JP2008502676A - アルキル置換されたインドロキノキサリン化合物 - Google Patents
アルキル置換されたインドロキノキサリン化合物 Download PDFInfo
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- JP2008502676A JP2008502676A JP2007516422A JP2007516422A JP2008502676A JP 2008502676 A JP2008502676 A JP 2008502676A JP 2007516422 A JP2007516422 A JP 2007516422A JP 2007516422 A JP2007516422 A JP 2007516422A JP 2008502676 A JP2008502676 A JP 2008502676A
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Abstract
式(I)の新規な置換されたインドロキノキサリン化合物(式中、R1は水素であるか、あるいは、ハロゲン基、低級アルキル/アルコキシ基、ヒドロキシ基、トリフルオロメチル基、トリクロロメチル基、トリフルオロメトキシ基から選択される7位〜10位における1つまたは複数の類似または異なる置換基を表す;R2は類似または異なるC1〜C4アルキル置換基を表す;XはCOまたはCH2である;Yは、OH、NH2、NH−(CH2)n−R3(式中、R3は、低級アルキル、OH、NH2、NHR4またはNR5R6を表し、この場合、R4、R5およびR6は独立して、低級アルキルまたはシクロアルキルであり、nは2〜4の整数である)である;ただし、XがCH2であるとき、YはOHまたはNH−(CH2)n−OHである)およびその薬理学的に許容され得る塩が記載される。本発明の化合物は、自己免疫疾患を防止および/または処置するための薬物として有用である。
Description
R1は水素であるか、あるいは、ハロゲン基(例えば、クロロ、フルオロ、ブロモ)、低級アルキル/アルコキシ基、ヒドロキシ基、トリフルオロメチル基、トリクロロメチル基、トリフルオロメトキシ基から選択される7位〜10位における1つまたは複数の類似または異なる置換基を表す;
R2は類似または異なるC1〜C4アルキル置換基を表す;
XはCOまたはCH2である;
Yは、OH、NH2、NH−(CH2)n−R3(式中、R3は、低級アルキル、OH、NH2、NHR4またはNR5R6を表し、この場合、R4、R5およびR6は独立して、低級アルキルまたはシクロアルキルであり、nは2〜4の整数である)である;
ただし、XがCH2であるとき、YはOHまたはNH−(CH2)n−OHである)。
本発明の新規なアルキル置換されたインドロキノキサリン化合物は、薬物として、また、特に自己免疫疾患を防止および/または処置するために、例えば、リウマチ様関節炎(RA)および多発性硬化症(MS)を防止および/または処置するために有用である。
下記の式(I)の置換されたインドロキノキサリン化合物およびその薬理学的に許容され得る塩:
R1は水素であるか、あるいは、ハロゲン基、低級アルキル/アルコキシ基、ヒドロキシ基、トリフルオロメチル基、トリクロロメチル基、トリフルオロメトキシ基から選択される7位〜10位における1つまたは複数の類似または異なる置換基を表す;
R2は類似または異なるC1〜C4アルキル置換基を表す;
XはCOまたはCH2である;
Yは、OH、NH2、NH−(CH2)n−R3(式中、R3は、低級アルキル、OH、NH2、NHR4またはNR5R6を表し、この場合、R4、R5およびR6は独立して、低級アルキルまたはシクロアルキルであり、nは2〜4の整数である)である;
ただし、XがCH2であるとき、YはOHまたはNH−(CH2)n−OHである。
c;R7=H)またはその塩(例えば、Na)およびインドロ[2,3−b]キノキサリン−6−イル酢酸アルキル:
をそれぞれ得て、その後、式(b)の化合物から、第一級アミド、すなわち、下記の式(II)のインドロ[2,3−b]キノキサリン−6−イルアセトアミド:
と反応させ、そのようにして得られた固体を酸性化し、ろ過し、得られたろ液を塩基性化し、これにより式(IV)の化合物を得る方法。
を提供するものである。
がそれぞれ得られる。第一級アミド、すなわち、下記の式(II)のインドロ[2,3−b]キノキサリン−6−イルアセトアミド:
98%; Mp: 286-288°C; 1H-NMRδ: 8.36(d, 1H), 8.04(s, 1H), 7.99-9.94(m, 2H), 7.86(dd, 1H), 5.75(s, 2H), 2.53(s, 6H).
下記の式(II)の第一級アミド:
化合物A
2,3−ジメチルインドロ[2,3−b]キノキサリン−6−イルアセトアミド(R1=H、R2=CH3、X=CO、Y=NH2)
収率:
72%; 1H-NMR δ: 8.38(d, 1H), 8.16(s, 1H), 8.05(s, 1H), 7.70(m, 2H), 7.59(d, 1H), 7.40(t, 1H), 7.16(s, 1H), 5.08(s, 2H), 2.50(s, 6H);
化合物B
9−クロロ−2,3−ジメチルインドロ[2,3−b]キノキサリン−6−イルアセトアミド(R1=Cl、R2=CH3、X=CO、Y=NH2)
収率:
66%; 1H-NMR δ: 8.29(s, 1H), 7.99(s, 1H), 7.90(s, 1H), 7.65-7.50(m, 3H), 7.07(bs, 1H), 5.06(s, 2H), 2.48(s, 6H);
化合物C
2,3−ジメチル−9−フルオロインドロ[2,3−b]キノキサリン−6−イルアセトアミド(R1=F、R2=CH3、X=CO、Y=NH2)
収率:
32%; Mp: 316-319°C; 1H-NMR δ: 8.11(dd, 1H), 8.01(s, 1H), 7.86(s, 1H), 7.70(s, 1H), 7.65-7.55(m, 2H), 7.29(s, 1H), 5.05(s, 2H), 2.50(s, 6H).
本発明による下記の式(III)の新規な第二級アミド:
2,3−ジメチル−9−フルオロインドロ[2,3−b]キノキサリン−6−イル酢酸メチル
収率:
74%; Mp: 257-259°C; 1H-NMR δ: 8.16(dd, 1H), 8.05(s, 1H), 7.91(s, 1H), 7.82(dd, 1H), 7.62(dt, 1H), 5.41(s, 2H), 3.65(s, 3H), 2.50(s, 6H).
その後、式(III)の第二級アミドが下記の手順によって得られる:
式cの化合物を還流下での適切なアミン(0.5gのcあたり10mL)に加え、最後に4分間〜15分間還流する。反応混合物を室温に冷却し、室温に冷えたとき、水を加える。形成された固体をろ過し、水により洗浄し、乾燥し、次いで、熱エタノールにより処理し、ろ過し、再びエタノールにより洗浄し、乾燥して、式(III)の生成物を得る。
化合物D
2,3−ジメチル−6−(N,N−ジメチルアミノエチルアミノ−2−オキソエチル)−6H−インドロ[2,3−b]キノキサリン(R1=H、R2=CH3、X=CO、Y=NH−CH2−CH2−R3;R3=NR5R6;R5=R6=CH3)
収率:
63%; 1H-NMR δ: 8.33(d, 1H), 8.27 (t, 1H), 8.02(s, 1H), 7.85(s, 1H), 7.70(t, 1H), 7.58(d, 1H), 7.39(t, 1H), 5.09(s, 2H), 3.17(q, 2H), 2.49(s, 6H), 2.32(t, 2H), 2.14(s, 6H);
化合物E
9−クロロ−2,3−ジメチル−6−(N,N−ジメチルアミノエチルアミノ−2−オキソエチル)−6H−インドロ[2,3−b]キノキサリン(R1=Cl、R2=CH3、X=CO、Y=NH−CH2−CH2−R3;R3=NR5R6;R5=R6=CH3)
収率:
58%; 1H-NMR δ: 8.29(d, 1H), 8.23 (t, 1H), 7.98(s, 1H), 7.82(s, 1H), 7.71(dd, 1H), 7.61(d, 1H), 5.09(s, 2H), 3.16(q, 2H), 2.47(s, 6H), 2.28(t, 2h), 2.12(s, 6H);
化合物F
9−クロロ−2,3−ジメチル−6−(アミノエチルアミノ−2−オキソエチル)−6H−インドロ[2,3−b]キノキサリン(R1=Cl、R2=CH3、X=CO、Y=NH−CH2−CH2−NH2)
収率:
71%; 1H-NMR δ: 8.32(d, 1H), 8.27 (t, 1H), 8.01(s, 1H), 7.85(s, 1H), 7.73(dd, 1H), 7.66(d, 1H), 5.11(s, 1H), 3.17(s, 2H), 3.07(q, 2H), 2.57(t, 2H), 2.49(s, 6H);
化合物G
2,3−ジメチル−6−(N,N−ジメチルアミノエチルアミノ−2−オキソエチル)−9−フルオロ−6H−インドロ[2,3−b]キノキサリン(R1=F、R2=CH3、X=CO、Y=NH−CH2−CH2−R3;R3=NR5R6;R5=R6=CH3)
収率:
51%; Mp: 241-242°C; 1H-NMR δ: 8.10-8.00(m, 3H), 7.84 (s, 1H), 7.59-7.53(m, 2H), 5.09(s, 2H), 3.19(q, 2H), 2.94 (s, 1H), 2.79(s, 1H), 2.50(s, 6H), 2.31(t, 2H), 2.14(s, 6H);
化合物H
2,3−ジメチル−6−(アミノエチルアミノ−2−オキソエチル)−9−フルオロ−6H−インドロ[2,3−b]キノキサリン(R1=F、R2=CH3、X=CO、Y=NH−CH2−CH2−NH2)
収率:
88%; Mp: 269-271°C; 1H-NMR δ: 8.26(t, 1H),8.13(dd, 1H), 8.04(s, 1H), 7.88 (s, 1H), 7.68-7.56(m, 2H), 5.12 (s, 2H), 3.07(q, 2H), 2.57(t, 2H), 2.50(s, 6H).
下記の式(IV)の新規な第二級アミド:
もまた、下記の実施例が例示するような下記の一般的な代わりの方法によって調製することができる。
化合物J
2,3−ジメチル−6−(N,N−ジメチルアミノエチルアミノ−2−オキソエチル)−9−フルオロ−6H−インドロ[2,3−b]キノキサリン
収率:
89%; Mp: 242-243°C.
下記の式(V)の新規なカルボン酸:
は下記の手順に従って調製することができる:
一般的手順
式(a)の適切なインドロ[2,3−b]キノキサリン誘導体(1当量)を、不活性雰囲気(ArまたはN2)のもと、30℃で、DMAまたはDMSO(1mmolのaあたり5mL)におけるNaH(1.1当量)のスラリーに少量ずつ加え、30分間撹拌した。30分間撹拌したとき、クロロ酢酸ナトリウム(1.1当量)を一度に加えた。得られた反応混合物を室温で20時間撹拌し、最後に、水に注ぎ、HClにより酸性化し、ろ過し、水により洗浄し、乾燥し、再結晶した(DMF)。
化合物K
2,3−ジメチル−9−クロロインドロ[2,3−b]キノキサリン−6−イル酢酸
収率:
0.77g(45%); 1H-NMR δ: 13.29(bs, 1H), 8.34 (s, 1H), 8.03(s, 1H), 7.89(s, 1H), 7.83-7.75(m, 2H), 5.26(s, 2H), 2.50(s, 6H); Mp: 331-332°C.
式(V)の新規なカルボン酸(式中、R1およびR2は式(I)において定義される通りである)はまた、下記の実施例が例示するような一般的な代わりの方法によって調製することができる。
化合物L
2,3−ジメチル−9−フルオロインドロ[2,3−b]キノキサリン−6−イル酢酸
収率:
1.54g(97%); 1H-NMR δ: 14-13(bs, 1H), 8.06 (dd, 1H), 7.93(s, 1H), 7.80(s, 1H), 7.75(dd, 1H), 7.56(m, 1H), 5.21(s, 2H), 2.43(s, 6H); Mp: 317-318°C.
本発明による化合物を、リウマチ様関節炎に対する効果および多発性硬化症に対する効果を評価するために下記のモデルに従って試験した。
1.抗体誘導関節炎モデルの利点
・関節炎が、関節炎誘発性mAbの単独でのiv注射の後、または、関節炎誘発に不十分な用量のmAbの後でのLPSの注射の後、24時間〜48時間のうちにマウスにおいて発症する。両方の場合において、関節炎は少なくとも2週間〜3週間またはそれよりも長く持続し、強直をもたらす。
(A)II型コラーゲンに対する4つのモノクローナル抗体のカクテル(2mg)を0日目に静脈内注射し、その後、LPS(50μg)の腹腔内注射を3日目に行う。関節炎が4日目に発症し、7日目〜8日目にそのピークに達する。試験化合物の治療的効果が7日目に測定される。骨芽細胞の形成および骨の破壊が、14日目および21日目に、より著しくなる(データは示されず)。
(B)真のコラーゲン誘導関節炎。
0日目 7日目 9日目 11日目
トウモロコシ油 2.2 3.3 3.3 3.2
B−220 2.2 3.1 3.0 2.8
化合物C 2.2 3.1 3.0 2.8
化合物H 2.2 2.5 2.5 2.5
化合物E 2.5 2.3 2.3 2.3
デキサメタゾン 2.2 2.3 2.3 2.3
図3を参照する。
図4。21日間の観察期間全体を通して観察された平均群EAE臨床スコア評価。
図5。21日間の観察期間全体を通して観察された平均群EAE臨床スコア評価。
Claims (12)
- 下記の式(I)の置換されたインドロキノキサリン化合物およびその薬理学的に許容され得る塩:
R1は水素であるか、あるいは、ハロゲン基、低級アルキル/アルコキシ基、ヒドロキシ基、トリフルオロメチル基、トリクロロメチル基、トリフルオロメトキシ基から選択される7位〜10位における1つまたは複数の類似または異なる置換基を表す;
R2は類似または異なるC1〜C4アルキル置換基を表す;
XはCOまたはCH2である;
Yは、OH、NH2、NH−(CH2)n−R3(式中、R3は、低級アルキル、OH、NH2、NHR4またはNR5R6を表し、この場合、R4、R5およびR6は独立して、低級アルキルまたはシクロアルキルであり、nは2〜4の整数である)である;
ただし、XがCH2であるとき、YはOHまたはNH−(CH2)n−OHである。 - XがCOであり、YがOHまたはNH2であり、かつ、R1がハロゲン原子である、請求項1に記載のインドロキノキサリン化合物。
- R1がクロロ原子またはフルオロ原子である、請求項1または2に記載のインドロキノキサリン化合物。
- XがCOであり、かつ、YがNH−CH2−CH2−R3(式中、R3はNH2またはN(CH3)2である)である、請求項1に記載のインドロキノキサリン化合物。
- R2が2位および3位においてメチルである、請求項1〜4のいずれかに記載のインドロキノキサリン化合物。
- 薬物として使用される、請求項1〜5のいずれかに記載の式(I)の化合物。
- 請求項1〜5のいずれかに記載の式(I)の化合物を、場合により使用される溶媒、キャリアおよび補助剤と一緒に含有する医薬組成物。
- 自己免疫疾患を防止および/または処置するための請求項1〜6のいずれかに記載の式(I)の化合物。
- リウマチ様関節炎を防止および/または処置するための請求項8に記載の式(I)の化合物。
- 多発性硬化症を防止および/または処置するための請求項8に記載の式(I)の化合物。
- 一般式(I)の化合物(式中、R1、R2、R3、R4、R5、R6、XおよびYは請求項1におけるように定義される)を調製するための方法であって、下記の式(a)の化合物:
c;R7=H)またはその塩(例えば、Na)およびインドロ[2,3−b]キノキサリン−6−イル酢酸アルキル:
をそれぞれ得て、その後、式(b)の化合物から、第一級アミド、すなわち、下記の式(II)のインドロ[2,3−b]キノキサリン−6−イルアセトアミド:
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EP2128160B1 (en) | 2008-04-30 | 2010-07-14 | Universität Duisburg-Essen | Indolo[2,3-b]-, Indeno[1,2-b]- and Indeno[2,1-b]pyrido[2,3-f] quinoxaline-3-carboxylic acids and esters, processes for their preparation and their use as antiviral, antibiotic and antitumor agents |
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