, 1H), 4.15-4.19 (m, 1H), 3.92-3.98 (m, 1H),
3.65-3.60 (m, 1H), 2.50-2.59 (m, 2H), 2.40-2.50 (m, 1H), 1.95-2.01 (m, 1H),
1.57(d,J = 6.8 Hz, 3H).
実施例2:式(I)化合物結晶形IIの製造
製造方法1:
式(I)化合物10.00gとアセトン12.5gを混合し、撹拌して50~55℃に昇温し、溶解して澄明化し、降温して結晶を析出し、固体を析出させた後、さらに10℃に降温し、10℃で水60mLを滴下し、滴下終了後、保温して0.5h撹拌し、吸引ろ過し、45~50℃で真空乾燥し、製品を得て、XRDにより検出した結果、式(I)化合物の結晶形IIであった。
式(I)化合物50.00gとアセトン62.50gを混合し、撹拌して50~55℃に昇温し、溶解して澄明化し、10~15℃に降温して結晶を析出し、10~15℃でノルマルヘプタン375mLを滴下し、保温して撹拌し、吸引ろ過し、50℃で真空乾燥し、製品を得て、XRDにより検出した結果、式(I)化合物結晶形IIであった。
3-1:式(I)化合物600.00gと酢酸エチル900mLを混合し、60~70℃に昇温し、溶解して澄明化し、20℃に降温し、20±5℃でノルマルヘプタン6Lを滴下し、保温して撹拌し、吸引ろ過し、50℃で真空乾燥し、製品を得て、XRDにより検出した結果、式(I)化合物結晶形IIであった。
X線反射パラメータ:Cu、Kα;入射スリット:0.6mm;発散スリット:1mm;走査モード:連続;走査範囲:3.0~45.0度;サンプリング歩幅:0.02度;歩あたりの走査時間:0.3s。
示差走査熱量テスト
示差走査熱量法(DSC)によって式(I)化合物の結晶形IIの固体熱特性を検討した。DSCテスト条件:窒素ガスを用いて50mL/minでパージし、100℃~200℃で、3℃/minの加熱速度でデータを収集し、吸熱ピークが下に向く時にプロットした。結晶形IIのDSC曲線は図2に示される。DSC熱分析パターンに示すように、前記結晶形IIは160℃~165℃に吸熱転移ピークが存在し、その最大吸熱時の転移温度(相転移温度)、即ち吸熱ピークのピーク値での温度は162.25±3℃である。
TGAテスト条件:窒素ガスを用いて60mL/minでパージし、室温~350℃、10℃/minの加熱速度でデータを収集した。結晶形IIのTGA曲線は図3に示される。TGAスペクトルに示すように、前記結晶形IIは0℃~250℃で明らかな重量減少がなかった。
1.安定性試験
被験品:式(I)化合物の結晶形II
実験方法:適量の被験品をそれぞれ秤量し、以下の条件で放置した後、被験品の性状、水分、含有量、関連物質、XRD、DSCを調べ、放置条件は以下の通りである。
40℃、RH75%の条件下で閉口/開口して1ヶ月放置し、1ヶ月後、サンプリングして検出した(開放包装は平型計量瓶で、密閉包装は低密度ポリエチレン袋と低密度ポリエチレン袋+複合膜袋である。)。
X線回折法によって測定される。
60℃で閉口/開口して10日間放置する条件、又は25℃ RH92.5%で閉口/開口して10日間放置する条件、又は40℃ RH75%閉口/開口して1ヶ月放置する条件下では、性状、総関連物質、含有量、水分、XRD、DSCのいずれにも変化が認められず、結晶形の安定性が良好である。
被験品:式(I)化合物の結晶形II;
実験方法:『中国薬局方』2015年版四部通則9103医薬品の吸湿性試験のガイドライン原則に従って測定した。すなわち、被験品を25℃、RH80%の条件下で24h放置し(サンプル瓶を当該条件下に24h放置しておく。)、結果を表2に示す。
以下、本発明の化合物の活性テストの例を提供し、本発明の化合物の有利な活性及び有益な技術的効果を示す。なお、下記実験計画は本発明の内容の例示に過ぎず、本発明の範囲を制限するものではない。
実験材料
試験化合物:実施例1の方法によって製造され式(I)化合物
実験に使用される細胞株の定義:
Ba/F3 LMNA-NTRK1-G595R細胞系:
Ba/F3細胞にLMNA-NTRK1 G595Rをトランスフェクションした安定発現細胞株;
Ba/F3 ETV6-NTRK3-G623R細胞系:
Ba/F3細胞にETV6-NTRK3-G623Rをトランスフェクションした安定発現細胞株。
1. 細胞培養及び接種
全ての細胞は懸濁細胞であり、培地は全てRPMI-1640+10%FBSであり、細胞は対数成長期で試験に用いた。
DMSOを用いて試験化合物のストック液を10mMから1mMに希釈し、その後、DMSOを用いて3倍連続勾配希釈を行い、合計9つの濃度とした。DMSO勾配希釈した化合物溶液2μLをそれぞれ取り、培養液198μLに加え、試験化合物のワーキングストック液(化合物濃度は終濃度の10倍で、DMSO濃度は1%で、最高濃度は10μMである。)を得た。
細胞を接種した96ウェルプレートのウェルあたり化合物のワーキングストック液(10倍希釈、DMSO終濃度0.1%)10μLを加えた。
CTG試薬を融解し、細胞プレートを室温に平衡化して30分間保持し、ウェルあたり試薬(Celltiter
Glo assay kit)60μLを加え、振とう器で2min振とうさせ、均一に混合し(遮光)、室温で10分間インキュベートした(遮光)。マルチモードプレートリーダーにより光信号値を読み取った。
1) 阻害率(%)=(DMSO溶媒対照ウェルの読み取り値-試験物ウェルの読み取り値)/(DMSO溶媒対照ウェルの読み取り値-空白ウェルの読み取り値)×100%;
2) GraphPad Prism 5.0に入力してプロップし、曲線及びIC50を得た。
ETV6-NTRK3-G623Rなどの細胞の増殖を効果的に阻害することができ、臨床的には、本発明の化合物はNTRK遺伝子突然変異により引き起こされる薬剤耐性癌疾患を治療する潜在力を有することが示された。
実験材料
試験化合物:実施例1の方法によって製造される式(I)化合物
実験に使用される細胞株の定義:
Ba/F3 SLC34A2/ROS1-G2032R細胞系:
Ba/F3細胞にSLC34A2/ROS1-G2032Rをトランスフェクションした安定発現細胞株。
1. 細胞の培養及び接種
全ての細胞は懸濁細胞であり、培地は全てRPMI-1640+10%FBSであり、細胞は対数成長期で試験に用いた。
DMSOを用いて試験化合物のストック液を10mMから1mMに希釈し、その後、DMSOを用いて3.16倍連続勾配希釈を行い、合計9つの濃度とした。DMSO勾配希釈した化合物溶液2μLをそれぞれ取り、培養液198μLに加え、試験化合物のワーキングストック液(化合物濃度は終濃度の10倍で、DMSO濃度は1%で、最高濃度は10μMである。)を得た。
細胞を接種した96ウェルプレートのウェルあたり化合物のワーキングストック液(10倍希釈、DMSO終濃度0.1%)10μLを加えた。
CTG試薬を融解し、細胞プレートを室温に平衡化して30分間保持し、ウェルあたり試薬(Celltiter-Glo
assay kit)100μLを加え、振とう器で5min振とうさせ、均一に混合し(遮光)、室温で20分間インキュベートした(遮光)。マルチモードプレートリーダーにより光信号値を読み取った。
1) 細胞生存率(%)=(試験物ウェルの読み取り値-空白ウェルの読み取り値)/(DMSO溶媒対照ウェルの読み取り値-空白ウェルの読み取り値)×100%;
2) GraphPad Prism 5.0に入力してプロップし、曲線及びIC50を得た。
実験品:実施例1の方法によって製造される式(I)化合物
陽性対照薬:化合物LOXO-195は、市販品として入手するか、又は従来技術WO2011146336で開示された方法によって製造され、その構造は以下に示される。
3.1 細胞接種
RPMI1640無血清培地に再懸濁させたBaF3 LMNA-NTRK1-G595R安定的トランスフェクション細胞株を、1×106 cell/匹(0.1ml/匹)で、マウス(NOD-SCID)の右肩甲部皮下に接種した。
平均腫瘍体積が約500mm3になると、Vehicle群、式(I)化合物(10/5/3/1mg/kg、bid)群、LOXO-195群(30/10/3mg/kg、bid)にランダムに分けた。
1)腫瘍成長阻害率TGI(%)
腫瘍成長阻害率TGI(%)=(1-T/C)×100%
2)治療群/対照群腫瘍体積の比T/C(%)
T/C(%)=TRTV/CRTV×100%
* RTV=Vt/V0、ここで、Vtは群分けした後のt日目の腫瘍体積で、V0は群分けする当日の腫瘍体積であり、TRTVは投与群の平均相対腫瘍体積で、CRTVは溶媒対照群の平均相対腫瘍体積である。
実験データから明らかなように、本発明の化合物を経口投与することにより、NTRK融合遺伝子を含む細胞系BaF3
LMNA-NTRK1-G595R腫瘍の薬効モデルを効果的に阻害することができ、即ち、本発明の化合物はNTRK融合遺伝子突然変異による腫瘍に対して良好な腫瘍阻害作用を有し、臨床的には非常に良い使用の将来性が期待できる。
Claims (13)
- その粉末X線回折パターンにおいて、8.86±0.2°、13.43±0.2°、15.06±0.2°、18.66±0.2°、19.10±0.2°、19.71±0.2°、20.42±0.2°、及び22.95±0.2°にも特徴的なピークを有する請求項1に記載の結晶形II。
- DSC熱分析パターンに示すように、155℃~170℃に1つの吸熱転移ピークが存在する請求項1に記載の結晶形II。
- DSC熱分析パターンに示すように、160℃~165℃に吸熱転移ピークが存在する請求項1に記載の結晶形II。
- DSC熱分析パターンに示すように、最大吸熱量を発生させるときの転移温度が162.25±3℃である請求項1に記載の結晶形II。
- 式(I)化合物と有機溶媒とを混合して、化合物が完全に溶解するまで加熱し、貧溶媒を滴下し、固体を析出させて、ろ過して乾燥し、結晶形IIを得るステップを含む請求項1又は2に記載の結晶形IIの製造方法。
- 以下の1つ又は複数のことを特徴とする請求項6に記載の結晶形IIの製造方法。
(1)前記有機溶媒はアセトン及び酢酸エチルから選択される1種又は複数種であること
(2)前記貧溶媒は水及びノルマルヘプタンから選択される1種又は複数種であること
(3)30℃~80℃に加熱すること - サンプルが溶解して澄明になるまで加熱する請求項7に記載の結晶形IIの製造方法。
- 請求項1~5のいずれか1項に記載の式(I)化合物の結晶形IIと、1種又は複数種の薬学的に許容される担体及び/又は賦形剤と、を含有する医薬製剤又は医薬組成物。
- Nav1.7チャネルモジュレータ、オピオイド鎮痛薬、非ステロイド性抗炎症薬、鎮静剤、選択的/非選択的エポキシダーゼ阻害剤、抗癲癇薬、抗うつ薬、局所麻酔薬、5-HT受容体遮断薬、5-HT受容体アゴニスト、麦角類アルカロイド、β-受容体遮断薬、M受容体遮断薬、硝酸エステル類及びビタミンKから選択される疼痛治療薬と、
有糸分裂阻害剤、アルキル化剤、代謝拮抗剤、アンチセンスDNA又はRNA、抗腫瘍抗生物質、成長因子阻害剤、シグナル伝達阻害剤、細胞周期阻害剤、酵素阻害剤、ビタミンA様受容体調節剤、プロテアソーム阻害剤、トポイソメラーゼ阻害剤、生体応答調節剤、ホルモン剤、血管新生阻害剤、細胞増殖阻害剤、標的抗体、HMG-CoAレダクターゼ阻害剤及びプレニル基タンパク質転移酵素阻害剤から選択される癌治療薬と、
ドーパミン様薬物、ドーパミン受容体アゴニスト、ドーパミン代謝作用薬、NMDA受容体拮抗剤、アデノシンA2A受容体阻害剤、DA放出及び再取り込み作用薬、中枢性抗コリン薬、コリンエステラーゼ阻害剤、5-HTアゴニスト、α2アドレナリン作動性受容体拮抗剤、抗うつ薬、コリン受容体アゴニスト、β/γセクレターゼ阻害剤、H3受容体拮抗剤及び抗酸化薬から選択される神経変性疾患を治療する医薬品と、
病状改善用抗リウマチ薬、非ステロイド性抗炎症薬、グルココルチコイド薬、TNF拮抗剤、シクロホスファミド、ミコフェノール酸エステル及びシクロスポリンから選択される自己免疫疾患を治療する医薬品と、
ステロイド系抗炎症薬及び非ステロイド系抗炎症薬から選択される炎症を治療する医薬品から選択される1種又は複数種の第2治療活性剤をさらに含有する請求項9に記載の医薬組成物。 - 請求項1~5のいずれか1項に記載の式(I)化合物の結晶形IIの、TRK、ALK及び/又はROS1のうちの1種又は複数種のチロシンキナーゼが媒介する疾患及び関連障害を治療及び/又は予防する医薬品の製造における使用であって、
前記疾患及び関連障害は、疼痛、癌、炎症、神経変性疾患、自己免疫疾患から選択される1種又は複数種である使用。 - 前記TRK、ALK及び/又はROS1のうちの1種又は複数種のチロシンキナーゼが媒介する疾患は癌であり、
前記癌は、肺癌、結腸癌、直腸癌、前立腺癌、乳癌、肝臓癌、胆のう癌、胆管癌、白血病、黒色腫、リンパ癌、甲状腺癌、多発性骨髄腫、軟部肉腫、卵巣癌、子宮頸癌、卵管癌、腎細胞癌、胃癌、消化管間質腫、骨癌、基底細胞癌、腹膜癌、皮膚線維腫、膵臓癌、食管癌、膠芽腫、頭頸部癌、炎症性筋線維芽腫、未分化大細胞リンパ腫及び神経芽細胞腫から選択される請求項11に記載の使用。 - 肺癌は小細胞肺癌及び非小細胞肺癌から選択される請求項12に記載の使用。
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