JP5894714B1 - 上皮成長因子受容体の活性化変異型のキナゾリン阻害剤 - Google Patents
上皮成長因子受容体の活性化変異型のキナゾリン阻害剤 Download PDFInfo
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Abstract
Description
4−[(3−クロロ−2−フルオロフェニル)アミノ]−7−メトキシキナゾリン−6−イル(2R)−2,4−ジメチルピペラジン−1−カルボキシレート;
4−[(3−クロロ−2−フルオロフェニル)アミノ]−7−メトキシキナゾリン−6−イル(2S)−2,4−ジメチルピペラジン−1−カルボキシレート;および
4−[(3−クロロ−2−フルオロフェニル)アミノ]−7−メトキシキナゾリン−6−イル(±)−2,4−ジメチルピペラジン−1−カルボキシレート;
またはこれらの医薬的に許容しうる塩から選ばれる。
4−[(3−クロロ−2−フルオロフェニル)アミノ]−7−メトキシキナゾリン−6−イル(2R)−2,4−ジメチルピペラジン−1−カルボキシレート;
4−[(3−クロロ−2−フルオロフェニル)アミノ]−7−メトキシキナゾリン−6−イル(2S)−2,4−ジメチルピペラジン−1−カルボキシレート;および
4−[(3−クロロ−2−フルオロフェニル)アミノ]−7−メトキシキナゾリン−6−イル(±)−2,4−ジメチルピペラジン−1−カルボキシレート;から選ばれる。
結晶形Aは、CuKa照射(23.3°と14.3°)を用いて測定した下記2θ値の少なくとも1つをもたらすことを特徴とする。結晶形Aは、実質的に図1に示すようなX線粉末回折ピークを示すことを特徴とする。10個のX線粉末回折ピークを表Aに示す。
結晶形Eは、CuKa照射(7.3°と13.7°)を用いて測定した下記2θ値の少なくとも1つをもたらすことを特徴とする。結晶形Eは、実質的に図3に示すようなX線粉末回折ピークを示すことを特徴とする。9個のX線粉末回折ピークを表Bに示す。
結晶形Iは、CuKa照射(3.5°と7.0°)を用いて測定した下記2θ値の少なくとも1つをもたらすことを特徴とする。結晶形Iは、実質的に図5に示すようなX線粉末回折ピークを示すことを特徴とする。10個のX線粉末回折ピークを表Cに示す。
結晶形Jは、CuKa照射(7.8°と7.0°)を用いて測定した下記2θ値の少なくとも1つをもたらすことを特徴とする。結晶形Iは、実質的に図5に示すようなX線粉末回折ピークを示すことを特徴とする。10個のX線粉末回折ピークを表Dに示す。
モノ塩酸塩結晶形A1は、CuKa照射(12.3°と13.9°)を用いて測定した下記2θ値の少なくとも1つをもたらすことを特徴とする。モノ塩酸塩結晶形A1は、実質的に図9に示すようなX線粉末回折ピークを示すことを特徴とする。9個のX線粉末回折ピークを表Eに示す。
コハク酸塩結晶形A8は、CuKa照射(6.5°と17.7°)を用いて測定した下記2θ値の少なくとも1つをもたらすことを特徴とする。コハク酸塩結晶形A8は、実質的に図11に示すようなX線粉末回折ピークを示すことを特徴とする。9個のX線粉末回折ピークを表Fに示す。
ヒト肺細胞株NCI−H3255(L858R)をAmerican Type Culture Collectionから入手した。NCI−H3255細胞を、ウシ胎仔血清(FBS)(Gibco;10099−141)を10%含有するBEBM媒体(Lonza;CC−3171)中に保持した〔BEGMキット(Lonza;CC−4175)を補充〕。ヒト肺細胞株PC−9(Exon19欠失EGFR)をAmerican Type Culture Collectionから入手した。PC−9細胞を、ウシ胎仔血清を10%含有するRPMI1640(Gibco;22400−089)中に保持した。ヒト肺細胞株NCI−H838(EGFR野生型)をAmerican Type Culture Collectionから入手した。NCI−H838細胞を、ウシ胎仔血清を10%含有するRPMI1640(Gibco;22400−089)中に保持した。
Kp,uu brainとKp,uu CSFが、CNS創薬において測定・最適化される主要パラメーターでなければならない(Di L et al.,Journal of Medicinal Chemistry[2013],56:2−12)。Kp,uu brain、すなわち脳中と血液中における非結合薬物の濃度間の関係は、脳軟髄膜転移(LM)(癌の軟髄膜への転移拡散によって起こり、中枢神経系の機能不全を引き起こす)での転移性腫瘍に及ぼす薬物作用を予測する。Kp,uu CSFは、血液中への薬物の分散と比較したときのCSF中への薬物の分散を表わしており、軟髄膜転移の治療処置時の薬物反応を高める。
(i)抗CTLA−4抗体;
(ii)6−(4−ブロモ−2−クロロ−フェニルアミノ)−7−フルオロ−3−メチル−3H−ベンゾイミダゾール−5−カルボン酸(2−ヒドロキシ−エトキシ)−アミド(WO2007/076245に開示)またはその医薬的に許容しうる塩;
(iii)抗PD−L1抗体;
(iv)1−[(1S)−1−(イミダゾ[1,2−a]ピリジン−6−イル)エチル]−6−(1−メチル−1H−ピラゾール−4−イル)−1H−[1,2,3]トリアゾロ[4,5−b]ピラジン(WO2011/079804の化合物270)またはその医薬的に許容しうる塩;
(v)抗PD−1抗体;または
(vi)OXアゴニスト抗体。
(i)一般には、反応の進行は、液体クロマトグラフィー質量分析(LCMS)または薄層クロマトグラフィー(TLC)によって追跡した;もたらされる反応時間は、必ずしも達成可能な最少時間ではない;
(ii)必要な場合は、有機溶液を無水硫酸マグネシウムまたは無水硫酸ナトリウムにより乾燥した;最終処理手順は、従来の層分離法を使用して行った;エバポレーションは、減圧下でのロータリーエバポレーションによって、あるいはGenevac HT−4/EZ−2にて行った;
(iii)収量(存在する場合)は、必ずしも達成可能な最大値ではなく、もしより多くの量の反応生成物が必要とされる場合は反応を繰り返した;
(iv)一般には、最終生成物の構造は、核磁気共鳴(NMR)法及び/又は質量スペクトル法によって確認した;エレクトロスプレー質量スペクトルデータは、陽イオンデータと陰イオンデータを取得するWaters ZMDまたはWaters ZQLC/質量分析計(一般には、親構造に関係するイオンだけが記録される)を使用して得た;プロトンNMRの化学シフト値は、Bruker NMRスペクトロメータまたはVarian NMRスペクトロメータを使用して、400MHzにてデルタスケールに従って測定した。以下の略語を使用した:s,一重項;d,二重項;pd,部分二重項(partial doublet);t,三重項;q,四重項;m,多重項;br,ブロード。交換性プロトンは、重水素化溶媒または溶媒中の有利な重水との交換のために、最終生成物のNMR中に必ずしも観察もしくは記録されるとは限らないし、あるいはシグナルの分解が不十分である、及び/又は、シグナルが極めてブロードである;
(v)中間体は、必ずしも充分には精製しなかったが、それらの構造と純度は、TLC、分析HPLC、及び/又はNMR分析によって評価した;
(vi)特に明記しない限り、カラムクロマトグラフィー(フラッシュ法による)と中圧液体クロマトグラフィーは、Merck Kieselgelシリカ(Art.9385)を使用して、あるいはプレパックドシリカカートリッジを使用して、半自動フラッシュクロマトグラフィー(SFC)装置(例えばCombiFlash Companion)により行った;および
(vii)以下の略語が使用されている: Boc:tert−ブチルオキシカルボニル;CD3OD:デューテロメタノール;DMSO−d6:ヘキサデューテロジメチルスルホキシド;CDCl3:デューテロクロロホルム;PE:石油エーテル;IPA:イソプロパノール;iPrOAc:酢酸イソプロピル;MTBE:メチルtert−ブチルエーテル;DCM:ジクロロメタン;THF:テトラヒドロフラン;RT:室温;MeOH:メタノール;EtOH:エタノール;およびEtOAc:酢酸エチル。
分析機器:Panalytical Empyrean。X線粉末ディフラクトグラムは、結晶性物質のサンプルをシリコン単結晶ホルダー上に据え付け、顕微鏡スライドを用いてサンプルを薄層中に広げることによって測定した。2θ位置は、Panalytical640シリコン粉末標準に対して較正した。銅性のロングファインフォーカス管(copper long−fine focus tube)によって発生させたX線を照射したサンプルを、Kα1=1.540598ÅとKα2=1.54426Åの波長を用いて45kVおよび40mAにて動作させた(Kα2/Kα1強度比は0.50)。平行X線源を10mmに設定のプログラム化発散スリットに通し、反射放射線を5.5mmの飛散防止スリットを通して誘導する。サンプルを、θ−θモードにて3度2θ〜40度2θの範囲にわたって、0.0167°の2θ増分当たり12.7秒曝露した。操作時間は3分と57秒であった。機器にはRTMS検出器(X'Celerator)を取り付けた。調整とデータ収集は、データコレクター・ソフトウェアで動作するDell Optiplex780XPにより行った。X線粉末回折の当業者には周知のことであるが、ピークの相対強度は、例えば、粒径が30ミクロン超の粒子と非ユニタリーアスペクト比(サンプルの分析に影響を及ぼすことがある)によって影響を受けることがある。さらに当業者には周知のことであるが、反射の位置は、サンプルが回折計中に置かれている正確な高さおよび回折計のゼロ較正によって影響を受けることがある。さらに、サンプルの表面平面性も、わずかに影響を及ぼすことがある。したがって、もたらされる回折パターンデータは、絶対的な値と考えるべきではない。
分析機器:TA Instruments Q200またはQ2000DSC。一般には、蓋つきの標準的なアルミニウム製パン中に収容した5mg未満の材料を、10℃/分の一定の加熱速度で25℃〜300℃の温度範囲にわたって加熱した。窒素を用いたパージガスを使用した(流量50ml/分)。
5−ヒドロキシ−4−メトキシ−2−ニトロ安息香酸
2−アミノ−5−ヒドロキシ−4−メトキシ安息香酸
7−メトキシキナゾリン−4,6−ジオール
4−ヒドロキシ−7−メトキシキナゾリン−6−イルアセテート
4−クロロ−7−メトキシキナゾリン−6−イルアセテート
4−[(3−クロロ−2−フルオロフェニル)アミノ]−7−メトキシキナゾリン−6−イルアセテート
4−[(3−クロロ−2−フルオロフェニル)アミノ]−7−メトキシキナゾリン−6−オール
中間体8
tert−ブチル(3R)−4−(クロロカルボニル)−3−メチルピペラジン−1−カルボキシレート
4−tert−ブチル1−{4−[(3−クロロ−2−フルオロフェニル)アミノ]−7−メトキシキナゾリン−6−イル}(2R)−2−メチルピペラジン−1,4−ジカルボキシレート
4−[(3−クロロ−2−フルオロフェニル)アミノ]−7−メトキシキナゾリン−6−イル(2R)−2−メチルピペラジン−1−カルボキシレート
(S)−2,4−ジメチルピペラジン−1−カルボニルクロライド
(±)−tert−ブチル(4−(クロロカルボニル)−3−メチルピペラジン−1−カルボキシレート
(±)−4−tert−ブチル1−{4−[(2−フルオロフェニル)アミノ]−7−メトキシキナゾリン−6−イル}2−メチルピペラジン−1,4−ジカルボキシレート
(±)−4−[(3−クロロ−2−フルオロフェニル)アミノ]−7−メトキシキナゾリン−6−イル−2−メチルピペラジン−1−カルボキシレート
4−[(3−クロロ−2−フルオロフェニル)アミノ]−7−メトキシキナゾリン−6−イル(2R)−2,4−ジメチルピペラジン−1−カルボキシレート
結晶形A物質は、実施例1を140℃に加熱することによって得られた。約10mgの実施例1をアルミニウム製パン中に置いた。示差走査熱量測定法(DSC)を使用して、パンを10℃/分の加熱速度で140℃に加熱し、引き続き窒素ガス雰囲気下で室温に冷却した。
約10mgの実施例1を5mlのバイアル中に計量し、0.25mlのTHFを加えて固体を溶解し、次いで4mlの逆溶媒ヘプタンをバイアルに加え、本混合物を室温で24時間撹拌してから固体を単離した。XRPDによりサンプル(結晶形E)が結晶質であることが確認された。結晶形Eの融点は194.2℃(開始)であった。
約10mgの実施例1を3mlのバイアル中に計量し、1mlのH2Oをバイアルに加え、懸濁液を50℃で24時間撹拌してから固体を単離した。XRPDによりサンプル(結晶形I)が結晶質であることが確認された。結晶形Iの融点は193.3℃(開始)であった。
約10mgの実施例1を3mlのバイアル中に計量し、1mlのH2Oをバイアルに加え、懸濁液を室温で24時間撹拌してから固体を単離した。XRPDによりサンプル(結晶形J)が結晶質であることが確認された。結晶形Jの融点は193.3℃(開始)であった。
4−[(3−クロロ−2−フルオロフェニル)アミノ]−7−メトキシキナゾリン−6−イル(2R)−2,4−ジメチルピペラジン−1−カルボキシレート塩酸塩
約10mgの実施例1に、0.35mlのIPAを、次いで0.217mlの塩酸を加えた。溶液を蓋でしっかりシールし、マグネチックスターラープレート上で撹拌した。撹拌中に、幾らかの白色沈殿物が観察された。約24時間後、サンプルを分離し、室温にて減圧乾燥した。XRPDによりこの結晶形(モノ塩酸塩結晶形A1)が結晶質であることが確認された。この結晶形の融点は259.6℃(開始)であった。
4−[(3−クロロ−2−フルオロフェニル)アミノ]−7−メトキシキナゾリン−6−イル(2S)−2,4−ジメチルピペラジン−1−カルボキシレート
4−[(3−クロロ−2−フルオロフェニル)アミノ]−7−メトキシキナゾリン−6−イル(±)2,4−ジメチルピペラジン−1−カルボキシート
4−[(3−クロロ−2−フルオロフェニル)アミノ]−7−メトキシキナゾリン−6−イル(2R)−2,4−ジメチルピペラジン−1−カルボキシレートの他の結晶形
4−[(3−クロロ−2−フルオロフェニル)アミノ]−7−メトキシキナゾリン−6−イル(2R)−2,4−ジメチルピペラジン−1−カルボキシレートの他の塩形
4−[(3−クロロ−2−フルオロフェニル)アミノ]−7−メトキシキナゾリン−6−イル(2R)−2,4−ジメチルピペラジン−1−カルボキシレートスクシネート
コハク酸塩結晶形A8は、上記の手順によって得られた。XRPDにより、この結晶形(コハク酸塩結晶形A8)が結晶質であることが確認された。融点は191.8℃(開始)であった。
Claims (20)
- 4−[(3−クロロ−2−フルオロフェニル)アミノ]−7−メトキシキナゾリン−6−イル(2R)−2,4−ジメチルピペラジン−1−カルボキシレートである、請求項1に記載の式(I)の化合物。
- 4−[(3−クロロ−2−フルオロフェニル)アミノ]−7−メトキシキナゾリン−6−イル(2R)−2,4−ジメチルピペラジン−1−カルボキシレート塩酸塩。
- 4−[(3−クロロ−2−フルオロフェニル)アミノ]−7−メトキシキナゾリン−6−イル(2R)−2,4−ジメチルピペラジン−1−カルボキシレートコハク酸塩である、請求項1に記載の式(I)の化合物の医薬的に許容しうる塩。
- 請求項1〜4のいずれか一項に記載の式(I)の化合物またはその医薬的に許容しうる塩の結晶。
- 2θ=12.3°と13.9°において少なくとも2つの固有ピークが存在するX線粉末回折パターンを有する、ここで前記値は2θ±0.2°であってよい、請求項3に記載の式(I)の化合物のモノ塩酸塩の結晶。
- 2θ=12.3、13.9、9.3、23.3、18.7、16.0、24.6、26.8、および28.0°において固有ピークが存在するX線粉末回折パターンを有する、ここで前記値は2θ±0.2°であってよい、請求項3に記載の式(I)の化合物のモノ塩酸塩の結晶。
- 2θ=6.5、17.7、および14.7°において少なくとも3つの固有ピークが存在するX線粉末回折パターンを有する、ここで前記値は2θ±0.2°であってよい、請求項4に記載の式(I)の化合物のコハク酸塩の結晶。
- 2θ=6.5、17.7、14.7、9.2、26.5、20.2、13.1、27.3、および24.0°において固有ピークが存在するX線粉末回折パターンを有する、ここで前記値は2θ±0.2°であってよい、請求項4に記載の式(I)の化合物のコハク酸塩の結晶。
- 請求項1〜9のいずれか一項に記載の式(I)の化合物またはその医薬的に許容しうる塩を、医薬的に許容しうる希釈剤もしくはキャリヤーと関連して含む医薬組成物。
- 医薬として使用するための、請求項1〜9のいずれか一項に記載の式(I)の化合物またはその医薬的に許容しうる塩。
- ヒト等の温血動物における活性化変異EGFRを阻害するための医薬の製造における、請求項1〜9のいずれか一項に記載の式(I)の化合物またはその医薬的に許容しうる塩の使用。
- 請求項1〜9のいずれか一項に記載の式(I)の化合物またはその医薬的に許容しうる塩を有効量にて含む、抗癌剤。
- 非小細胞肺癌の治療に使用するための、請求項13に記載の抗癌剤。
- 転移性非小細胞肺癌の治療に使用するための、請求項13に記載の抗癌剤。
- (i)抗CTLA−4抗体;
(ii)6−(4−ブロモ−2−クロロ−フェニルアミノ)−7−フルオロ−3−メチル−3H−ベンゾイミダゾール−5−カルボン酸(2−ヒドロキシ−エトキシ)−アミドまたはその医薬的に許容しうる塩;
(iii)抗PD−L1抗体;
(iv)1−[(1S)−1−(イミダゾ[1,2−a]ピリジン−6−イル)エチル]−6−(1−メチル−1H−ピラゾール−4−イル)−1H−[1,2,3]トリアゾロ[4,5−b]ピラジンまたはその医薬的に許容しうる塩;
(v)抗PD−1抗体;または
(vi)OX40アゴニスト抗体
から選ばれる抗腫瘍薬と請求項1〜9のいずれか一項に記載の式(I)の化合物、またはその医薬的に許容しうる塩とを組合わせてなる医薬。 - 転移が脳転移である、請求項15に記載の抗癌剤。
- 転移が軟髄膜転移である、請求項15に記載の抗癌剤。
- 4−[(3−クロロ−2−フルオロフェニル)アミノ]−7−メトキシキナゾリン−6−イル(2R)−2,4−ジメチルピペラジン−1−カルボキシレート塩酸塩を有効成分とする抗癌剤。
- 4−[(3−クロロ−2−フルオロフェニル)アミノ]−7−メトキシキナゾリン−6−イル(2R)−2−メチルピペラジン−1−カルボキシレートまたはその医薬的に許容しうる塩。
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