JP3776203B2 - ICAM-1 production inhibitor - Google Patents
ICAM-1 production inhibitor Download PDFInfo
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- JP3776203B2 JP3776203B2 JP12242297A JP12242297A JP3776203B2 JP 3776203 B2 JP3776203 B2 JP 3776203B2 JP 12242297 A JP12242297 A JP 12242297A JP 12242297 A JP12242297 A JP 12242297A JP 3776203 B2 JP3776203 B2 JP 3776203B2
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- 0 *c(cc1CI)c(C*=C)c(CF)c1F Chemical compound *c(cc1CI)c(C*=C)c(CF)c1F 0.000 description 1
- QSMDSBOQFGTHGY-UHFFFAOYSA-N COC(Cc1cc(F)c(CF)c(CI)c1CC=O)=O Chemical compound COC(Cc1cc(F)c(CF)c(CI)c1CC=O)=O QSMDSBOQFGTHGY-UHFFFAOYSA-N 0.000 description 1
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Description
【0001】
【発明の属する技術分野】
本発明は、細胞の分化・活性化、発熱等の炎症時にみられる種々の現象、HIV遺伝子の複製・転写の増強等、TNF−α(腫瘍壊死因子)が誘導する種々の効果を阻害するTNF−α誘導効果阻害剤に関する。
【0002】
【従来の技術】
TNF−αは、マクロファージ等の細胞から主に産生されるサイトカインであり、多種類の細胞に作用し、腫瘍細胞の分裂阻止・障害による抗腫瘍活性、造血抑制、アポトーシスの誘導等による分化・増殖の調節、リンパ球の増粘性上昇、Tリンパ球の分裂等による免疫系への橋渡し、発熱因子、ホスフォリパーゼA2の活性化等による炎症・組織修復等のさまざまな機能、生物現象を引き起こす。
【0003】
これらの機能のうち、例えば炎症に関しては、TNF−αは炎症に関わるほぼすべての細胞に作用し、IL−6、IL−8、G−CSF、GM−CSF、M−CSF等のサイトカイン類やICAM−1等の細胞接着分子等を産生誘導し、炎症時にみられる多くの現象、例えばプロスタグランジンE2、プロテアーゼ、急性相蛋白質、ACTH等の産生誘導、細胞の分化・活性化、骨吸収、および滑膜増殖等に関与していると考えられている(山崎正利:サイトカイン94−基礎から最新情報まで−;日本医学館、109−117(1994)等)。
【0004】
一方TNF−αは、HIV感染者のAIDS発症または伸展にも深く関わっている可能性が指摘されている。すなわちHIVは細胞に感染すると、まず宿主細胞のDNAに組み込まれ、そこから自己遺伝子の複製を行うが、その際にTNF−α等のサイトカインがその遺伝子発現を促進する可能性が考えられている(Gruters, R. A., Otto, S. A., Al, B. J. M., Verhoeven, A. J., Verweij, C. L., Van Lier, R. A., W., Miedama, F.:Fur. J. Immunol., 21, 167-172(1991)等)。実際HIVの遺伝子が組み込まれている持続感染細胞をTNF−αで処理すると、HIV遺伝子の複製・転写が顕著に増強することが確認されている(Butera, S. T., Folks, T. M.:AIDS Res. Hum. Retroviruses, 8, 991-995(1992)等)。
【0005】
【発明が解決しようとする課題】
上記の知見から、TNF−αによって産生誘導される種々のサイトカイン等を選択的に阻害できることができる化合物であれば、TNF−αによる誘導効果、例えば炎症が関与する種々の疾患やHIVの遺伝子発現抑制等に有効性を示す可能性が考えられる。
【0006】
したがって本発明は、TNF−αによる誘導効果阻害剤を提供することを目的とする。
【0007】
【課題を解決するための手段】
かかる実状に鑑み、本発明者らは上記目的を達成すべく鋭意研究した結果、次の一般式(1)で表わされる化合物またはその塩が、TNF−αが誘導する種々の効果を有効に阻害することを見出し、本発明を完成させた。
【0008】
すなわち本発明は、一般式(1)
【0009】
【化11】
【0010】
[式中、R1は直鎖または分岐のC1-6アルキル基、2−ハロゲノシクロプロピル基または(1,2,4−トリアゾール−1−イル)−C1-6アルキルフェニル基を示し;
R5はフェニル基またはC1-6アルコキシフェニル基を示し;
R7はハロゲン原子を置換基として有していてもよいC1-6アルキル基、ハロゲン原子を置換基として有していてもよいC1-6アルコキシル基、または1もしくは2のC1-6アルキル基を置換基として有していてもよいアミノメチル基を示し;
Xは水素原子またはハロゲン原子を示し;
Zは炭素原子または窒素原子で表わされる部分構造を示す。ただし、Zが窒素原子で表わされる部分構造のとき、R7は1もしくは2のC1-6アルキル基を置換基として有していてもよいアミノメチル基である。]
で表わされる化合物またはその塩を有効成分とするTNF−αの誘導に由来するICAM−1の産生阻害剤を提供するものである。
【0022】
【発明の実施の形態】
本発明のTNF−α誘導効果阻害能を有する、一般式(1)で表わされる化合物の置換基について以下に述べる。なお、本願明細書において、例えば、「C1-6」とは、炭素数が1から6であることを示している。
【0023】
置換基R1は、直鎖または分岐鎖のC1-6アルキル基、2−ハロゲノシクロプロピル基又は(1,2,4−トリアゾール−1−イル)−C 1-6 アルキルフェニル基を示す。ここで、アルキル基としてはメチル基およびエチル基が好ましい。
【0024】
(1,2,4−トリアゾール−1−イル)−C1-6アルキル基のアルキル部分は、直鎖、分岐鎖または環状のいずれでもよく、メチル基が最も好ましい。
【0034】
一般式(1)中、R5は、フェニル基又はC 1-6 アルコキシフェニル基を示す。また、フェニル基上においてはそのいずれの位置にこの置換基があってもよい。
【0036】
Xは、ハロゲン原子または水素原子であるが、ハロゲン原子の場合はフッ素原子が好ましく、Xとしてはこれらのうち、フッ素原子または水素原子が好ましい。
【0039】
R 7 で示されるハロゲン原子を置換基として有していてもよいC1-6アルキル基またはC1-6アルコキシル基におけるハロゲン原子としてはフッ素原子または塩素原子が好ましく、特にフッ素原子が好ましい。フッ素原子を置換基として有するアルキル基またはアルコキシル基としては、直鎖状のアルキル基またはアルコキシル基が好ましい。かかるアルキル基またはアルコキシル基上のフッ素原子の数は特に限定はないが、モノ置換からパーフルオロ置換でよい。具体的には、モノフルオロメチル基、ジフルオロメチル基、トリフルオロメチル基、2,2,2−トリフルオロエチル基等のフルオロアルキル基;モノフルオロメトキシ基、ジフルオロメトキシ基、トリフルオロメトキシ基、2,2,2−トリフルオロエトキシ基等のフルオロアルコキシ基が挙げられる。
【0045】
本発明のTNF−αの誘導に由来するICAM−1の産生阻害剤の好ましい具体例としては、次の式(4)〜(7)で表わされる化合物またはその塩が挙げられる。
【0046】
【化13】
【0047】
式(1)の化合物は、例えば次の反応式にしたがって製造することができる。
【0048】
【化1】
【0049】
[式中、X′は、例えば、フッ素原子、塩素原子、臭素原子、C1-3アルキルスルホニル基、またはベンゼンスルホニル基、トルエンスルホニル基等のアリールスルホニル基等の、脱離基としての機能を有する置換基であり、Y′は、水酸基、C 1-6 アルコキシ基、または式(10):
【0050】
【化15】
【0051】
(式中、R9およびR10は、フッ素原子または低級アルキルカルボニルオキシ基を示す。)で表わされるホウ素含有置換基であり、R1 、R 5 、R 7 、XおよびZは、前記と同じ]
【0052】
すなわち、一般式(8)で表わされる化合物を式(9)で表わされる化合物あるいはその酸付加塩と反応させることによって製造することができる。
【0053】
Y′がC 1-6 アルコキシ基のとき、相当するカルボン酸への変換は、通常のカルボン酸エステルの加水分解に用いられる酸または塩基の存在下で行い、脱保護が必要な場合は保護基に対応した適当な条件で保護基を除去して式(1)で示される目的化合物を得ることができる。
【0054】
式(8)の化合物において、Y′が式(10)で表わされる化合物の場合には、式(9)の化合物と反応を行った後に酸性または塩基性化合物で処理することにより相当するカルボン酸に変換することができる。
【0055】
式(8)の化合物と式(9)の化合物との反応は、無溶媒または不活性溶媒中行うことができる。ここで不活性溶媒としては例えばジメチルスルホキシド、ピリジン、アセトニトリル、トリエチルアミン、エタノール、クロロホルム、ジメチルホルムアミド、ジメチルアセトアミド、N−メチルピロリドン、テトラヒドロフラン、水、3−メトキシブタノール等を挙げることができる。またはこれらの溶媒は混合物として使用してもよい。
【0056】
反応温度は、通常、室温〜200℃の範囲であり、好ましくは25℃〜150℃の範囲である。反応時間は30分〜48時間で、通常は30分〜2時間程度で完結する。
【0057】
反応は、無機塩基または有機塩基のような酸受容体、例えば、アルカリ金属もしくはアルカリ土類金属炭酸塩または炭酸水素塩、あるいはトリエチルアミン、ピリジン、1,8−ジアザビシクロウンデセン等の有機塩基性化合物の存在下で行うのが有利である。
【0058】
式(1)の化合物はエナンチオマーまたはジアステレオマーの存在する場合があるが、本発明化合物をヒトや動物に投与する際は単一のエナンチオマーまたはジアステレオマーからなるものを投与することが好ましい。なお、この「単一のエナンチオマーまたはジアステレオマーからなる」とは、他のエナンチオマーまたはジアステレオマーを全く含有しない場合だけではなく、物理定数や、生理活性に対して影響がない程度であれば他のエナンチオマーまたはジアステレオマーが含まれていてもよいという意味である。
【0059】
化合物(1)は、遊離体のままでもよいが、無機酸または有機酸の酸付加塩としてあるいはカルボキシル基の塩としてもよい。酸付加塩とする場合の例としては、塩酸塩、硫酸塩、硝酸塩、臭化水素酸塩、ヨウ化水素酸塩、リン酸塩等の無機酸塩類、あるいは酢酸塩、メタンスルホン酸塩、ベンゼンスルホン酸塩、トルエンスルホン酸塩、クエン酸塩、マレイン酸塩、フマル酸塩、乳酸塩等の有機酸塩類を挙げることができる。
【0060】
またカルボキシル基の塩としては、例えばリチウム塩、ナトリウム塩、カリウム塩等のアルカリ金属塩、マグネシウム塩、カルシウム塩等のアルカリ土類金属塩、アンモニウム塩、またトリエチルアミン塩やN−メチルグルカミン塩、トリス−(ヒドロキシルメチル)アミノメタン塩等を挙げることができる。
【0061】
またこれらの化合物(1)の遊離体、酸付加塩およびカルボキシル基の塩は、それぞれ水和物として存在することもある。
【0062】
一方、カルボン酸部分がエステルである本発明化合物は、合成中間体やプロドラッグとして有用である。ここで合成中間体として用いる場合、例えば、アルキルエステル類やベンジルエステル類、アルコキシアルキルエステル類、フェニルアルキルエステル類およびフェニルエステル類等が好ましい。
【0063】
また、プロドラッグとして用いる場合は、生体内で容易に切断されてカルボン酸の遊離体を生成するようなエステルが好ましく、例えば、アセトキシメチルエステル、ピバロイルオキシメチルエステル、エトキシカルボニルエステル、コリンエステル、ジメチルアミノエチルエステル、5−インダニルエステル、フタリジニルエステル、5−アルキル−2−オキソ−1,3−ジオキソール−4−イルメチルエステル、3−アセトキシ−2−オキソブチルエステル等のオキソアルキルエステル等が好ましい。
【0065】
化合物(1)は、またTNF−αに起因する、ICAM−1産生の阻害作用を有しており、種々の細胞接着を抑制することからICAM−1に基づく細胞接着に起因する疾患、例えば慢性関節リウマチ、関節炎などの炎症性疾患、心筋の虚血再灌流障害、気管支喘息、糸球体腎炎、臓器移植時の拒絶反応等の治療剤として有用である。
【0066】
化合物(1)をTNF−αの誘導に由来するICAM−1の産生阻害剤として使用する場合、投与量は、患者の年齢、性別、症状等により異なるが、成人一日当たり5mg〜2g、好ましくは50mg〜1000mgの範囲とするのが好ましい。この場合、一日量を一日1回、あるいは2〜3回に分けて投与すればよく、また一日量は必要によっては上記の量を超えてもよい。
【0067】
化合物(1)を含有するTNF−αの誘導に由来するICAM−1の産生阻害剤は、その投与法、剤型に特に制限はなく、通常用いられている各種製剤の調製法にてその投与法にあった剤型にすればよい。
【0068】
経口用製剤としては例えば、錠剤、散剤、顆粒剤、カプセル剤や、溶液剤、シロップ剤、エリキシル剤または油性もしくは水性の懸濁液等を挙げることができる。
【0069】
注射剤としては溶液を容器に収納後、凍結乾燥等によって固形製剤として用時調製の製剤としても良く、必要に応じて安定剤、防腐剤、溶解補助剤を使用してもよい。また一投与量毎に容器に収納してもよく、また多投与量を同一の容器に収納してもよい。
【0070】
また外用製剤として溶液剤、懸濁液、乳濁液、軟膏、ゲル、クリーム、ローション、スプレー等が挙げられる。
【0071】
固形製剤としては活性化合物とともに製剤学上許容されている添加物を含み、例えば充填剤類や増量剤類、結合剤類、崩壊剤類、溶解促進剤類、湿潤剤類、潤滑剤類等を必要に応じて選択して混合し、製剤化することができる。
【0072】
液体製剤としては溶液、懸濁液、乳液剤等を挙げることができ、添加剤として懸濁化剤、乳化剤等を含んでいてもよい。
【0073】
【実施例】
次に実施例を挙げて本発明をさらに詳細に説明するが、本発明は以下の実施例に限定されるものではない。
【0074】
実施例1
8−ジフルオロメトキシ−1,4−ジヒドロ−6−フルオロ−1−(トランス−2−フルオロシクロプロピル)−7−[4−(2−メトキシフェニル)−1−ピペラジニル]−4−オキソキノリン−3−カルボン酸(4)の合成
【0075】
【化16】
【0076】
8−ジフルオロメトキシ−1,4−ジヒドロ−6,7−ジフルオロ−1−(トランス−2−フルオロシクロプロピル)−4−オキソキノリン−3−カルボン酸(1−8)(100mg,0.286mmol)、1−(2−メトキシフェニル)ピペラジン(1−9)(110mg,0.572mmol)、トリエチルアミン(0.25ml)、アセトニトリル(5ml)を混合して4時間加熱還流した。反応液を減圧濃縮し、残留物をエタノールで結晶化して濾取し、83.3mgの標記化合物(4)を無色結晶として得た。得られた化合物(4)の物性は以下の通りである。
【0077】
融点:218−220℃
1H−NMR(CDCl3)δ:1.42−1.50(1H,m),1.90−2.01(1H,m),3.16−3.30(4H,m),3.50−3.37(2H,m),3.69−3.76(2H,m),3.91(3H,s,−OCH3),4.43−4.50(1H,m,N−CH),4.64(1H,dm,J=61Hz,−CHF−),6.61(1H,dd,J=77Hz,72Hz,−OCHF2),6.91−7.22(4H,m,aromatic H),8.07(1H,d,J=12Hz),8.71(1H,s,H−2),14.34(1H,broad,−COOH)
元素分析値:C25H23F4N3O5として
計算値:C,57.58;H,4.45;N,8.06
分析値:C,57.37;H,4.51;N,7.90
【0078】
参考例1
3,4−デヒドロ−4−フェニルピペリジン(A−9)の合成
【0079】
【化17】
【0080】
4−ヒドロキシ−4−フェニルピペリジン(497mg,2.80mmol)をトルエン(50ml)に溶解し、p−トルエンスルホン酸一水和物(800mg,4.21mmol)を加え、23時間加熱環流して脱水した。反応液を減圧乾固し、残留物に1規定水酸化ナトリウム水溶液(50ml)を加えてクロロホルムで抽出(2×50ml)した。有機層を飽和食塩水(2×50ml)で洗浄し、無水硫酸ナトリウムで乾燥後溶媒を留去して447mg(定量的)の標記化合物(A−9)を淡黄色油状物として得た。得られた化合物(A−9)の物性は以下の通りである。
【0081】
1H−NMR(CDCl3)δ:2.47(2H,m,−CH2−),3.11(2H,t,J=6Hz,−CH2−),3.53(2H,m,−CH2−),6.14(1H,m,=CH−),7.22−7.40(H,m,aromaticH)
【0082】
参考例2
4−フェニルピペリジン(B−9)の合成
【0083】
【化18】
【0084】
3,4−デヒドロ−4−フェニルピペリジン(447mg,2.81mmol)、エタノール(50ml)、5%パラジウム炭素(325mg)を混合し、1気圧水素雰囲気下、室温で15時間撹拌した。触媒を濾去し、濾液を減圧乾固して425mg(94%)の標記化合物(B−9)を無色結晶として得た。得られた化合物(B−9)の物性は以下の通りである。
【0085】
1H−NMR(CDCl3)δ:1.60−1.75(2H,m),2.58−2.66(1H,m),2.72−2.78(2H,m),3.18−3.21(2H,m),7.18−7.32(5H,m)
【0086】
実施例2
6−フルオロ−1−メチル−4−オキソ−7−(4−フェニル−1−ピペリジニル)−8−トリフルオロメトキシ−1,4−ジヒドロキノリン−3−カルボン酸(2−1)の合成
【0087】
【化19】
【0088】
6,7−ジフルオロ−1−メチル−4−オキソ−8−トリフルオロメチル−1,4−ジヒドロキノリン−3−カルボン酸(2−8)(87.2mg,0.284mmol;特開平8−183775号)、4−フェニルピペリジン(B−9)(68.6mg,0.425mmol)、トリエチルアミン(119μl,0.852mmol)、アセトニトリル(4ml)を混合し、17時間加熱環流した。反応液を放冷して析出した結晶を濾取し、エタノールから再結晶して64.2mg(50%)の標記化合物(2−1)を無色結晶として得た。得られた化合物(2−1)の物性は以下の通りである。
【0089】
融点:268.5−270℃
1H−NMR(CDCl3)δ:1.97(4H,broad,2×−CH2−),2.79−2.87(1H,m),3.79(2H,broad d,J=12.7Hz,−CH2−),4.02(2H,broad,−CH2−),7.23−7.37(5H,m,aromatic H),8.16(1H,d,J=12Hz,H−5),8.63(1H,s,H−2),14.63(1H,broad,−COOH)
IR:νmax(KBr):1734,1618,1488(cm-1)
元素分析値:C23H20F4N2O3・1/4H2Oとして
計算値:C,60.99;H,4.56;N,6.19
分析値:C,60.94;H,4.63;N,6.24
【0090】
実施例3
7−(3,4−デヒドロ−4−フェニル−1−ピペリジニル)−1,4−ジヒドロ−6−フルオロ−1−メチル−8−トリフルオロメチル−4−オキソキノリン−3−カルボン酸(5)の合成
【0091】
【化20】
【0092】
6,7−ジフルオロ−1−メチル−4−オキソ−8−トリフルオロメチル−1,4−ジヒドロキノリン−3−カルボン酸(2−8)(90mg,0.293mmol),3,4−デヒドロ−4−フェニルピペリジン(A−9)(70mg,0.44mmol)、トリエチルアミン(0.08ml)、アセトニトリル(5ml)を混合し、12時間加熱環流した。反応液を濃縮し、残留物をシリカゲルカラムクロマトグラフィー(クロロホルム:メタノール=10:1)にて精製後、得られた粗結晶をエタノールから再結晶して15mg(11%)の標記化合物(5)を淡黄色結晶として得た。得られた化合物(5)の物性は以下の通りである。
【0093】
融点:227.5−229℃
1H−NMR(CDCl3)δ:2.79(2H,bs,−CH2−),3.78(2H,bs,−CH2−),4.03(3H,s,−CH3),4.20(2H,bs,−CH2−),6.12(1H,bs),7.25−7.45(5H,m,Ar),8.16(1H,d,J=12Hz,H−5),8.60(1H,s,H−2),14.6(1H,s,COOH)
IR:νmax(KBr):1762,1734,1620,1562(cm-1)
元素分析値:C23H18F4N2O3として
計算値:C,61.88;H,4.06;N,6.28
分析値:C,61.74;H,4.14;N,6.24
【0094】
実施例4
8−ジフルオロメトキシ−1,4−ジヒドロ−6−フルオロ−7−(4−フェニル−1−ピペリジニル)−1−[4−(1,2,4−トリアゾール−1−イル)メチルフェニル]−4−オキソキノリン−3−カルボン酸(6)の合成
【0095】
【化21】
【0096】
8−ジフルオロメトキシ−1,4−ジヒドロ−6,7−ジフルオロ−1−[4−(1,2,4−トリアゾール−1−イル)メチルフェニル]−4−オキソキノリン−3−カルボン酸(4−8)(81.1mg,0.181mmol;DE−A−4425659号)、4−フェニルピペリジン(B−9)(43.7mg,0.271mmol)、トリエチルアミン(50ml,0.362mmol)、アセトニトリル(3ml)を混合し、24時間加熱環流した。反応液を氷冷し、析出した結晶を濾取した。濾液を濃縮して残留物をエタノールで結晶化し、濾取した。濾取した結晶を合わせてエタノールから再結晶して38.6mg(35%)の標記化合物(6)を無色結晶として得た。得られた化合物(6)の物性は以下の通りである。
【0097】
融点:180−183℃
1H−NMR(CDCl3)δ:1.80(2H,m,−CH2−),1.93(2H,m,−CH2−),2.69(1H,m,−CHPh−),3.26(2H,m,−CH2−),3.44(2H,m,−CH2−),5.48(2H,s,−CH2−),6.21(1H,t,J=75Hz,−OCHF2),7.21−7.26(2H,m,aromatic H),7.31−7.36(2H,m,aromatic H),7.43(1H,d,aromatic H),8.03(1H,s,triazole H),8.13(1H,d,J=12Hz,H−5),8.14(1H,s,triazole H),8.62(1H,s,H−2)
IR:νmax(KBr):1730,1622,1600,1504(cm-1)
元素分析値:C31H26F3N5O4・3/4H2Oとして
計算値:C,61.74;H,4.58;N,11.61
分析値:C,61.78;H,4.87;N,11.01
【0098】
参考例3
メチル 3−エテニル−2,4,5−トリフルオロベンゾアート(C)の合成
【0099】
【化22】
【0100】
テトラキストリフェニルホスフィンパラジウム(6.18g)、塩化リチウム(25.9g)、無水ジオキサン(500ml)の混合物にメチル 2,4,5−トリフルオロ−3−トリフルオルメタンスルホニルオキシベンゾアート(C′)(57.37g,0.170mmol)、テトラビニルスズ(33.6ml)の無水ジオキサン(500ml)溶液を窒素雰囲気下15分間で滴下した後、15時間加熱環流した。
反応液を減圧濃縮し、残留物にフッ化カリウム水溶液(1リットル)を加えてエーテル抽出(3×500ml)した。抽出液を飽和食塩水で洗浄し、無水硫酸ナトリウムで乾燥して溶媒を留去した。残留物をシリカゲルカラムに付し、n−ヘキサン−酢酸エチル(98:2)で溶出して目的物を含むフラクションを得た。減圧蒸留し、沸点:82℃/2mmHgの無色油状物(C)21.8g(59%)を得た。得られた化合物(C)の物性は以下の通りである。
【0101】
1H−NMR(CDCl3)δ:3.93(3H,s,COOCH3),5.73(1H,d,J=11Hz,CH=CHcisH),6.12(1H,d,J=18Hz,CH=CHtransH),6.70(1H,dd,J=11,18Hz,CH=CH2),7.65(1H,ddd,J=6,9,10Hz,H−6)
【0102】
参考例4
メチル 3−ホルミル−2,4,5−トリフルオロベンゾアート(D)の合成
【0103】
【化23】
【0104】
メチル 3−エテニル−2,4,5−トリフルオロベンゾアート(C)(21.8g,0.101mol)をメタノール(500ml)に溶解し、−78℃に冷却してオゾンを2時間吹き込んだ。過剰のオゾンを窒素ガスをバブルして除き、ジメチルスルフィド(14ml)を加えて室温まで昇温した。さらにジメチルスルフィド(14ml)を追加して30分間撹拌した後、反応液を減圧濃縮した。残留物に水(500ml)を加えてエーテル抽出(500ml)した。抽出液を水(300ml)、飽和食塩水(2×300ml)で洗浄し、無水硫酸ナトリウムで乾燥して溶媒を留去し、21.4gの化合物(D)を含む淡黄色油状物を得た。これは、−CHO+−OTf(3:2)の混合物である。得られた混合物の物性は以下の通りである。
【0105】
1H−NMR(CDCl3)δ:3.98(3H,s,−COOCH3),8.04(1H,ddd,J=7,9,9Hz,H−6),10.35(1H,s,−CHO)
【0106】
参考例5
2,3,6−トリフルオロ−5−メトキシカルボニル安息香酸(E)の合成
【0107】
【化24】
【0108】
メチル 3−ホルミル−2,4,5−トリフルオロベンゾアート(D)(21.2g)、2−メチル−2−ブテン(156ml)を第三級ブタノール(500ml)に溶解し、NaClO2(15.6g)、りん酸二水素ナトリウム(15.6g)の水溶液(200ml)を20分間で滴下した後、さらに室温で1時間撹拌した。反応液中の2−メチル−2−ブテンを減圧留去し、第三級ブタノールを真空ポンプで減圧下留去した。残留物に飽和重曹水(200ml)を加え、ジクロロメタン(3×200ml)で洗浄した。水層を濃塩酸でpH2とし、酢酸エチル(300ml+200ml)で抽出した。有機層を5%チオ硫酸ナトリウム(Na2S2O
3,2×250ml)、水(2×250ml)で洗浄し、無水硫酸ナトリウムで乾燥後溶媒を留去し、9.31gの標記化合物(E)を無色結晶として得た。得られた化合物(E)の物性は以下の通りである。
【0109】
融点:94−99℃
1H−NMR(CDCl3)δ:3.96(3H,s,−COOCH3),7.94(1H,ddd,J=6.35,8.79,9.76Hz,H−6)
【0110】
参考例6
3−カルバモイル−2,4,5−トリフルオロ安息香酸メチルエステル(F)の合成
【0111】
【化25】
【0112】
2,3,6−トリフルオロ−5−メトキシカルボニル安息香酸(E)(2.21g,9.77mmol)、ジメチルホルムアミド(触媒量,2滴)をジクロロメタン(40ml)に溶解し、オキザリルクロリド(2.56ml,29.3mmol)を5分間で滴下した後、室温で1時間撹拌した。反応液を減圧濃縮し、残留物をエーテル(30ml)に溶解した。エーテル溶液に、氷冷下、28%アンモニア水(5ml)を加えて10分間撹拌した(結晶析出)。反応液を減圧濃縮し、結晶を濾取した。結晶をジクロロメタンに溶解し、無水硫酸ナトリウムで乾燥して溶媒を留去した。残留した結晶をイソプロピルエーテルで洗い、1.74g(76%)の標記化合物(F)を無色結晶として得た。得られた化合物(F)の物性は以下の通りである。
【0113】
融点:145−147℃
1H−NMR(CDCl3)δ:3.95(3H,s,−COOCH3),6.00(broad s,−CONH2),7.88(1H,ddd,J=7,9,9Hz,H−6)
【0114】
参考例7
3−シアノ−2,4,5−トリフルオロ安息香酸メチルエステル(G)の合成
【0115】
【化26】
【0116】
3−カルバモイル−2,4,5−トリフルオロ安息香酸メチルエステル(F)(1.72g,7.38mmol)、ピリジン(1.49ml,18.4mmol)を1,4−ジオキサン(20ml)に溶解し、氷冷下、無水トリフルオロ酢酸(1.15ml,8.11mmol)を加えた。室温で4時間撹拌した後、ピリジン(1.49ml,18.4mmol)、無水トリフルオロ酢酸(1.15ml,8.11mmol)を加え、さらに13時間撹拌した。反応液を2規定塩酸(2×50ml)、水(50ml)、飽和重曹水(50ml)、水(50ml)で洗浄し、無水硫酸ナトリウムで乾燥後溶媒を留去して1.04g(66%)の標記化合物(G)を淡黄色固体として得た。得られた化合物(G)の物性は以下の通りである。
【0117】
融点:42−44℃
1H−NMR(CDCl3)δ:3.98(3H,s,−COOCH3),8.08(1H,ddd,J=6,9,10Hz,H−6)
【0118】
参考例8
3−シアノ−2,5−ジフルオロ−4−[4−(2−メトキシフェニル)−1−ピペラジニル]安息香酸メチルエステル(H)の合成
【0119】
【化27】
【0120】
3−シアノ−2,4,5−トリフルオロ安息香酸メチルエステル(G)(3.11g,14.5mmol)、1−(2−メトキシフェニル)ピペラジン(2.98g,15.5mmol)、トリエチルアミン(3.29ml,21.7mmol)をジメチルスルホキシド(15ml)に溶解し、室温で2時間撹拌した。反応液に水(300ml)を加えて酢酸エチル(200ml+2×100ml)で抽出した。有機層を水洗(3×150ml)し、無水硫酸ナトリウムで乾燥後、溶媒を留去した。残留物をイソプロピルエーテルで洗い、5.18g(92%)の標記化合物(H)を淡黄色結晶として得た。得られた化合物(H)の物性は以下の通りである。
【0121】
融点:130−134℃
1H−NMR(CDCl3)δ:3.22−3.24(4H,m,−CH2−×2),3.73−3.75(4H,m,−CH2−×2),3.89(3H,s,−OCH3),3.93(3H,s,−COOCH3),6.94−6.98(3H,m,aromatic H),7.02−7.06(1H,m,aromatic H),7.76(1H,dd,J=6.8,13Hz,H−6)
IR:νmax(KBr):1730,1710(cm-1)
元素分析値:C20H19F2N3O3として
計算値:C,62.01;H,4.94;N,10.89
分析値:C,61.77;H,5.00;N,10.65
【0122】
参考例9
3−アミノメチル−2,5−ジフルオロ−4−[4−(2−メトキシフェニル)−1−ピペラジニル]安息香酸メチルエステル(I)の合成
【0123】
【化28】
【0124】
3−シアノ−2,5−ジフルオロ−4−[4−(2−メトキシフェニル)−1−ピペラジニル]安息香酸メチルエステル(H)(5.18g,13.4mmol)、ラネーニッケル(20ml)、エタノール(200ml)を混合し、1気圧水素雰囲気下で23時間撹拌した。触媒を濾別して濾液を減圧濃縮し、残留物をイソプロピルエーテルで洗い、4.08g(78%)の無色結晶を得た。母液を減圧乾固して683mg(13%)の標記化合物(I)を無色結晶として得た。得られた化合物(I)の物性は以下の通りである。
【0125】
融点:115−116℃
1H−NMR(CDCl3)δ:3.20(4H,broad s,−CH2−×2),3.38(4H,m,−CH2−×2),3.89(3H,s,−OCH3),3.92(3H,s,−COOCH3),4.00(2H,d,J=2Hz,−CH2NH2),6.88−7.03(4H,m,aromatic H),7.53(1H,dd,J=6.8,12Hz,H−6)
【0126】
参考例10
3−第三級ブトキシカルボニルアミノメチル−2,5−ジフルオロ−4−[4−(2−メトキシフェニル)−1−ピペラジニル]安息香酸メチルエステル(J)の合成
【0127】
【化29】
【0128】
3−アミノメチル−2,5−ジフルオロ−4−[4−(2−メトキシフェニル)−1−ピペラジニル]安息香酸メチルエステル(I)(4.71g,12.0mmol)をテトラヒドロフラン(150ml)に溶解し、Boc2O(2.63g,12.0mmol)のテトラヒドロフラン溶液(30ml)を滴下した後、室温で15時間撹拌した。反応液を減圧濃縮して残留物をシリカゲルカラムクロマトグラフィーに付し、クロロホルムで溶出して6.01g(定量的)の標記化合物(J)を無色アモルファスとして得た。得られた化合物(J)の物性は以下の通りである。
【0129】
1H−NMR(CDCl3)δ:1.43(9H,s,−COOC(CH3)3)3.23(4H,broad s,−CH2−×2),3.34(4H,broad s,−CH2−×2),3.89(3H,s,−OCH3),3.92(3H,s,−COOCH3),4.55(2H,broad,−CH2NHBoc),5.06(1H,broad,−NHBoc),6.88−7.05(4H,m,aromatic H),7.57(1H,dd,J=6.8,12Hz,H−6)
【0130】
参考例11
3−第三級ブトキシカルボニルアミノメチル−2,5−ジフルオロ−4−[4−(2−メトキシフェニル)−1−ピペラジニル]安息香酸(K)の合成
【0131】
【化30】
【0132】
3−第三級ブトキシカルボニルアミノメチル−2,5−ジフルオロ−4−[4−(2−メトキシフェニル)−1−ピペラジニル]安息香酸メチルエステル(J)(6.01g,12.2mmol)をメタノール(200ml)に溶解し、1規定水酸化ナトリウム水溶液(18.3ml)を加え、 室温で17時間撹拌した。反応液を減圧濃縮し、残留物を水(100ml)に溶解した。10%クエン酸水溶液で酸性とし、酢酸エチル(200ml)で抽出した。有機層を水洗(2×200ml)し、無水硫酸ナトリウムで乾燥後、溶媒を留去して5.57g(97%)の標記化合物(K)を無色アモルファスとして得た。得られた化合物(K)の物性は以下の通りである。
【0133】
1H−NMR(CDCl3)δ:1.44(9H,s,−COOC(CH3)3),3.22(4H,broad s,−CH2−×2),3.38(4H,broad s,−CH2−×2),3.89(3H,s,−OCH3),4.55(2H,broad s,−CH2NHBoc),5.10(1H,broads,−NHBoc),6.88−7.05(4H,m,aromatic H),7.64(1H,dd,J=6.8,12Hz,H−6)
【0134】
参考例12
エチル 3−第三級ブトキシカルボニルアミノメチル−2,5−ジフルオロ−4−[4−(2−メトキシフェニル)−1−ピペラジニル]ベンゾイルアセタアート(L)の合成
【0135】
【化31】
【0136】
マグネシウム(0.340g,14.0mmol)とエタノール(50ml)を混合し、四塩化炭素(0.5ml)を加えて室温で1時間撹拌した。これにエチル 水素 マロナート(1.85g,14.0mmol)のテトラヒドロフラン溶液(20ml)を滴下して室温で2時間撹拌した。反応液を減圧乾固し、残留物をテトラヒドロフラン(150ml)に溶解した。
3−第三級ブトキシカルボニルアミノメチル−2,5−ジフルオロ−4−[4−(2−メトキシフェニル)−1−ピペラジニル]安息香酸(K)(5.57g,11.7mmol)をテトラヒドロフラン(80ml)に溶解し、N,N’−カルボニルジイミダゾール(2.08g,12.8mmol)を加えて室温で6時間撹拌した。これにエチル 水素 マロナート マグネシウム塩のテトラヒドロフラン溶液を滴下し、室温で16時間撹拌した。反応液を減圧乾固し、残留物にクロロホルム(200ml)、10%クエン酸水溶液(200ml)を加え撹拌した。有機層を分取し、水層をクロロホルム(100ml)抽出した。合わせた有機層を水洗(200ml)し、無水硫酸ナトリウムで乾燥後溶媒を留去した。残留物をシリカゲルカラムクロマトグラフィーに付し、n−ヘキサン−酢酸エチル(3:1)で溶出して3.58g(56%)の標記化合物(L)を淡黄色アモルファスとして得た。得られた化合物(L)の物性は以下の通りである。
【0137】
【0138】
参考例13
エチル 2−[3−第三級ブトキシカルボニルアミノメチル−2,5−ジフルオロ−4−[4−(2−メトキシフェニル)−1−ピペラジニル]ベンゾイル]−3−メチルアミノアクリレート(M)の合成
【0139】
【化32】
【0140】
エチル 3−第三級ブトキシカルボニルアミノメチル−2,5−ジフルオロ−4−[4−(2−メトキシフェニル)−1−ピペラジニル]ベンゾイルアセタアート(L)(703mg,1.28mmol)をベンゼン(30ml)に溶解し、ジメチルホルムアミド ジメチルアセタール(0.852ml,6.42mmol)を加えて1時間加熱環流した。ジメチルホルムアミド ジメチルアセタール(0.852ml,6.42mmol)を追加し、さらに2.5時間加熱環流した後、溶媒を留去した。残留物をトルエンに溶解し、メチルアミン塩酸塩(402mg,4.93mmol)、トリエチルアミン(1.03ml,7.39ml)を加えて室温で17時間撹拌した。反応液を水洗(50ml)し、無水硫酸ナトリウムで乾燥後溶媒を留去した。残留物をフラッシュカラムに付し、n−ヘキサン−酢酸エチル(1:1)で溶出して643mg(86%)の標記化合物(M)を無色アモルファスとして得た。得られた化合物(M)の物性は以下の通りである。
【0141】
【0142】
実施例5
エチル 8−第三級ブトキシカルボニルアミノメチル−1,4−ジヒドロ−6−フルオロ−7−[4−(2−メトキシフェニル)−1−ピペラジニル]−1−メチル−4−オキソキノリン−3−カルボキシラート(5−1)の合成
【0143】
【化33】
【0144】
A)
エチル 2−[3−第三級ブトキシカルボニルアミノメチル−2,5−ジフルオロ−4−[4−(2−メトキシフェニル)−1−ピペラジニル]ベンゾイル]−3−メチルアミノアクリレート(M)(643mg,1.09mmol)をジメチルホルムアミド(10ml)に溶解し、60%水素化ナトリウム(88mg,2.20mmol)を加えて20分間撹拌した。反応液を氷水(100ml)に注加し、析出した結晶を濾取した。析出物をクロロホルムに溶解し、無水硫酸ナトリウムで乾燥後溶媒を留去した。残留物をシリカゲルカラムクロマトグラフィーに付してクロロホルムで溶出し、248mgの黄色アモルファスを得た(構造不明)。クロロホルム−メタノール(95:5)で溶出し、187mg(30%)の標記化合物(5−1)を無色結晶として得た。得られた化合物(5−1)の物性は以下の通りである。
【0145】
融点:178−181℃
1H−NMR(CDCl3)δ:1.43(3H,t,J=7.3Hz,−CH2CH3),1.56(9H,s,−COOC(CH3)3),2.9−3.8(8H,broad,−CH2−×4),3.90(3H,s,−OCH3),4.06(3H,s,N1−CH3),4.40(2H,q,J=7.3Hz,−CH2CH3),4.78(2H,d,J=4.4Hz,−CH2NHBoc),4.90(1H,broad,−NHBoc),6.90−7.04(4H,m,aromatic H),8.20(1H,d,J=12Hz,H−5),8.42(1H,s,H−2)(AX02563A)
IR:νmax(KBr):3280,3072,1728,1698,1620(cm-1)
元素分析値:C30H37FN4O6として
計算値:C,63.37;H,6.56;N,9.85
分析値:C,62.95;H,6.59;N,9.43
【0146】
B)
エチル 2−[3−第三級ブトキシカルボニルアミノメチル−2,5−ジフルオロ−4−[4−(2−メトキシフェニル)−1−ピペラジニル]ベンゾイル]−3−メチルアミノアクリレート(M)(1.04g,1.77mmol)をジメチルホルムアミド(30ml)に溶解し、炭酸カリウム(488mg,3.53mmol)を加えて室温で20時間撹拌した。反応液を減圧乾固し、残留物に10%クエン酸水溶液(70ml)を加え酢酸エチル(200ml)で抽出した。有機層を水(2×50ml)、飽和食塩水(50ml)で洗浄後、無水硫酸ナトリウムで乾燥し溶媒を留去した。残留物をイソプロピルエーテルで洗い936mg(93%)の標記化合物(5−1)を無色結晶として得た。
【0147】
実施例6
8−第三級ブトキシカルボニルアミノメチル−1,4−ジヒドロ−6−フルオロ−7−[4−(2−メトキシフェニル)−1−ピペラジニル]−1−メチル−4−オキソキノリン−3−カルボン酸(6−1)の合成
【0148】
【化34】
【0149】
エチル 8−第三級ブトキシカルボニルアミノメチル−1,4−ジヒドロ−6−フルオロ−7−[4−(2−メトキシフェニル)−1−ピペラジニル]−1−メチル−4−オキソキノリン−3−カルボキシラート(5−1)(142mg,0.250mg)をエタノール(30ml)に溶解し、1規定水酸化ナトリウム水溶液(0.50ml)を加えて18時間加熱環流した後、反応液を減圧濃縮した。残留物に10%クエン酸水溶液を加えて酢酸エチルで抽出(100ml)し、有機層を飽和食塩水(2×50ml)で洗浄した。抽出液を無水硫酸ナトリウムで乾燥後、溶媒を留去し、142mgの淡黄色結晶を得た。イソプロピルエーテルで洗い、124mg(92%)の標記化合物(6−1)を無色結晶として得た。得られた化合物(6−1)の物性は以下の通りである。
【0150】
融点:163−166℃
1H−NMR(CDCl3)δ:1.45(9H,s,−COOC(CH3)3)
,3.0−3.5(8H,broad,−CH2−×4),3.91(3H,s,−OCH3),4.18(3H,s,N1−CH3),4.85(3H,broad s,−CH2NHBoc,−NHBoc),6.90−7.26(4H,m,aromatic H),8.15(1H,d,J=12Hz,H−5),8.64(1H,s,H−2)
IR:νmax(KBr):1710,1620(cm-1)
元素分析値:C28H33FN4O6として
計算値:C,62.21;H,6.15;N,10.36
分析値:C,61.92;H,6.09;N,10.05
【0151】
実施例7
8−アミノメチル−1,4−ジヒドロ−6−フルオロ−7−[4−(2−メトキシフェニル)−1−ピペラジニル]−1−メチル−4−オキソキノリン−3−カルボン酸二塩酸塩(7−1)の合成
【0152】
【化35】
【0153】
8−第三級ブトキシカルボニルアミノメチル−1,4−ジヒドロ−6−フルオロ−7−[4−(2−メトキシフェニル)−1−ピペラジニル]−1−メチル−4−オキソキノリン−3−カルボン酸(6−1)(118mg,0.218mmol)に濃塩酸(5ml)を加えて室温で15分間撹拌した後、水(20ml)を加えて減圧乾固した。残留物を含水エタノールから再結晶し、90.2mg(80%)の標記化合物(7−1)を無色結晶として得た。得られた化合物(7−1)の物性は以下の通りである。
【0154】
融点:248−250℃
1H−NMR(D2O)δ:3.4−4.0(8H,broad,4×−CH2−),3.97(3H,s,−OCH3),4.25(3H,s,N1−CH3),7.10−7.30(2H,m,aromatic H),7.30−7.70(2H,m,aromatic H),8.21(1H,d,J=12Hz,H−5),8.97(1H,s,H−2)
IR:νmax(KBr):1726,1618,1606,1502,1468,1432(cm-1)
元素分析値:C23H25FN4O4・2HClとして
計算値:C,53.81;H,5.30;N,10.91
分析値:C,53.82;H,5.21;N,10.72
【0155】
実施例8
エチル 8−アミノメチル−1,4−ジヒドロ−6−フルオロ−7−[4−(2−メトキシフェニル)−1−ピペラジニル]−1−メチル−4−オキソキノリン−3−カルボキシラート(8−1)の合成
【0156】
【化36】
【0157】
エチル 8−第三級ブトキシカルボニルアミノメチル−1,4−ジヒドロ−6−フルオロ−7−[4−(2−メトキシフェニル)−1−ピペラジニル]−1−メチル−4−オキソキノリン−3−カルボキシラート(5−1)(75.5mg,0.132mmol)にトリフルオロ酢酸(5ml)を加えて室温で15分間撹拌した後、減圧乾固した。残留物に飽和重曹水(50ml)を加えクロロホルム抽出(3×50ml)した。抽出液を飽和食塩水で洗浄し、無水硫酸ナトリウムで乾燥後溶媒を留去し、70.1mgの標記化合物(8−1)を無色アモルファスとして得た。得られた化合物(8−1)の物性は以下の通りである。
【0158】
1H−NMR(CDCl3)δ:1.42(3H,t,J=7.3Hz,−CH2CH3),2.8−3.8(8H,broad,−CH2−×4),3.91(3H,s,−OCH3),4.26(2H,s,−CH2NH2),4.29(3H,s,N1−CH3),4.40(2H,q,J=7.3Hz,−CH2CH3),6.90−7.06(4H,m,aromatic H),8.15(1H,d,J=12Hz,H−5),8.44(1H,s,H−2)
【0159】
実施例9
エチル 8−ジメチルアミノメチル−1,4−ジヒドロ−6−フルオロ−7−[4−(2−メトキシフェニル)−1−ピペラジニル]−1−メチル−4−オキソキノリン−3−カルボキシラートの(9−1)の合成
【0160】
【化37】
【0161】
エチル 8−アミノメチル−1,4−ジヒドロ−6−フルオロ−7−[4−(2−メトキシフェニル)−1−ピペラジニル]−1−メチル−4−オキソキノリン−3−カルボキシラート(8−1)(70.1mg)、パラホルムアルデヒド(30mg)、5%パラジウム炭素(100mg)、エタノール(30ml)を混合し、1気圧水素雰囲気下、2日間撹拌した。触媒を濾去し、濾液を減圧濃縮した。残留物をプレパラティブTLC(展開溶媒;クロロホルム−メタノール95:5)で精製し、30.0mgの標記化合物(9−1)を無色結晶として得た。得られた化合物(9−1)の物性は以下の通りである。
【0162】
融点:187−190℃
1H−NMR(CDCl3)δ:1.41(3H,t,J=7.3Hz,−CH2CH3),2.01(6H,s,−N(CH3)2),3.0−3.5(8H,broad,−CH2−×4),3.90(3H,s,−OCH3),4.12(5H,s,−CH2NH2,N1−CH3),4.40(2H,q,J=7.3Hz,−CH2CH3),6.90−7.03(4H,m,aromatic H),8.17(1H,d,J=12Hz,H−5),8.39(1H,s,H−2)
【0163】
実施例10
8−ジメチルアミノメチル−1,4−ジヒドロ−6−フルオロ−7−[4−(2−メトキシフェニル)−1−ピペラジニル]−1−メチル−4−オキソキノリン−3−カルボン酸(7)の合成
【0164】
【化38】
【0165】
エチル 8−ジメチルアミノメチル−1,4−ジヒドロ−6−フルオロ−7−[4−(2−メトキシフェニル)−1−ピペラジニル]−1−メチル−4−オキソキノリン−3−カルボキシラート(9−1)(65.4mg,0.132mmol)をエタノール(20ml)に溶解し、1規定水酸化ナトリウム水溶液(0.263ml)を加え、16時間加熱環流した。反応液を減圧乾固し、残留物を水(10ml)に溶解して1規定塩酸(0.263ml)を加え、クロロホルムで抽出(2×50ml)した。抽出液を無水硫酸ナトリウムで乾燥後溶媒を留去した。残留物をイソプロパノールから再結晶し、40.8mg(66%)の標記化合物(7)を無色結晶として得た。得られた化合物(7)の物性は以下の通りである。
【0166】
融点:274−279℃
1H−NMR(CDCl3)δ:1.99(6H,s,−N(CH3)2),3.1−3.6(8H,broad,−CH2−×4),3.91(3H,s,−OCH3),4.04(3H,s,N1−CH3),6.91−7.07(4H,m,aromatic H),8.13(1H,d,J=12Hz,H−5),8.61(1H,s,H−2)14.87(1H,s,−COOH)
IR:νmax(KBr):1732,1616,1436(cm-1)
元素分析値:C25H29FN4O4として
計算値:C,63.42;H,5.99;N,12.33
分析値:C,63.39;H,6.01;N,12.18
【0167】
実施例11
エチル 1,4−ジヒドロ−6−フルオロ−7−[4−(2−メトキシフェニル)−1−ピペラジニル]−8−(4−ニトロフェニルスルホニルアミノメチル)−1−メチル−4−オキソキノリン−3−カルボキシラート(11−1)の合成
【0168】
【化39】
【0169】
エチル 8−アミノメチル−1,4−ジヒドロ−6−フルオロ−7−[4−(2−メトキシフェニル)−1−ピペラジニル]−1−メチル−4−オキソキノリン−3−カルボキシラート(8−1)(320mg,0.687mmol)をジクロロメタン(50ml)に溶解し、2,6−ルチジン(0.190ml,1.65mmol)、p−ニトロベンゼンスルホニルクロリド(182mg,0.825mmol)を加え、室温で18時間撹拌した。反応液を水洗(2×100ml)し、無水硫酸ナトリウムで乾燥後溶媒を留去した。残留物をシリカゲルカラムクロマログラフィーに付し、クロロホルム−メタノール(95:5)で溶出し、408mg(91%)の標記化合物(11−1)を黄色結晶として得た。得られた化合物(11−1)の物性は以下の通りである。
【0170】
融点:137−142℃
1H−NMR(CDCl3)δ:1.44(3H,t,J=7.3Hz,−CH2CH3),2.5−3.8(8H,broad,−CH2−×4),3.88(3H,s,−OCH3),4.16(3H,s,−N1−CH3),4.35(2H,q,J=7.3Hz,−CH2CH3),4.66(2H,d,J=5.6Hz,−CH2NH−),6.31(1H,broad,−NHSO2−),6.69(1H,d,J=7Hz,aromatic H),6.90(1H,d,J=7Hz,aromatic H),7.00(1H,t,J=7Hz,aromatic H),7.09(1H,t,J=7Hz,aromatic H),7.85(1H,d,J=12Hz,H−5),8.21(2H,d,J=9Hz,aromatic H),8.35(1H,s,H−2),8.36(2H,d,J=9Hz,aromatic H)
【0171】
実施例12
エチル 1,4−ジヒドロ−6−フルオロ−7−[4−(2−メトキシフェニル)−1−ピペラジニル]−8−(N−メチル−N−4−ニトロフェニルスルホニルアミノメチル)−1−メチル−4−オキソキノリン−3−カルボキシラート(12−1)の合成
【0172】
【化40】
【0173】
エチル 1,4−ジヒドロ−6−フルオロ−7−[4−(2−メトキシフェニル)−1−ピペラジニル]−8−(4−ニトロフェニルスルホニルアミノメチル)−1−メチル−4−オキソキノリン−3−カルボキシラート(11−1)(402mg,0.615mmol)、ジメチルホルムアミド(10ml)、炭酸カリウム(266mg,1.93mmol)、ヨウ化メチル(80μl,1.29mmol)を混合して室温で3時間撹拌した。反応液を減圧乾固し、残留物に水30mlを加えてクロロホルム抽出(60ml)した。抽出液を無水硫酸ナトリウムで乾燥後、溶媒を留去して残留物をイソプロピルエーテルで洗い、384mg(94%)の標記化合物(12−1)を黄色結晶として得た。得られた化合物(12−1)の物性は以下の通りである。
【0174】
融点:282−284℃
1H−NMR(CDCl3)δ:1.43(3H,t,J=7.3Hz,−CH2CH3),2.10(3H,s,−NCH3SO2−),2.7−2.9(4H,broad,−CH2−×2),3.2−3.4(4H,broad,−CH2−×2),3.86(3H,s,−OCH3),4.24(3H,s,−N1CH3),4.42(2H,q,J=7.3Hz,−CH2CH3),4.91(2H,s,−CH2N−),6.59(1H,d,J=8Hz,aromatic H),6.89(1H,d,J=8Hz,aromatic H),6.99(1H,t,J=8Hz,aromatic H),7.08(1H,t,J=8Hz,aromatic H),8.07(2H,d,J=9Hz,aromatic H),8.24(1H,d,J=12Hz,H−5),8.45(2H,d,J=9Hz,aromatic H),8.46(1H,s,H−2),
IR:νmax(KBr):1720,1610,1532,1498,1440(cm-1)
元素分析値:C32H34FN5O8Sとして
計算値:C,53.81;H,5.30;N,10.91
分析値:C,53.82;H,5.21;N,10.72
【0175】
実施例13
エチル 1,4−ジヒドロ−6−フルオロ−7−[4−(2−メトキシフェニル)−1−ピペラジニル]−1−メチル−8−メチルアミノメチル−4−オキソキノリン−3−カルボキシラート(13−1)の合成
【0176】
【化41】
【0177】
エチル 1,4−ジヒドロ−6−フルオロ−7−[4−(2−メトキシフェニル)−1−ピペラジニル]−8−(N−メチル−N−4−ニトロフェニルスルホニルアミノメチル)−1−メチル−4−オキソキノリン−3−カルボキシラート(12−1)(377mg,0.589mmol)をジメチルホルムアミド(5ml)に溶解し、炭酸カリウム(244mg,1.77mmol)、チオフェノール(73μl,0.707mmol)を加えて室温で22時間撹拌した。反応液を減圧乾固し、残留物に水(30ml)を加え酢酸エチル(100ml)で抽出した。抽出液を水洗(3×30ml)し、無水硫酸ナトリウムで乾燥後、溶媒を留去して211mg(79%)の標記化合物(13−1)を淡黄色油状物として得た。得られた化合物(13−1)の物性は以下の通りである。
【0178】
1H−NMR(CDCl3)δ:1.41(3H,t,J=7.3Hz,−CH2CH3),2.51(3H,s,−NCH3),2.8−3.2(4H,broad,−CH2−×2),3.25−3.8(4H,broad,−CH2−×2),3.90(3H,s,−OCH3),4.29(3H,s,N1−CH3),4.42(2H,q,J=7.3Hz,−CH2CH3),6.90−7.07(4H,m,aromatic H),8.16(1H,d,J=12Hz,H−5),8.43(1H,s,H−2)
【0179】
実施例14
1,4−ジヒドロ−6−フルオロ−7−[4−(2−メトキシフェニル)−1−ピペラジニル]−1−メチル−8−メチルアミノメチル−4−オキソキノリン−3−カルボン酸(14−1)の合成
【0180】
【化42】
【0181】
エチル 1,4−ジヒドロ−6−フルオロ−7−[4−(2−メトキシフェニル)−1−ピペラジニル]−1−メチル−8−メチルアミノメチル−4−オキソキノリン−3−カルボキシラート(13−1)(211mg,0.464mmol)、エタノール(20ml)、1規定水酸化ナトリウム(0.982ml,0.982mmol)を混合して18時間加熱環流した。反応液を減圧乾固し、残留物を水(10ml)に溶解して塩酸でpH7.4とし、クロロホルム抽出した。抽出液を無水硫酸ナトリウムで乾燥後、溶媒を留去した。残留物をエタノールから再結晶して94.9mg(44%)の標記化合物(14−1)を無色結晶として得た。得られた化合物(14−1)の物性は以下の通りである。
【0182】
融点:217−218℃
1H−NMR(CDCl3)δ:2.51(3H,broad,−NH(CH3)),2.8−3.8(8H,broad,−CH2−×4),3.91(3H,s,−OCH3),4.42(3H,s,N1−CH3),6.91−7.08(4H,m,aromatic H),8.14(1H,d,J=12Hz,H−5),8.66(1H,s,H−2)
IR:νmax(KBr):1728,1616,1500,1464(cm-1)
元素分析値:C24H27FN4O4・H2Oとして
計算値:C,62.19;H,6.09;N,12.09
分析値:C,62.16;H,5.88;N,11.89
【0183】
試験例1
実施例1、3、4および10で製造した化合物(4)〜(7)を用いてICAM−1産生阻害試験を行った。対照として次式
【0184】
【化43】
【0185】
で表わされるベンゾチオフェン誘導体を用いた。
【0186】
96穴マイクロプレートの各ウエルにHuman umblical vein endotherial cells(HUBIC)を8×103個ずつ播種し、5%CO2 存在下、37℃で48時間前培養した。48時間後、各ウエルにhuman-TNF−αを最終濃度が1000U/mlになるように、また、各試験検体を最終濃度が0.05,0.5,5μg/mlになるように、それぞれ50μlずつ加え、5%CO2 存在下、37℃でさらに4時間培養した。細胞を0.1%BSA含有Hank's Balanced Salt Solution(HBSS)で5回洗浄後、1μg/mlに調製したマウス抗ヒトICAM−1抗体を10μlずつ各ウエルに加え、室温で45分間反応させた。反応終了後、細胞を0.1%BSA含有HBSSで5回洗浄し、ペルオキシダーゼ標識マウスIgの3000倍希釈液を各ウエルに100μlずつ加え、室温でさらに90分反応させた。細胞を0.1%BSA含有HBSSで5回洗浄後、各ウエルに反応基質としてABTS Peroxidase Substrate System(ABTS)を100μlずつ加え、室温で20分反応した。反応停止は、1%SDS溶液50μlずつを各ウエルに加えることにより行った。反応停止後、吸光度計を用い、吸収波長405nmで各ウエルの溶液の発色割合を測定した。結果を図1に示す。
【0187】
対照化合物であるベンゾチオフェン誘導体は0.05μg/mlでICAM−1産生を阻害した。この阻害効果は文献記載値(Boshelli, D. H., Karmer, J. B., Connor, D. T., Lesch, M. E., Schrier, D. J., Ferin, M. A., Wright, C. D.:J. Med. Chem. 37, 7176-718(1994))とほぼ同等であると判断された。一方、試験化合物(4)〜(7)はいずれも5μg/mlでICAM−1産生阻害効果を示し、そのうち化合物(6)が最も強い阻害活性を示し、0.05μg/mlでほぼ完全にICAM−1産生を阻害した。
【0188】
試験例2
化合物(4)〜(7)を用いて、TNF−α刺激によるOM−10.1細胞からのp24蛋白質産生阻害試験を行った。HIV全遺伝子を組み込んだOM−10.1細胞を1×105/mlに調製し、試験薬剤存在下で2時間preincubation した後、TNF−αを10U/mlの濃度になるように加え、細胞を刺激した。5%CO2 存在下、37℃で3日間培養後、培養上清中のp24抗原量をELISAキットで測定し、その50%阻害濃度をEC50で示した。結果を表1に示す。
【0189】
【表1】
【0190】
化合物(4)〜(7)はいずれもTNF−α刺激によりOM−10.1細胞から産生するp24蛋白質を0.17μM以下の低濃度で阻害した。なかでも化合物(6)はEC50値が0.017μMと最も強い阻害活性を示した。
【0191】
試験例3
化合物(4)〜(7)を用いて、抗HIV活性試験を行った。MT−4細胞の1×105 cells/ml懸濁液に、MOI:0.02の割合でHIV−1・III Bを感染させ、その感染細胞液を各薬剤の2倍段階希釈液の入っている96穴マイクロプレートに等量ずつ分注し、37℃で4日間培養した。培養終了後MTT法(Pauwels, R. et. al.,:J. Virol. Methods, 20, 309-321(1988))を用いて各薬剤の抗HIV効果を測定し、その50%阻害濃度をEC50で示した。結果を表2に示す。
【0192】
【表2】
【0193】
化合物(4)〜(7)はMT4細胞を用いた急性感染系でもEC50値が0.54μM以下の強いHIV増殖抑制効果を示した。なかでも化合物(6)はそのEC50値が0.025μMと低濃度で抗HIV効果を示した。また、上記したように化合物(4)〜(7)のICAM−1産生阻害活性、TNF−α刺激によるOM−10.1細胞からのp24蛋白質産生阻害活性、および抗HIV活性の強さはほぼ相関していた。
【0194】
【発明の効果】
本発明によれば、TNF−αの誘導効果に起因する種々の疾患、例えば慢性関節リウマチ、セプティックショック、潰瘍性大腸炎等、あるいはHIV遺伝子の複製・転写の促進によるAIDSの発症を押さえること等に有効性を示す、TNF−α誘導効果阻害剤を得ることができる。
【図面の簡単な説明】
【図1】 TNF−α誘導効果阻害剤による、ICAM−1の産生阻害を示す図である。[0001]
BACKGROUND OF THE INVENTION
The present invention inhibits various effects induced by TNF-α (tumor necrosis factor) such as various phenomena observed during inflammation such as cell differentiation / activation and fever, and HIV gene replication / transcription enhancement. -It relates to an α-inducing effect inhibitor.
[0002]
[Prior art]
TNF-α is a cytokine produced mainly from cells such as macrophages, and acts on many types of cells to differentiate / proliferate by inhibiting tumor cell division / anti-tumor activity, inhibiting hematopoiesis, and inducing apoptosis. It causes various functions and biological phenomena such as regulation of inflammation, increase in lymphocyte viscosity, bridging to the immune system by division of T lymphocytes, fever factors, inflammation and tissue repair by activation of phospholipase A2, and the like.
[0003]
Among these functions, for example, regarding inflammation, TNF-α acts on almost all cells involved in inflammation, and cytokines such as IL-6, IL-8, G-CSF, GM-CSF, M-CSF, Induces the production of cell adhesion molecules such as ICAM-1 and induces many phenomena observed during inflammation, such as prostaglandin E2, protease, acute phase protein, ACTH production, cell differentiation / activation, bone resorption, It is also considered to be involved in synovial proliferation and the like (Masatoshi Yamazaki: Cytokine 94—from basic to latest information; Nippon Medical Museum, 109-117 (1994), etc.).
[0004]
On the other hand, it has been pointed out that TNF-α may be deeply involved in the development or extension of AIDS in HIV-infected persons. That is, when HIV infects a cell, it is first incorporated into the DNA of the host cell, from which self-gene replication is performed, and at that time, cytokines such as TNF-α may promote the gene expression. (Gruters, RA, Otto, SA, Al, BJM, Verhoeven, AJ, Verweij, CL, Van Lier, RA, W., Miedama, F .: Fur. J. Immunol., 21, 167-172 (1991), etc. ). In fact, it has been confirmed that when a persistently infected cell in which the HIV gene is incorporated is treated with TNF-α, replication and transcription of the HIV gene are markedly enhanced (Butera, ST, Folks, TM: AIDS Res. Hum Retroviruses, 8, 991-995 (1992)).
[0005]
[Problems to be solved by the invention]
From the above findings, any compound capable of selectively inhibiting various cytokines and the like produced and induced by TNF-α will be induced by TNF-α, such as various diseases involving inflammation and HIV gene expression. There is a possibility of showing effectiveness in suppression.
[0006]
Accordingly, an object of the present invention is to provide an inhibitory effect inhibitor by TNF-α.
[0007]
[Means for Solving the Problems]
In view of this situation, the present inventors have conducted intensive research to achieve the above object, and as a result, the compound represented by the following general formula (1) or a salt thereof effectively inhibits various effects induced by TNF-α. As a result, the present invention has been completed.
[0008]
That is, the present invention relates to the general formula (1)
[0009]
Embedded image
[0010]
[Wherein R1Is linear or branched C1-6Alkyl group, 2-halogenocyclopropyl groupOr(1,2,4-triazol-1-yl) -C1-6Represents an alkylphenyl group;
RFiveIs a phenyl groupOrC1-6Represents an alkoxyphenyl group;
R7May have a halogen atom as a substituent1-6C which may have an alkyl group or a halogen atom as a substituent1-6An alkoxyl group,Or 1Or 2 C1-6An aminomethyl group optionally having an alkyl group as a substituent;
X represents a hydrogen atom or a halogen atom;
Z is a carbon atomOrThe partial structure represented by a nitrogen atom is shown. However, when Z is a partial structure represented by a nitrogen atom, R7Is 1 or 2 C1-6It is an aminomethyl group which may have an alkyl group as a substituent. ]
Of TNF-α containing a compound represented by the formula or salt thereof as an active ingredientOf ICAM-1 derived fromInhibitors are provided.
[0022]
DETAILED DESCRIPTION OF THE INVENTION
The substituent of the compound represented by the general formula (1) having the ability to inhibit the TNF-α induction effect of the present invention is described below. In the present specification, for example, “C1-6"Indicates that the number of carbon atoms is 1 to 6.
[0023]
Substituent R1Is a straight chainOrBranched C1-6An alkyl group,2-halogenocyclopropyl group or (1,2,4-triazol-1-yl) -C 1-6 Represents an alkylphenyl group; here,As the alkyl group, a methyl group and an ethyl group are preferable.
[0024]
(1,2,4-triazol-1-yl) -C1-6Alkyl groupThe alkyl part of may be linear, branched or cyclic, andA til group is most preferred.
[0034]
In general formula (1), RFiveIsPhenyl group or C 1-6 An alkoxyphenyl group is shown. MaPhenyl groupaboveIn that positionthisThere may be a substituent.
[0036]
X is a halogen atom or a hydrogen atom, and in the case of a halogen atom, a fluorine atom is preferable, and among these, X is preferably a fluorine atom or a hydrogen atom.
[0039]
R 7 Indicated byRuC which may have a rogen atom as a substituent1-6Alkyl group or C1-6The halogen atom in the alkoxyl group is preferably a fluorine atom or a chlorine atom, particularly preferably a fluorine atom. The alkyl group or alkoxyl group having a fluorine atom as a substituent is preferably a linear alkyl group or alkoxyl group. The number of fluorine atoms on the alkyl group or alkoxyl group is not particularly limited, and may be mono-substituted to perfluoro-substituted. Specifically, fluoroalkyl groups such as monofluoromethyl group, difluoromethyl group, trifluoromethyl group, 2,2,2-trifluoroethyl group; monofluoromethoxy group, difluoromethoxy group, trifluoromethoxy group2, 2,2-trifluoroethoxy groups and the like.
[0045]
Of the present inventionICAM-1 production inhibitor derived from induction of TNF-αPreferable specific examples of the compounds include compounds represented by the following formulas (4) to (7) or salts thereof.
[0046]
Embedded image
[0047]
The compound of the formula (1) can be produced, for example, according to the following reaction formula.
[0048]
[Chemical 1]
[0049]
[Wherein X ′ is, for example, a fluorine atom, a chlorine atom, a bromine atom, C1-3A substituent having a function as a leaving group such as an alkylsulfonyl group, or an arylsulfonyl group such as a benzenesulfonyl group or a toluenesulfonyl group, and Y ′ isHydroxyl group, C 1-6 Alkoxy groupOr formula (10):
[0050]
Embedded image
[0051]
(Wherein R9And RTenRepresents a fluorine atom or a lower alkylcarbonyloxy group. And a boron-containing substituent represented by R)1 , R Five , R 7 , X andZIs the same as above]
[0052]
That is, it can be produced by reacting the compound represented by the general formula (8) with the compound represented by the formula (9) or an acid addition salt thereof.
[0053]
Y 'C 1-6 Alkoxy groupIn this case, the conversion to the corresponding carboxylic acid is carried out in the presence of an acid or base used for the usual hydrolysis of the carboxylic acid ester. When deprotection is required, the protecting group is used under appropriate conditions corresponding to the protecting group. Can be removed to obtain the target compound represented by the formula (1).
[0054]
In the compound of the formula (8), when Y ′ is a compound represented by the formula (10), the corresponding carboxylic acid is obtained by treating with the compound of the formula (9) and then treating with an acidic or basic compound. Can be converted to
[0055]
The reaction of the compound of formula (8) and the compound of formula (9) can be carried out without solvent or in an inert solvent. Examples of the inert solvent include dimethyl sulfoxide, pyridine, acetonitrile, triethylamine, ethanol, chloroform, dimethylformamide, dimethylacetamide, N-methylpyrrolidone, tetrahydrofuran, water, and 3-methoxybutanol. Alternatively, these solvents may be used as a mixture.
[0056]
The reaction temperature is usually in the range of room temperature to 200 ° C, preferably in the range of 25 ° C to 150 ° C. The reaction time is 30 minutes to 48 hours, and is usually completed in about 30 minutes to 2 hours.
[0057]
The reaction can be an acid acceptor such as an inorganic base or an organic base, for example, an alkali or alkaline earth metal carbonate or bicarbonate, or an organic basic such as triethylamine, pyridine, 1,8-diazabicycloundecene. It is advantageous to carry out in the presence of the compound.
[0058]
The compound of formula (1) may exist as an enantiomer or a diastereomer, but when the compound of the present invention is administered to humans or animals, it is preferable to administer a compound consisting of a single enantiomer or diastereomer. The term “consisting of a single enantiomer or diastereomer” is not limited to the case where no other enantiomer or diastereomer is contained, as long as the physical constant and physiological activity are not affected. It means that other enantiomers or diastereomers may be included.
[0059]
The compound (1) may be in a free form, but may be an acid addition salt of an inorganic acid or an organic acid or a salt of a carboxyl group. Examples of acid addition salts include inorganic acid salts such as hydrochloride, sulfate, nitrate, hydrobromide, hydroiodide, phosphate, acetate, methanesulfonate, benzene Examples thereof include organic acid salts such as sulfonate, toluenesulfonate, citrate, maleate, fumarate, and lactate.
[0060]
Examples of the carboxyl group salt include alkali metal salts such as lithium salt, sodium salt and potassium salt, alkaline earth metal salts such as magnesium salt and calcium salt, ammonium salt, triethylamine salt and N-methylglucamine salt, And tris- (hydroxylmethyl) aminomethane salt.
[0061]
In addition, the free form, acid addition salt and carboxyl group salt of these compounds (1) may each exist as a hydrate.
[0062]
On the other hand, the compound of the present invention in which the carboxylic acid moiety is an ester is useful as a synthetic intermediate or prodrug. Here, when used as a synthetic intermediate, for example, alkyl esters, benzyl esters, alkoxyalkyl esters, phenylalkyl esters and phenyl esters are preferred.
[0063]
In addition, when used as a prodrug, an ester that is easily cleaved in vivo to produce a free form of carboxylic acid is preferable. For example, acetoxymethyl ester, pivaloyloxymethyl ester, ethoxycarbonyl ester, choline ester Oxoalkyl esters such as dimethylaminoethyl ester, 5-indanyl ester, phthalidinyl ester, 5-alkyl-2-oxo-1,3-dioxol-4-ylmethyl ester, 3-acetoxy-2-oxobutyl ester Etc. are preferred.
[0065]
Compound (1) also has an inhibitory effect on ICAM-1 production caused by TNF-α, and suppresses various cell adhesions, so that diseases caused by cell adhesion based on ICAM-1 such as chronic It is useful as a therapeutic agent for inflammatory diseases such as rheumatoid arthritis and arthritis, ischemia-reperfusion injury of the myocardium, bronchial asthma, glomerulonephritis, and rejection at the time of organ transplantation.
[0066]
Compound (1)ICAM-1 production inhibitor derived from induction of TNF-αThe dose varies depending on the patient's age, sex, symptoms, etc., but it is preferably 5 mg to 2 g, preferably 50 mg to 1000 mg per adult day. In this case, the daily dose may be administered once or divided into 2 to 3 times per day, and the daily dose may exceed the above amount if necessary.
[0067]
Contains compound (1)ICAM-1 production inhibitor derived from induction of TNF-αThere are no particular restrictions on the administration method and dosage form, and the dosage form suitable for the administration method may be used in the preparation methods of various commonly used preparations.
[0068]
Examples of oral preparations include tablets, powders, granules, capsules, solutions, syrups, elixirs, and oily or aqueous suspensions.
[0069]
As an injection, after storing the solution in a container, it may be a preparation prepared at the time of use as a solid preparation by lyophilization or the like, and a stabilizer, preservative, or dissolution aid may be used as necessary. Further, each dose may be stored in a container, and multiple doses may be stored in the same container.
[0070]
Examples of external preparations include solutions, suspensions, emulsions, ointments, gels, creams, lotions, and sprays.
[0071]
Solid preparations include pharmaceutically acceptable additives as well as active compounds, such as fillers, extenders, binders, disintegrants, dissolution promoters, wetting agents, lubricants, etc. It can be selected and mixed as necessary to prepare a formulation.
[0072]
Examples of the liquid preparation include solutions, suspensions, emulsions and the like, and suspending agents, emulsifiers and the like may be included as additives.
[0073]
【Example】
EXAMPLES Next, although an Example is given and this invention is demonstrated further in detail, this invention is not limited to a following example.
[0074]
Example 1
8-Difluoromethoxy-1,4-dihydro-6-fluoro-1- (trans-2-fluorocyclopropyl) -7- [4- (2-methoxyphenyl) -1-piperazinyl] -4-oxoquinoline-3 -Synthesis of carboxylic acid (4)
[0075]
Embedded image
[0076]
8-Difluoromethoxy-1,4-dihydro-6,7-difluoro-1- (trans-2-fluorocyclopropyl) -4-oxoquinoline-3-carboxylic acid (1-8) (100 mg, 0.286 mmol) , 1- (2-methoxyphenyl) piperazine (1-9) (110 mg, 0.572 mmol), triethylamine (0.25 ml) and acetonitrile (5 ml) were mixed and heated to reflux for 4 hours. The reaction mixture was concentrated under reduced pressure, and the residue was crystallized from ethanol and collected by filtration to obtain 83.3 mg of the title compound (4) as colorless crystals. The physical properties of the obtained compound (4) are as follows.
[0077]
Melting point: 218-220 ° C
1H-NMR (CDClThree) Δ: 1.42-1.50 (1H, m), 1.90-2.01 (1H, m), 3.16-3.30 (4H, m), 3.50-3.37 ( 2H, m), 3.69-3.76 (2H, m), 3.91 (3H, s, -OCHThree), 4.43-4.50 (1H, m, N-CH), 4.64 (1H, dm, J = 61 Hz, -CHF-), 6.61 (1H, dd, J = 77 Hz, 72 Hz, -OCHF2), 6.91-7.22 (4H, m, aromatic H), 8.07 (1H, d, J = 12 Hz), 8.71 (1H, s, H-2), 14.34 (1H, broadcast, -COOH)
Elemental analysis value: Ctwenty fiveHtwenty threeFFourNThreeOFiveAs
Calculated values: C, 57.58; H, 4.45; N, 8.06
Analytical value: C, 57.37; H, 4.51; N, 7.90
[0078]
Reference example 1
Synthesis of 3,4-dehydro-4-phenylpiperidine (A-9)
[0079]
Embedded image
[0080]
4-Hydroxy-4-phenylpiperidine (497 mg, 2.80 mmol) is dissolved in toluene (50 ml), p-toluenesulfonic acid monohydrate (800 mg, 4.21 mmol) is added, and the mixture is heated to reflux for 23 hours for dehydration. did. The reaction mixture was evaporated to dryness, 1N aqueous sodium hydroxide solution (50 ml) was added to the residue, and the mixture was extracted with chloroform (2 × 50 ml). The organic layer was washed with saturated brine (2 × 50 ml), dried over anhydrous sodium sulfate, and the solvent was evaporated to obtain 447 mg (quantitative) of the title compound (A-9) as a pale yellow oil. The physical properties of the obtained compound (A-9) are as follows.
[0081]
1H-NMR (CDClThree) Δ: 2.47 (2H, m, —CH2−), 3.11 (2H, t, J = 6 Hz, −CH2-), 3.53 (2H, m, -CH2-), 6.14 (1H, m, = CH-), 7.22-7.40 (H, m, aromaticH)
[0082]
Reference example 2
Synthesis of 4-phenylpiperidine (B-9)
[0083]
Embedded image
[0084]
3,4-dehydro-4-phenylpiperidine (447 mg, 2.81 mmol), ethanol (50 ml), 5% palladium on carbon (325 mg) were mixed, and the mixture was stirred at room temperature for 15 hours under 1 atm hydrogen atmosphere. The catalyst was removed by filtration, and the filtrate was dried under reduced pressure to obtain 425 mg (94%) of the title compound (B-9) as colorless crystals. The physical properties of the obtained compound (B-9) are as follows.
[0085]
1H-NMR (CDClThree) Δ: 1.60-1.75 (2H, m), 2.58-2.66 (1H, m), 2.72-2.78 (2H, m), 3.18-3.21 ( 2H, m), 7.18-7.32 (5H, m)
[0086]
Example 2
Synthesis of 6-fluoro-1-methyl-4-oxo-7- (4-phenyl-1-piperidinyl) -8-trifluoromethoxy-1,4-dihydroquinoline-3-carboxylic acid (2-1)
[0087]
Embedded image
[0088]
6,7-difluoro-1-methyl-4-oxo-8-trifluoromethyl-1,4-dihydroquinoline-3-carboxylic acid (2-8) (87.2 mg, 0.284 mmol; JP-A-8-183775 No.), 4-phenylpiperidine (B-9) (68.6 mg, 0.425 mmol), triethylamine (119 μl, 0.852 mmol) and acetonitrile (4 ml) were mixed and heated to reflux for 17 hours. The reaction mixture was allowed to cool and the precipitated crystals were collected by filtration and recrystallized from ethanol to give 64.2 mg (50%) of the title compound (2-1) as colorless crystals. The physical properties of the obtained compound (2-1) are as follows.
[0089]
Melting point: 268.5-270 ° C
1H-NMR (CDClThree) Δ: 1.97 (4H, broadcast, 2 × -CH2-), 2.79-2.87 (1H, m), 3.79 (2H, broadcast, J = 12.7 Hz, -CH2-), 4.02 (2H, broadcast, -CH2−), 7.23-7.37 (5H, m, aromatic H), 8.16 (1H, d, J = 12 Hz, H-5), 8.63 (1H, s, H-2), 14 .63 (1H, broadcast, -COOH)
IR: νmax(KBr): 1734, 1618, 1488 (cm-1)
Elemental analysis value: Ctwenty threeH20FFourN2OThree・ 1 / 4H2As O
Calculated values: C, 60.99; H, 4.56; N, 6.19
Analytical value: C, 60.94; H, 4.63; N, 6.24
[0090]
Example 3
7- (3,4-dehydro-4-phenyl-1-piperidinyl) -1,4-dihydro-6-fluoro-1-methyl-8-trifluoromethyl-4-oxoquinoline-3-carboxylic acid (5) Synthesis of
[0091]
Embedded image
[0092]
6,7-Difluoro-1-methyl-4-oxo-8-trifluoromethyl-1,4-dihydroquinoline-3-carboxylic acid (2-8) (90 mg, 0.293 mmol), 3,4-dehydro- 4-phenylpiperidine (A-9) (70 mg, 0.44 mmol), triethylamine (0.08 ml) and acetonitrile (5 ml) were mixed and heated to reflux for 12 hours. The reaction mixture was concentrated, and the residue was purified by silica gel column chromatography (chloroform: methanol = 10: 1). The obtained crude crystals were recrystallized from ethanol to give 15 mg (11%) of the title compound (5). Was obtained as pale yellow crystals. The physical properties of the obtained compound (5) are as follows.
[0093]
Melting point: 227.5-229 ° C
1H-NMR (CDClThree) Δ: 2.79 (2H, bs, —CH2-), 3.78 (2H, bs, -CH2-), 4.03 (3H, s, -CHThree), 4.20 (2H, bs, -CH2-), 6.12 (1H, bs), 7.25-7.45 (5H, m, Ar), 8.16 (1H, d, J = 12 Hz, H-5), 8.60 (1H, s, H-2), 14.6 (1H, s, COOH)
IR: νmax(KBr): 1762, 1734, 1620, 1562 (cm-1)
Elemental analysis value: Ctwenty threeH18FFourN2OThreeAs
Calculated values: C, 61.88; H, 4.06; N, 6.28
Analytical value: C, 61.74; H, 4.14; N, 6.24
[0094]
Example 4
8-Difluoromethoxy-1,4-dihydro-6-fluoro-7- (4-phenyl-1-piperidinyl) -1- [4- (1,2,4-triazol-1-yl) methylphenyl] -4 -Oxoquinoline-3-carboxylic acid (6) synthesis
[0095]
Embedded image
[0096]
8-difluoromethoxy-1,4-dihydro-6,7-difluoro-1- [4- (1,2,4-triazol-1-yl) methylphenyl] -4-oxoquinoline-3-carboxylic acid (4 -8) (81.1 mg, 0.181 mmol; DE-A-4425659), 4-phenylpiperidine (B-9) (43.7 mg, 0.271 mmol), triethylamine (50 ml, 0.362 mmol), acetonitrile ( 3 ml) was mixed and heated to reflux for 24 hours. The reaction solution was ice-cooled, and the precipitated crystals were collected by filtration. The filtrate was concentrated and the residue was crystallized with ethanol and collected by filtration. The crystals collected by filtration were combined and recrystallized from ethanol to obtain 38.6 mg (35%) of the title compound (6) as colorless crystals. The physical properties of the obtained compound (6) are as follows.
[0097]
Melting point: 180-183 ° C
1H-NMR (CDClThree) Δ: 1.80 (2H, m, —CH2-), 1.93 (2H, m, -CH2-), 2.69 (1H, m, -CHPh-), 3.26 (2H, m, -CH2-), 3.44 (2H, m, -CH2-), 5.48 (2H, s, -CH2−), 6.21 (1H, t, J = 75 Hz, −OCHF2), 7.21-7.26 (2H, m, aromatic H), 7.31-7.36 (2H, m, aromatic H), 7.43 (1H, d, aromatic H), 8.03 ( 1H, s, triazole H), 8.13 (1H, d, J = 12 Hz, H-5), 8.14 (1H, s, triazole H), 8.62 (1H, s, H-2)
IR: νmax(KBr): 1730, 1622, 1600, 1504 (cm-1)
Elemental analysis value: C31H26FThreeNFiveOFour・ 3 / 4H2As O
Calculated value: C, 61.74; H, 4.58; N, 11.61
Analytical value: C, 61.78; H, 4.87; N, 11.01.
[0098]
Reference example 3
Methyl Synthesis of 3-ethenyl-2,4,5-trifluorobenzoate (C)
[0099]
Embedded image
[0100]
To a mixture of tetrakistriphenylphosphine palladium (6.18 g), lithium chloride (25.9 g) and anhydrous dioxane (500 ml), methyl 2,4,5-trifluoro-3-trifluoromethanesulfonyloxybenzoate (C ′) (57.37 g, 0.170 mmol) and a solution of tetravinyltin (33.6 ml) in anhydrous dioxane (500 ml) were added dropwise in a nitrogen atmosphere over 15 minutes, and then heated under reflux for 15 hours.
The reaction solution was concentrated under reduced pressure, and an aqueous potassium fluoride solution (1 liter) was added to the residue, followed by extraction with ether (3 × 500 ml). The extract was washed with saturated brine, dried over anhydrous sodium sulfate, and the solvent was distilled off. The residue was applied to a silica gel column and eluted with n-hexane-ethyl acetate (98: 2) to obtain a fraction containing the desired product. Distillation under reduced pressure gave 21.8 g (59%) of a colorless oily substance (C) having a boiling point of 82 ° C./2 mmHg. The physical properties of the obtained compound (C) are as follows.
[0101]
1H-NMR (CDClThree) Δ: 3.93 (3H, s, COOCHThree), 5.73 (1H, d, J = 11 Hz, CH = CHcisH), 6.12 (1H, d, J = 18 Hz, CH = CHtransH), 6.70 (1H, dd, J = 11, 18 Hz, CH = CH2), 7.65 (1H, ddd, J = 6, 9, 10 Hz, H-6)
[0102]
Reference example 4
Methyl Synthesis of 3-formyl-2,4,5-trifluorobenzoate (D)
[0103]
Embedded image
[0104]
Methyl 3-ethenyl-2,4,5-trifluorobenzoate (C) (21.8 g, 0.101 mol) was dissolved in methanol (500 ml), cooled to −78 ° C. and blown with ozone for 2 hours. Excess ozone was removed by bubbling nitrogen gas, dimethyl sulfide (14 ml) was added, and the temperature was raised to room temperature. Dimethyl sulfide (14 ml) was further added and stirred for 30 minutes, and then the reaction solution was concentrated under reduced pressure. Water (500 ml) was added to the residue, followed by ether extraction (500 ml). The extract was washed with water (300 ml) and saturated brine (2 × 300 ml), dried over anhydrous sodium sulfate, and the solvent was distilled off to obtain a pale yellow oil containing 21.4 g of compound (D). . This is a mixture of -CHO + -OTf (3: 2). The physical properties of the obtained mixture are as follows.
[0105]
1H-NMR (CDClThree) Δ: 3.98 (3H, s, —COOCH)Three), 8.04 (1H, ddd, J = 7, 9, 9 Hz, H-6), 10.35 (1H, s, -CHO)
[0106]
Reference Example 5
Synthesis of 2,3,6-trifluoro-5-methoxycarbonylbenzoic acid (E)
[0107]
Embedded image
[0108]
Methyl 3-formyl-2,4,5-trifluorobenzoate (D) (21.2 g), 2-methyl-2-butene (156 ml) was dissolved in tertiary butanol (500 ml), and NaClO was dissolved.2(15.6 g) and an aqueous solution (200 ml) of sodium dihydrogen phosphate (15.6 g) were added dropwise over 20 minutes, and the mixture was further stirred at room temperature for 1 hour. 2-Methyl-2-butene in the reaction solution was distilled off under reduced pressure, and tertiary butanol was distilled off under reduced pressure using a vacuum pump. Saturated aqueous sodium hydrogen carbonate (200 ml) was added to the residue and washed with dichloromethane (3 × 200 ml). The aqueous layer was adjusted to pH 2 with concentrated hydrochloric acid and extracted with ethyl acetate (300 ml + 200 ml). The organic layer was washed with 5% sodium thiosulfate (Na2S2O
Three, 2 × 250 ml) and water (2 × 250 ml), dried over anhydrous sodium sulfate and then evaporated to give 9.31 g of the title compound (E) as colorless crystals. The physical properties of the obtained compound (E) are as follows.
[0109]
Melting point: 94-99 ° C
1H-NMR (CDClThree) Δ: 3.96 (3H, s, —COOCH)Three), 7.94 (1H, ddd, J = 6.35, 8.79, 9.76 Hz, H-6)
[0110]
Reference Example 6
Synthesis of 3-carbamoyl-2,4,5-trifluorobenzoic acid methyl ester (F)
[0111]
Embedded image
[0112]
2,3,6-trifluoro-5-methoxycarbonylbenzoic acid (E) (2.21 g, 9.77 mmol), dimethylformamide (catalytic amount, 2 drops) were dissolved in dichloromethane (40 ml), and oxalyl chloride ( 2.56 ml, 29.3 mmol) was added dropwise over 5 minutes, followed by stirring at room temperature for 1 hour. The reaction mixture was concentrated under reduced pressure, and the residue was dissolved in ether (30 ml). To the ether solution, 28% aqueous ammonia (5 ml) was added under ice-cooling and stirred for 10 minutes (crystal precipitation). The reaction solution was concentrated under reduced pressure, and the crystals were collected by filtration. The crystals were dissolved in dichloromethane, dried over anhydrous sodium sulfate, and the solvent was distilled off. The remaining crystals were washed with isopropyl ether to obtain 1.74 g (76%) of the title compound (F) as colorless crystals. The physical properties of the obtained compound (F) are as follows.
[0113]
Melting point: 145-147 ° C
1H-NMR (CDClThree) Δ: 3.95 (3H, s, —COOCHThree), 6.00 (broad s, -CONH2), 7.88 (1H, ddd, J = 7, 9, 9 Hz, H-6)
[0114]
Reference Example 7
Synthesis of 3-cyano-2,4,5-trifluorobenzoic acid methyl ester (G)
[0115]
Embedded image
[0116]
3-carbamoyl-2,4,5-trifluorobenzoic acid methyl ester (F) (1.72 g, 7.38 mmol) and pyridine (1.49 ml, 18.4 mmol) are dissolved in 1,4-dioxane (20 ml). Under ice-cooling, trifluoroacetic anhydride (1.15 ml, 8.11 mmol) was added. After stirring at room temperature for 4 hours, pyridine (1.49 ml, 18.4 mmol) and trifluoroacetic anhydride (1.15 ml, 8.11 mmol) were added, and the mixture was further stirred for 13 hours. The reaction mixture was washed with 2N hydrochloric acid (2 × 50 ml), water (50 ml), saturated aqueous sodium hydrogen carbonate (50 ml) and water (50 ml), dried over anhydrous sodium sulfate and evaporated to give 1.04 g (66% The title compound (G) was obtained as a pale yellow solid. The physical properties of the obtained compound (G) are as follows.
[0117]
Melting point: 42-44 ° C
1H-NMR (CDClThree) Δ: 3.98 (3H, s, —COOCH)Three), 8.08 (1H, ddd, J = 6, 9, 10 Hz, H-6)
[0118]
Reference Example 8
Synthesis of 3-cyano-2,5-difluoro-4- [4- (2-methoxyphenyl) -1-piperazinyl] benzoic acid methyl ester (H)
[0119]
Embedded image
[0120]
3-cyano-2,4,5-trifluorobenzoic acid methyl ester (G) (3.11 g, 14.5 mmol), 1- (2-methoxyphenyl) piperazine (2.98 g, 15.5 mmol), triethylamine ( 3.29 ml, 21.7 mmol) was dissolved in dimethyl sulfoxide (15 ml) and stirred at room temperature for 2 hours. Water (300 ml) was added to the reaction mixture, and the mixture was extracted with ethyl acetate (200 ml + 2 × 100 ml). The organic layer was washed with water (3 × 150 ml) and dried over anhydrous sodium sulfate, and then the solvent was distilled off. The residue was washed with isopropyl ether to obtain 5.18 g (92%) of the title compound (H) as pale yellow crystals. The physical properties of the obtained compound (H) are as follows.
[0121]
Melting point: 130-134 ° C
1H-NMR (CDClThree) Δ: 3.22-3.24 (4H, m, —CH2− × 2), 3.73-3.75 (4H, m, —CH2− × 2), 3.89 (3H, s, —OCHThree), 3.93 (3H, s, -COOCHThree), 6.94-6.98 (3H, m, aromatic H), 7.02-7.06 (1H, m, aromatic H), 7.76 (1H, dd, J = 6.8, 13 Hz, H-6)
IR: νmax(KBr): 1730, 1710 (cm-1)
Elemental analysis value: C20H19F2NThreeOThreeAs
Calculated values: C, 62.01; H, 4.94; N, 10.89
Analytical value: C, 61.77; H, 5.00; N, 10.65
[0122]
Reference Example 9
Synthesis of 3-aminomethyl-2,5-difluoro-4- [4- (2-methoxyphenyl) -1-piperazinyl] benzoic acid methyl ester (I)
[0123]
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[0124]
3-cyano-2,5-difluoro-4- [4- (2-methoxyphenyl) -1-piperazinyl] benzoic acid methyl ester (H) (5.18 g, 13.4 mmol), Raney nickel (20 ml), ethanol ( 200 ml) and stirred for 23 hours under 1 atmosphere of hydrogen. The catalyst was removed by filtration and the filtrate was concentrated under reduced pressure. The residue was washed with isopropyl ether to obtain 4.08 g (78%) of colorless crystals. The mother liquor was evaporated to dryness to give 683 mg (13%) of the title compound (I) as colorless crystals. The physical properties of the obtained compound (I) are as follows.
[0125]
Melting point: 115-116 ° C
1H-NMR (CDClThree) Δ: 3.20 (4H, broadcast s, —CH2− × 2), 3.38 (4H, m, —CH2− × 2), 3.89 (3H, s, —OCHThree), 3.92 (3H, s, -COOCHThree), 4.00 (2H, d, J = 2 Hz, -CH2NH2), 6.88-7.03 (4H, m, aromatic H), 7.53 (1H, dd, J = 6.8, 12 Hz, H-6)
[0126]
Reference Example 10
Synthesis of 3-tertiary butoxycarbonylaminomethyl-2,5-difluoro-4- [4- (2-methoxyphenyl) -1-piperazinyl] benzoic acid methyl ester (J)
[0127]
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[0128]
3-Aminomethyl-2,5-difluoro-4- [4- (2-methoxyphenyl) -1-piperazinyl] benzoic acid methyl ester (I) (4.71 g, 12.0 mmol) dissolved in tetrahydrofuran (150 ml) And Boc2A tetrahydrofuran solution (30 ml) of O (2.63 g, 12.0 mmol) was added dropwise, followed by stirring at room temperature for 15 hours. The reaction solution was concentrated under reduced pressure, and the residue was subjected to silica gel column chromatography and eluted with chloroform to obtain 6.01 g (quantitative) of the title compound (J) as a colorless amorphous substance. The physical properties of the obtained compound (J) are as follows.
[0129]
1H-NMR (CDClThree) Δ: 1.43 (9H, s, —COOC (CHThree)Three) 3.23 (4H, broadcast s, -CH2− × 2), 3.34 (4H, broadcasts, —CH2− × 2), 3.89 (3H, s, —OCHThree), 3.92 (3H, s, -COOCHThree), 4.55 (2H, broadcast, -CH2NHBoc), 5.06 (1H, broadcast, -NHBoc), 6.88-7.05 (4H, m, aromatic H), 7.57 (1H, dd, J = 6.8, 12 Hz, H-6) )
[0130]
Reference Example 11
Synthesis of 3-tertiary butoxycarbonylaminomethyl-2,5-difluoro-4- [4- (2-methoxyphenyl) -1-piperazinyl] benzoic acid (K)
[0131]
Embedded image
[0132]
3-Tertiary butoxycarbonylaminomethyl-2,5-difluoro-4- [4- (2-methoxyphenyl) -1-piperazinyl] benzoic acid methyl ester (J) (6.01 g, 12.2 mmol) in methanol (200 ml), 1N aqueous sodium hydroxide solution (18.3 ml) was added, and the mixture was stirred at room temperature for 17 hours. The reaction mixture was concentrated under reduced pressure, and the residue was dissolved in water (100 ml). Acidified with 10% aqueous citric acid solution and extracted with ethyl acetate (200 ml). The organic layer was washed with water (2 × 200 ml) and dried over anhydrous sodium sulfate, and then the solvent was distilled off to obtain 5.57 g (97%) of the title compound (K) as a colorless amorphous. The physical properties of the obtained compound (K) are as follows.
[0133]
1H-NMR (CDClThree) Δ: 1.44 (9H, s, —COOC (CHThree)Three), 3.22 (4H, broadcasts, -CH2− × 2), 3.38 (4H, broadcasts, —CH2− × 2), 3.89 (3H, s, —OCHThree), 4.55 (2H, broadcasts, -CH2NHBoc), 5.10 (1H, broadcasts, —NHBoc), 6.88-7.05 (4H, m, aromatic H), 7.64 (1H, dd, J = 6.8, 12 Hz, H-6) )
[0134]
Reference Example 12
ethyl Synthesis of 3-tertiary butoxycarbonylaminomethyl-2,5-difluoro-4- [4- (2-methoxyphenyl) -1-piperazinyl] benzoyl acetate (L)
[0135]
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[0136]
Magnesium (0.340 g, 14.0 mmol) and ethanol (50 ml) were mixed, carbon tetrachloride (0.5 ml) was added, and the mixture was stirred at room temperature for 1 hour. To this was added dropwise a solution (20 ml) of ethyl hydrogen malonate (1.85 g, 14.0 mmol) in tetrahydrofuran, and the mixture was stirred at room temperature for 2 hours. The reaction solution was evaporated to dryness and the residue was dissolved in tetrahydrofuran (150 ml).
3-tert-butoxycarbonylaminomethyl-2,5-difluoro-4- [4- (2-methoxyphenyl) -1-piperazinyl] benzoic acid (K) (5.57 g, 11.7 mmol) in tetrahydrofuran (80 ml) ), N, N′-carbonyldiimidazole (2.08 g, 12.8 mmol) was added, and the mixture was stirred at room temperature for 6 hours. To this was added dropwise a tetrahydrofuran solution of ethyl hydrogen malonate magnesium salt, and the mixture was stirred at room temperature for 16 hours. The reaction mixture was evaporated to dryness, and chloroform (200 ml) and 10% aqueous citric acid solution (200 ml) were added to the residue and stirred. The organic layer was separated, and the aqueous layer was extracted with chloroform (100 ml). The combined organic layers were washed with water (200 ml), dried over anhydrous sodium sulfate and the solvent was distilled off. The residue was subjected to silica gel column chromatography and eluted with n-hexane-ethyl acetate (3: 1) to obtain 3.58 g (56%) of the title compound (L) as a pale yellow amorphous. The physical properties of the obtained compound (L) are as follows.
[0137]
[0138]
Reference Example 13
ethyl Synthesis of 2- [3-tertiary butoxycarbonylaminomethyl-2,5-difluoro-4- [4- (2-methoxyphenyl) -1-piperazinyl] benzoyl] -3-methylaminoacrylate (M)
[0139]
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[0140]
Ethyl 3-tertiary butoxycarbonylaminomethyl-2,5-difluoro-4- [4- (2-methoxyphenyl) -1-piperazinyl] benzoyl acetate (L) (703 mg, 1.28 mmol) is converted to benzene ( 30 ml), dimethylformamide dimethyl acetal (0.852 ml, 6.42 mmol) was added and heated to reflux for 1 hour. Dimethylformamide dimethylacetal (0.852 ml, 6.42 mmol) was added, and the mixture was further refluxed with heating for 2.5 hours, and then the solvent was distilled off. The residue was dissolved in toluene, methylamine hydrochloride (402 mg, 4.93 mmol) and triethylamine (1.03 ml, 7.39 ml) were added, and the mixture was stirred at room temperature for 17 hours. The reaction solution was washed with water (50 ml), dried over anhydrous sodium sulfate and the solvent was distilled off. The residue was applied to a flash column and eluted with n-hexane-ethyl acetate (1: 1) to give 643 mg (86%) of the title compound (M) as a colorless amorphous. The physical properties of the obtained compound (M) are as follows.
[0141]
[0142]
Example 5
ethyl 8-tert-butoxycarbonylaminomethyl-1,4-dihydro-6-fluoro-7- [4- (2-methoxyphenyl) -1-piperazinyl] -1-methyl-4-oxoquinoline-3-carboxylate Synthesis of (5-1)
[0143]
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[0144]
A)
Ethyl 2- [3-tert-butoxycarbonylaminomethyl-2,5-difluoro-4- [4- (2-methoxyphenyl) -1-piperazinyl] benzoyl] -3-methylaminoacrylate (M) (643 mg, 1.09 mmol) was dissolved in dimethylformamide (10 ml), 60% sodium hydride (88 mg, 2.20 mmol) was added and stirred for 20 minutes. The reaction solution was poured into ice water (100 ml), and the precipitated crystals were collected by filtration. The precipitate was dissolved in chloroform and dried over anhydrous sodium sulfate, and then the solvent was distilled off. The residue was subjected to silica gel column chromatography and eluted with chloroform to obtain 248 mg of yellow amorphous (structure unknown). Elution with chloroform-methanol (95: 5) gave 187 mg (30%) of the title compound (5-1) as colorless crystals. The physical properties of the obtained compound (5-1) are as follows.
[0145]
Melting point: 178-181 ° C
1H-NMR (CDClThree) Δ: 1.43 (3H, t, J = 7.3 Hz, −CH2CHThree), 1.56 (9H, s, -COOC (CHThree)Three), 2.9-3.8 (8H, broadcast, -CH2-X4), 3.90 (3H, s, -OCHThree), 4.06 (3H, s, N1-CHThree), 4.40 (2H, q, J = 7.3 Hz, -CH2CHThree), 4.78 (2H, d, J = 4.4 Hz, -CH2NHBoc), 4.90 (1H, broadcast, -NHBoc), 6.90-7.04 (4H, m, aromatic H), 8.20 (1H, d, J = 12 Hz, H-5), 8. 42 (1H, s, H-2) (AX02563A)
IR: νmax(KBr): 3280, 3072, 1728, 1698, 1620 (cm-1)
Elemental analysis value: C30H37FNFourO6As
Calculated value: C, 63.37; H, 6.56; N, 9.85
Analytical value: C, 62.95; H, 6.59; N, 9.43
[0146]
B)
Ethyl 2- [3-tert-butoxycarbonylaminomethyl-2,5-difluoro-4- [4- (2-methoxyphenyl) -1-piperazinyl] benzoyl] -3-methylamino acrylate (M) (1. 04 g, 1.77 mmol) was dissolved in dimethylformamide (30 ml), potassium carbonate (488 mg, 3.53 mmol) was added, and the mixture was stirred at room temperature for 20 hours. The reaction mixture was evaporated to dryness, 10% aqueous citric acid solution (70 ml) was added to the residue, and the mixture was extracted with ethyl acetate (200 ml). The organic layer was washed with water (2 × 50 ml) and saturated brine (50 ml), dried over anhydrous sodium sulfate, and the solvent was distilled off. The residue was washed with isopropyl ether to obtain 936 mg (93%) of the title compound (5-1) as colorless crystals.
[0147]
Example 6
8-tert-butoxycarbonylaminomethyl-1,4-dihydro-6-fluoro-7- [4- (2-methoxyphenyl) -1-piperazinyl] -1-methyl-4-oxoquinoline-3-carboxylic acid Synthesis of (6-1)
[0148]
Embedded image
[0149]
Ethyl 8-tertiary butoxycarbonylaminomethyl-1,4-dihydro-6-fluoro-7- [4- (2-methoxyphenyl) -1-piperazinyl] -1-methyl-4-oxoquinoline-3-carboxy Lat (5-1) (142 mg, 0.250 mg) was dissolved in ethanol (30 ml), 1N aqueous sodium hydroxide solution (0.50 ml) was added and the mixture was refluxed with heating for 18 hours, and then the reaction mixture was concentrated under reduced pressure. To the residue was added 10% aqueous citric acid solution, and the mixture was extracted with ethyl acetate (100 ml), and the organic layer was washed with saturated brine (2 × 50 ml). The extract was dried over anhydrous sodium sulfate, and then the solvent was distilled off to obtain 142 mg of pale yellow crystals. Washing with isopropyl ether gave 124 mg (92%) of the title compound (6-1) as colorless crystals. The physical properties of the obtained compound (6-1) are as follows.
[0150]
Melting point: 163-166 ° C
1H-NMR (CDClThree) Δ: 1.45 (9H, s, —COOC (CHThree)Three)
, 3.0-3.5 (8H, broadcast, -CH2− × 4), 3.91 (3H, s, —OCHThree), 4.18 (3H, s, N1-CHThree), 4.85 (3H, broadcasts, -CH2NHBoc, -NHBoc), 6.90-7.26 (4H, m, aromatic H), 8.15 (1H, d, J = 12Hz, H-5), 8.64 (1H, s, H-2) )
IR: νmax(KBr): 1710, 1620 (cm-1)
Elemental analysis value: C28H33FNFourO6As
Calculated values: C, 62.21; H, 6.15; N, 10.36
Analytical value: C, 61.92; H, 6.09; N, 10.05
[0151]
Example 7
8-aminomethyl-1,4-dihydro-6-fluoro-7- [4- (2-methoxyphenyl) -1-piperazinyl] -1-methyl-4-oxoquinoline-3-carboxylic acid dihydrochloride (7 -1) Synthesis
[0152]
Embedded image
[0153]
8-tert-butoxycarbonylaminomethyl-1,4-dihydro-6-fluoro-7- [4- (2-methoxyphenyl) -1-piperazinyl] -1-methyl-4-oxoquinoline-3-carboxylic acid Concentrated hydrochloric acid (5 ml) was added to (6-1) (118 mg, 0.218 mmol), and the mixture was stirred at room temperature for 15 minutes, and then water (20 ml) was added and dried under reduced pressure. The residue was recrystallized from hydrous ethanol to obtain 90.2 mg (80%) of the title compound (7-1) as colorless crystals. The physical properties of the obtained compound (7-1) are as follows.
[0154]
Melting point: 248-250 ° C
1H-NMR (D2O) δ: 3.4-4.0 (8H, broadcast, 4 × -CH2-), 3.97 (3H, s, -OCHThree), 4.25 (3H, s, N1-CHThree), 7.10-7.30 (2H, m, aromatic H), 7.30-7.70 (2H, m, aromatic H), 8.21 (1H, d, J = 12 Hz, H-5) , 8.97 (1H, s, H-2)
IR: νmax(KBr): 1726, 1618, 1606, 1502, 1468, 1432 (cm-1)
Elemental analysis value: Ctwenty threeHtwenty fiveFNFourOFour・ As 2HCl
Calculated value: C, 53.81; H, 5.30; N, 10.91
Analytical value: C, 53.82; H, 5.21; N, 10.72
[0155]
Example 8
ethyl 8-Aminomethyl-1,4-dihydro-6-fluoro-7- [4- (2-methoxyphenyl) -1-piperazinyl] -1-methyl-4-oxoquinoline-3-carboxylate (8-1) Synthesis of
[0156]
Embedded image
[0157]
Ethyl 8-tertiary butoxycarbonylaminomethyl-1,4-dihydro-6-fluoro-7- [4- (2-methoxyphenyl) -1-piperazinyl] -1-methyl-4-oxoquinoline-3-carboxy To lat (5-1) (75.5 mg, 0.132 mmol) was added trifluoroacetic acid (5 ml), and the mixture was stirred at room temperature for 15 minutes, and then dried under reduced pressure. Saturated aqueous sodium hydrogen carbonate (50 ml) was added to the residue, followed by extraction with chloroform (3 × 50 ml). The extract was washed with saturated brine, dried over anhydrous sodium sulfate and evaporated to give 70.1 mg of the title compound (8-1) as a colorless amorphous product. The physical properties of the obtained compound (8-1) are as follows.
[0158]
1H-NMR (CDClThree) Δ: 1.42 (3H, t, J = 7.3 Hz, −CH2CHThree), 2.8-3.8 (8H, broadcast, -CH2− × 4), 3.91 (3H, s, —OCHThree), 4.26 (2H, s, -CH2NH2), 4.29 (3H, s, N1-CHThree), 4.40 (2H, q, J = 7.3 Hz, -CH2CHThree), 6.90-7.06 (4H, m, aromatic H), 8.15 (1H, d, J = 12 Hz, H-5), 8.44 (1H, s, H-2)
[0159]
Example 9
ethyl 8-dimethylaminomethyl-1,4-dihydro-6-fluoro-7- [4- (2-methoxyphenyl) -1-piperazinyl] -1-methyl-4-oxoquinoline-3-carboxylate (9- 1) Synthesis
[0160]
Embedded image
[0161]
Ethyl 8-aminomethyl-1,4-dihydro-6-fluoro-7- [4- (2-methoxyphenyl) -1-piperazinyl] -1-methyl-4-oxoquinoline-3-carboxylate (8-1 ) (70.1 mg), paraformaldehyde (30 mg), 5% palladium carbon (100 mg) and ethanol (30 ml) were mixed, and the mixture was stirred for 2 days under 1 atmosphere of hydrogen. The catalyst was removed by filtration, and the filtrate was concentrated under reduced pressure. The residue was purified by preparative TLC (developing solvent; chloroform-methanol 95: 5) to obtain 30.0 mg of the title compound (9-1) as colorless crystals. The physical properties of the obtained compound (9-1) are as follows.
[0162]
Melting point: 187-190 ° C
1H-NMR (CDClThree) Δ: 1.41 (3H, t, J = 7.3 Hz, −CH2CHThree), 2.01 (6H, s, -N (CHThree)2), 3.0-3.5 (8H, broadcast, -CH2-X4), 3.90 (3H, s, -OCHThree), 4.12 (5H, s, -CH2NH2, N1-CHThree), 4.40 (2H, q, J = 7.3 Hz, -CH2CHThree), 6.90-7.03 (4H, m, aromatic H), 8.17 (1H, d, J = 12 Hz, H-5), 8.39 (1H, s, H-2).
[0163]
Example 10
8-dimethylaminomethyl-1,4-dihydro-6-fluoro-7- [4- (2-methoxyphenyl) -1-piperazinyl] -1-methyl-4-oxoquinoline-3-carboxylic acid (7) Composition
[0164]
Embedded image
[0165]
Ethyl 8-dimethylaminomethyl-1,4-dihydro-6-fluoro-7- [4- (2-methoxyphenyl) -1-piperazinyl] -1-methyl-4-oxoquinoline-3-carboxylate (9- 1) (65.4 mg, 0.132 mmol) was dissolved in ethanol (20 ml), 1N aqueous sodium hydroxide solution (0.263 ml) was added, and the mixture was heated to reflux for 16 hours. The reaction mixture was evaporated to dryness, the residue was dissolved in water (10 ml), 1N hydrochloric acid (0.263 ml) was added, and the mixture was extracted with chloroform (2 × 50 ml). The extract was dried over anhydrous sodium sulfate and the solvent was distilled off. The residue was recrystallized from isopropanol to obtain 40.8 mg (66%) of the title compound (7) as colorless crystals. The physical properties of the obtained compound (7) are as follows.
[0166]
Melting point: 274-279 ° C
1H-NMR (CDClThree) Δ: 1.99 (6H, s, —N (CHThree)2), 3.1-3.6 (8H, broadcast, -CH2− × 4), 3.91 (3H, s, —OCHThree), 4.04 (3H, s, N1-CHThree), 6.91-7.07 (4H, m, aromatic H), 8.13 (1H, d, J = 12 Hz, H-5), 8.61 (1H, s, H-2) 14.87. (1H, s, -COOH)
IR: νmax(KBr): 1732, 1616, 1436 (cm-1)
Elemental analysis value: Ctwenty fiveH29FNFourOFourAs
Calculated values: C, 63.42; H, 5.99; N, 12.33
Analytical value: C, 63.39; H, 6.01; N, 12.18
[0167]
Example 11
ethyl 1,4-dihydro-6-fluoro-7- [4- (2-methoxyphenyl) -1-piperazinyl] -8- (4-nitrophenylsulfonylaminomethyl) -1-methyl-4-oxoquinoline-3- Synthesis of carboxylate (11-1)
[0168]
Embedded image
[0169]
Ethyl 8-aminomethyl-1,4-dihydro-6-fluoro-7- [4- (2-methoxyphenyl) -1-piperazinyl] -1-methyl-4-oxoquinoline-3-carboxylate (8-1 ) (320 mg, 0.687 mmol) was dissolved in dichloromethane (50 ml), 2,6-lutidine (0.190 ml, 1.65 mmol) and p-nitrobenzenesulfonyl chloride (182 mg, 0.825 mmol) were added, Stir for hours. The reaction solution was washed with water (2 × 100 ml), dried over anhydrous sodium sulfate and the solvent was distilled off. The residue was subjected to silica gel column chromatography and eluted with chloroform-methanol (95: 5) to obtain 408 mg (91%) of the title compound (11-1) as yellow crystals. The physical properties of the obtained compound (11-1) are as follows.
[0170]
Melting point: 137-142 ° C
1H-NMR (CDClThree) Δ: 1.44 (3H, t, J = 7.3 Hz, −CH2CHThree), 2.5-3.8 (8H, broadcast, -CH2− × 4), 3.88 (3H, s, —OCH)Three), 4.16 (3H, s, -N)1-CHThree), 4.35 (2H, q, J = 7.3 Hz, -CH2CHThree), 4.66 (2H, d, J = 5.6 Hz, -CH2NH-), 6.31 (1H, broadcast, -NHSO2−), 6.69 (1H, d, J = 7 Hz, aromatic H), 6.90 (1H, d, J = 7 Hz, aromatic H), 7.00 (1H, t, J = 7 Hz, aromatic H) 7.09 (1H, t, J = 7 Hz, aromatic H), 7.85 (1H, d, J = 12 Hz, H-5), 8.21 (2H, d, J = 9 Hz, aromatic H), 8.35 (1H, s, H-2), 8.36 (2H, d, J = 9 Hz, aromatic H)
[0171]
Example 12
ethyl 1,4-dihydro-6-fluoro-7- [4- (2-methoxyphenyl) -1-piperazinyl] -8- (N-methyl-N-4-nitrophenylsulfonylaminomethyl) -1-methyl-4 -Oxoquinoline-3-carboxylate (12-1) synthesis
[0172]
Embedded image
[0173]
Ethyl 1,4-dihydro-6-fluoro-7- [4- (2-methoxyphenyl) -1-piperazinyl] -8- (4-nitrophenylsulfonylaminomethyl) -1-methyl-4-oxoquinoline-3 -Carboxylate (11-1) (402 mg, 0.615 mmol), dimethylformamide (10 ml), potassium carbonate (266 mg, 1.93 mmol), methyl iodide (80 μl, 1.29 mmol) were mixed and mixed at room temperature for 3 hours. Stir. The reaction solution was dried under reduced pressure, and 30 ml of water was added to the residue, followed by extraction with chloroform (60 ml). The extract was dried over anhydrous sodium sulfate, the solvent was distilled off, and the residue was washed with isopropyl ether to obtain 384 mg (94%) of the title compound (12-1) as yellow crystals. The physical properties of the obtained compound (12-1) are as follows.
[0174]
Melting point: 282-284 ° C
1H-NMR (CDClThree) Δ: 1.43 (3H, t, J = 7.3 Hz, −CH2CHThree), 2.10 (3H, s, -NCHThreeSO2-), 2.7-2.9 (4H, broadcast, -CH2-X2), 3.2-3.4 (4H, broadcast, -CH2-X2), 3.86 (3H, s, -OCHThree), 4.24 (3H, s, -N)1CHThree), 4.42 (2H, q, J = 7.3 Hz, -CH2CHThree), 4.91 (2H, s, -CH2N−), 6.59 (1H, d, J = 8 Hz, aromatic H), 6.89 (1H, d, J = 8 Hz, aromatic H), 6.99 (1H, t, J = 8 Hz, aromatic H) ), 7.08 (1H, t, J = 8 Hz, aromatic H), 8.07 (2H, d, J = 9 Hz, aromatic H), 8.24 (1H, d, J = 12 Hz, H-5) , 8.45 (2H, d, J = 9 Hz, aromatic H), 8.46 (1H, s, H-2),
IR: νmax(KBr): 1720, 1610, 1532, 1498, 1440 (cm-1)
Elemental analysis value: C32H34FNFiveO8As S
Calculated value: C, 53.81; H, 5.30; N, 10.91
Analytical value: C, 53.82; H, 5.21; N, 10.72
[0175]
Example 13
ethyl 1,4-dihydro-6-fluoro-7- [4- (2-methoxyphenyl) -1-piperazinyl] -1-methyl-8-methylaminomethyl-4-oxoquinoline-3-carboxylate (13-1 ) Synthesis
[0176]
Embedded image
[0177]
Ethyl 1,4-dihydro-6-fluoro-7- [4- (2-methoxyphenyl) -1-piperazinyl] -8- (N-methyl-N-4-nitrophenylsulfonylaminomethyl) -1-methyl- 4-Oxoquinoline-3-carboxylate (12-1) (377 mg, 0.589 mmol) was dissolved in dimethylformamide (5 ml), potassium carbonate (244 mg, 1.77 mmol), thiophenol (73 μl, 0.707 mmol). And stirred at room temperature for 22 hours. The reaction mixture was evaporated to dryness, water (30 ml) was added to the residue, and the mixture was extracted with ethyl acetate (100 ml). The extract was washed with water (3 × 30 ml) and dried over anhydrous sodium sulfate, and then the solvent was distilled off to obtain 211 mg (79%) of the title compound (13-1) as a pale yellow oil. The physical properties of the obtained compound (13-1) are as follows.
[0178]
1H-NMR (CDClThree) Δ: 1.41 (3H, t, J = 7.3 Hz, −CH2CHThree), 2.51 (3H, s, -NCHThree), 2.8-3.2 (4H, broadcast, -CH2-X2), 3.25-3.8 (4H, broadcast, -CH2-X2), 3.90 (3H, s, -OCHThree), 4.29 (3H, s, N1-CHThree), 4.42 (2H, q, J = 7.3 Hz, -CH2CHThree), 6.90-7.07 (4H, m, aromatic H), 8.16 (1H, d, J = 12 Hz, H-5), 8.43 (1H, s, H-2).
[0179]
Example 14
1,4-dihydro-6-fluoro-7- [4- (2-methoxyphenyl) -1-piperazinyl] -1-methyl-8-methylaminomethyl-4-oxoquinoline-3-carboxylic acid (14-1 )
[0180]
Embedded image
[0181]
Ethyl 1,4-dihydro-6-fluoro-7- [4- (2-methoxyphenyl) -1-piperazinyl] -1-methyl-8-methylaminomethyl-4-oxoquinoline-3-carboxylate (13- 1) (211 mg, 0.464 mmol), ethanol (20 ml), 1N sodium hydroxide (0.982 ml, 0.982 mmol) were mixed and heated to reflux for 18 hours. The reaction mixture was evaporated to dryness, the residue was dissolved in water (10 ml), adjusted to pH 7.4 with hydrochloric acid, and extracted with chloroform. The extract was dried over anhydrous sodium sulfate and the solvent was distilled off. The residue was recrystallized from ethanol to obtain 94.9 mg (44%) of the title compound (14-1) as colorless crystals. The physical properties of the obtained compound (14-1) are as follows.
[0182]
Melting point: 217-218 ° C
1H-NMR (CDClThree) Δ: 2.51 (3H, broadcast, —NH (CHThree)), 2.8-3.8 (8H, broadcast, -CH2− × 4), 3.91 (3H, s, —OCHThree), 4.42 (3H, s, N1-CHThree), 6.91-7.08 (4H, m, aromatic H), 8.14 (1H, d, J = 12 Hz, H-5), 8.66 (1H, s, H-2).
IR: νmax(KBr): 1728, 1616, 1500, 1464 (cm-1)
Elemental analysis value: Ctwenty fourH27FNFourOFour・ H2As O
Calculated values: C, 62.19; H, 6.09; N, 12.09
Analytical value: C, 62.16; H, 5.88; N, 11.89
[0183]
Test example 1
Using the compounds (4) to (7) prepared in Examples 1, 3, 4 and 10, ICAM-1 production inhibition test was conducted. The following formula as a control
[0184]
Embedded image
[0185]
The benzothiophene derivative represented by this was used.
[0186]
Human umblical vein endotherial cells (HUBIC) 8 x 10 in each well of 96-well microplateThreeSeed one by one, 5% CO2Pre-cultured in the presence at 37 ° C. for 48 hours. 48 hours later, human-TNF-α was added to each well so that the final concentration was 1000 U / ml, and each test specimen was adjusted so that the final concentration was 0.05, 0.5, 5 μg / ml. Add 50 μl at a time, 5% CO2The cells were further cultured at 37 ° C. for 4 hours in the presence. After the cells were washed 5 times with Hank's Balanced Salt Solution (HBSS) containing 0.1% BSA, 10 μl of mouse anti-human ICAM-1 antibody prepared to 1 μg / ml was added to each well and allowed to react at room temperature for 45 minutes. After completion of the reaction, the cells were washed 5 times with 0.1% BSA-containing HBSS, and a 3000-fold diluted solution of peroxidase-labeled mouse Ig was added to each well in an amount of 100 μl, followed by further reaction at room temperature for 90 minutes. After the cells were washed 5 times with HBSS containing 0.1% BSA, 100 μl of ABTS Peroxidase Substrate System (ABTS) was added to each well as a reaction substrate, and reacted at room temperature for 20 minutes. The reaction was stopped by adding 50 μl of 1% SDS solution to each well. After stopping the reaction, the color development ratio of the solution in each well was measured using an absorptiometer at an absorption wavelength of 405 nm. The results are shown in FIG.
[0187]
The control compound, benzothiophene derivative, inhibited ICAM-1 production at 0.05 μg / ml. This inhibitory effect is described in the literature (Boshelli, DH, Karmer, JB, Connor, DT, Lesch, ME, Schrier, DJ, Ferin, MA, Wright, CD: J. Med. Chem. 37, 7176-718 (1994). ). On the other hand, all of the test compounds (4) to (7) showed ICAM-1 production inhibitory effect at 5 μg / ml, of which compound (6) showed the strongest inhibitory activity, and almost completely ICAM at 0.05 μg / ml. -1 production was inhibited.
[0188]
Test example 2
Using the compounds (4) to (7), a p24 protein production inhibition test from OM-10.1 cells by TNF-α stimulation was performed. 1 × 10 OM-10. 1 cells incorporating the entire HIV geneFiveAfter preincubation for 2 hours in the presence of the test drug, TNF-α was added to a concentration of 10 U / ml to stimulate the cells. 5% CO2After culturing at 37 ° C. for 3 days in the presence, the amount of p24 antigen in the culture supernatant was measured with an ELISA kit, and its 50% inhibitory concentration was determined as EC.50It showed in. The results are shown in Table 1.
[0189]
[Table 1]
[0190]
Compounds (4) to (7) all inhibited p24 protein produced from OM-10.1 cells by TNF-α stimulation at a low concentration of 0.17 μM or less. Especially, compound (6) is EC.50The value was 0.017 μM, indicating the strongest inhibitory activity.
[0191]
Test example 3
Anti-HIV activity test was conducted using the compounds (4) to (7). 1 × 10 of MT-4 cellsFiveCells / ml suspension is infected with HIV-1 · III B at a MOI ratio of 0.02, and the infected cell solution is equivalent to a 96-well microplate containing a 2-fold serial dilution of each drug. The aliquots were dispensed and cultured at 37 ° C. for 4 days. After completion of the culture, the MTT method (Pauwels, R. et. Al., J. Virol. Methods,20, 309-321 (1988)), the anti-HIV effect of each drug was measured, and its 50% inhibitory concentration was determined as EC.50It showed in. The results are shown in Table 2.
[0192]
[Table 2]
[0193]
Compounds (4) to (7) are ECs even in acute infection systems using MT4 cells.50A strong HIV growth inhibitory effect with a value of 0.54 μM or less was shown. Among these, compound (6) is its EC.50The anti-HIV effect was exhibited at a low concentration of 0.025 μM. In addition, as described above, the ICAM-1 production inhibitory activity of compounds (4) to (7), the p24 protein production inhibitory activity from OM-10.1 cells stimulated by TNF-α, and the strength of anti-HIV activity are almost the same. It was correlated.
[0194]
【The invention's effect】
According to the present invention, various diseases caused by TNF-α-inducing effects, such as rheumatoid arthritis, septic shock, ulcerative colitis, etc., or suppression of the onset of AIDS by promoting HIV gene replication / transcription Thus, a TNF-α-inducing effect inhibitor that exhibits efficacy, etc. can be obtained.
[Brief description of the drawings]
FIG. 1 is a graph showing inhibition of ICAM-1 production by a TNF-α-inducing effect inhibitor.
Claims (5)
R5はフェニル基またはC1-6アルコキシフェニル基を示し;
R7はハロゲン原子を置換基として有していてもよいC1-6アルキル基、ハロゲン原子を置換基として有していてもよいC1-6アルコキシル基、または1もしくは2のC1-6アルキル基を置換基として有していてもよいアミノメチル基を示し;
Xは水素原子またはハロゲン原子を示し;
Zは炭素原子または窒素原子で表わされる部分構造を示す。ただし、Zが窒素原子で表わされる部分構造のとき、R7は1もしくは2のC1-6アルキル基を置換基として有していてもよいアミノメチル基である。]
で表わされる化合物またはその塩を有効成分とするTNF−αの誘導に由来するICAM−1の産生阻害剤。General formula (1)
R 5 represents a phenyl group or a C 1-6 alkoxyphenyl group;
R 7 is a C 1-6 alkyl group optionally having a halogen atom as a substituent, a C 1-6 alkoxyl group optionally having a halogen atom as a substituent, or 1 or 2 of C 1-6 An aminomethyl group optionally having an alkyl group as a substituent;
X represents a hydrogen atom or a halogen atom;
Z represents a partial structure represented by a carbon atom or a nitrogen atom. However, when Z is a partial structure represented by a nitrogen atom, R 7 is an aminomethyl group optionally having 1 or 2 C 1-6 alkyl group as a substituent. ]
An inhibitor of ICAM-1 production derived from induction of TNF-α, comprising a compound represented by the formula:
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CA2470365C (en) | 2002-11-20 | 2011-05-17 | Japan Tobacco Inc. | 4-oxoquinoline compound and use thereof as hiv integrase inhibitor |
US7531554B2 (en) | 2004-05-20 | 2009-05-12 | Japan Tobacco Inc. | 4-oxoquinoline compound and use thereof as HIV integrase inhibitor |
MY134672A (en) | 2004-05-20 | 2007-12-31 | Japan Tobacco Inc | Stable crystal of 4-oxoquinoline compound |
JP4629104B2 (en) * | 2004-05-21 | 2011-02-09 | 日本たばこ産業株式会社 | Concomitant drug containing 4-oxoquinoline derivative and anti-HIV agent |
ES2531190T3 (en) | 2006-03-06 | 2015-03-11 | Japan Tobacco Inc | Method to produce a 4-oxoquinoline compound |
CN107090023B (en) * | 2017-03-23 | 2020-06-05 | 桂林八加一药业股份有限公司 | Selective TNFR1 antagonistic peptide SN10 and application thereof in rheumatoid arthritis |
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