JP2004123538A - Diphenylthiazolidinedione derivative and medicinal application thereof - Google Patents

Diphenylthiazolidinedione derivative and medicinal application thereof Download PDF

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Publication number
JP2004123538A
JP2004123538A JP2000318511A JP2000318511A JP2004123538A JP 2004123538 A JP2004123538 A JP 2004123538A JP 2000318511 A JP2000318511 A JP 2000318511A JP 2000318511 A JP2000318511 A JP 2000318511A JP 2004123538 A JP2004123538 A JP 2004123538A
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Prior art keywords
chymase
compound
diseases
disease
diphenylthiazolidinedione
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JP2000318511A
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Japanese (ja)
Inventor
Yusuke Sakai
境 祐輔
Atsushi Inoue
井上 淳
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Senju Pharmaceutical Co Ltd
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Senju Pharmaceutical Co Ltd
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Priority to JP2000318511A priority Critical patent/JP2004123538A/en
Priority to PCT/JP2001/004469 priority patent/WO2001094326A1/en
Priority to AU2001258854A priority patent/AU2001258854A1/en
Publication of JP2004123538A publication Critical patent/JP2004123538A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To obtain a new compound having an inhibitory activity for a chymase and therapeutic effects on circulatory diseases, allergic diseases, inflammatory diseases, glaucoma, chorioretinopathic diseases or ciliary muscle regulatory diseases. <P>SOLUTION: This compound is represented by formula (I) (wherein, A denotes carbonyl group or sulfonyl group; and R denotes an aromatic hydrocarbon group). <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は、新規ジフェニルチアゾリジンジオン誘導体、およびこれらを含有する医薬に関する。これらの新規化合物は顕著なキマーゼ阻害作用を有し、キマーゼが関与する種々の疾患の予防と治療に有用である。
【0002】
【従来の技術】
キマーゼは中性のセリンプロテアーゼ(約30kD)の一つであるが、組織内においてアンジオテンシンIをアンジオテンシンIIに変換する酵素であること〔J. Biol. Chem., 265巻, 22348頁(1990年)〕から、アンジオテンシンIIに起因する心臓、循環器系疾患の発症に関わっているとされる。また、キマーゼはコラゲナーゼから活性型コラゲナーゼへの活性化や細胞外マトリックス、トロンビン、IgGの限定分解、肥満細胞からヒスタミンの遊離を促進する等の作用も明らかになっていることから〔J. Biol. Chem. 103巻, 820頁(1988年)〕、キマーゼはアレルギーまたは炎症性疾患などにも関与していると考えられる。さらに、眼組織中のキマーゼについては、その働きはまだ完全には解明されていないが、眼炎症や眼アレルギー、眼循環(眼血流、房水循環)および毛様体筋の調節に関与していると考えられる。以上のキマーゼの生体内における広範な働きから、かかる酵素の阻害剤はさまざまな疾患の予防および治療剤として有用であると期待される。
【0003】
キマーゼ阻害剤としては、従来、イミダゾリジン誘導体(WO 9604248)、アセトアミド誘導体(WO 9809949)、トリアジンスルホン誘導体(特開平10−245384)、ヒダントイン誘導体(特開平9−31061)、キナゾリン誘導体(WO 9711941)、フェノールエステル誘導体(特開平10−87567)、チアジン誘導体(EP 0713876)、複素環式アミド化合物(WO 9633974、WO 9818794)、ペプチド系化合物〔Proc. Natl. Acad. Sci. U.S.A., 92巻, 6738頁,(1995年)〕などが知られている。しかし、これら化合物は未だ実用化されていない。
近年、チアゾリジン骨格を有し、かつキマーゼ阻害活性を有する化合物が開示されたが(特開2000−95770、特開2000−170977)、これらの化合物も実用化には至っていない。また、ジフェニルチアゾリジンジオン誘導体にはアルドース還元酵素阻害作用を有する化合物がいくつか報告されているが(Chem. Pharm. Bull. 30, 3601−3616 (1982年))、キマーゼ阻害活性についてはまったく報告されていない。
かかる技術水準下において、本発明者らは、顕著なキマーゼ阻害作用を有するジフェニルチアゾリジンジオン誘導体を創製することに成功した。
【0004】
【発明が解決しようとする課題】
本発明の目的は、優れたキマーゼ阻害作用を有する新規ジフェニルチアゾリジンジオン誘導体を提供することである。
【0005】
【課題を解決するための手段】
本発明者らは鋭意研究した結果、優れたキマーゼ阻害作用を有するジフェニルチアゾリジンジオン誘導体を創製し、さらに研究を進めて本発明を完成した。
【0006】
すなわち、本発明は、
一般式(I)
【化2】

Figure 2004123538
〔式中、Aはカルボニル基またはスルホニル基を示し、Rは芳香族炭化水素基を示す。〕で表わされる化合物。
【0007】
(2)上記(1)に記載の化合物を含有してなる医薬。
(3)上記(1)に記載の化合物を含有してなるキマーゼ阻害剤。
(4)キマーゼが関与する疾患の予防又は治療剤である上記(2)に記載の医薬。
(5)キマーゼが関与する疾患が循環器系疾患である上記(4)に記載の医薬。
(6)キマーゼが関与する疾患がアレルギーまたは炎症性疾患である上記(4)に記載の医薬。
(7)キマーゼが関与する疾患が網脈絡膜疾患または緑内障である上記(4)に記載の医薬。
(8)毛様体筋収縮弛緩調節剤である上記(3)に記載のキマーゼ阻害剤。
【0008】
【発明の実施の形態】
本発明のジフェニルチアゾリジンジオン誘導体(I)においてRで示される芳香族炭化水素基としては、炭素数6〜18のものが好ましく、例えばフェニル基、ナフチル基、アントリル基、フェナントレニル基、ナフタセニル基、トリフェニレニル基などが挙げられ、好ましくはナフチル基であり、より好ましくは1−ナフチル基または2−ナフチル基である。
【0009】
本発明の一般式(I)で示される化合物は、例えば次の製造方法により、またはこれに準じて製造することができる。
式(II)
【化3】
X−A−R
【0010】
[式(II)中、Aはカルボニル基またはスルホニル基であり、Rは芳香族炭化水素基であり、Xはハロゲン原子(塩素、臭素、フッ素など)を示す。]で表される酸ハライド誘導体を、
式(III)
【化4】
Figure 2004123538
【0011】
で示される5,5−ジフェニル−1,3−チアゾリジン−2,4−ジオンもしくはその塩と反応させ、再結晶またはカラムクロマトグラフィー等の通常の精製をおこなうことにより、一般式(I)で示される化合物を製造することができる。かかる反応は反応溶媒中、無機および有機塩基の存在下/非存在下で行うことができる。本反応に用いることができる反応溶媒としては、例えば、無水塩化メチレン、クロロホルム、N,N−ジメチルホルムアミド、ベンゼン、トルエン、エチルベンゼン、シクロヘキサン、ヘキサン、ヘプタン、ジエチルエーテル、テトラヒドロフラン等のような反応に悪影響をおよぼさない慣用の溶媒、またはそれらの混合溶媒等が挙げられる。好ましくは、テトラヒドロフランあるいはテトラヒドロフランとN,N−ジメチルホルムアミドの混合溶媒である。
【0012】
本反応に用いることができる無機塩基は、水素化ナトリウム等の水素化アルカリ金属、炭酸カリウムのようなアルカリ金属炭酸塩、炭酸水素ナトリウムのようなアルカリ金属炭酸水素塩である。本反応に用いることができる有機塩基は、トリエチルアミン、ジイソプロピルエチルアミン等のトリアルキルアミン、ピリジン、ルチジン、ピコリン、4−ジメチルアミノピリジン等である。用いる塩基で特に好ましくは、水素化ナトリウムである。かかる無機および有機塩基は式(III)で示されるジフェニルチアゾリジンジオン誘導体1モルに対して0.5〜1.5モル比の範囲で用いるのが好ましい。反応温度は、通常、冷却下から加温下の範囲であり、好ましくは−10℃〜30℃の範囲である。
さらに、本発明は、一般式(I)で示される化合物の各種の溶媒和や結晶多形、およびそれらのプロドラッグも包含する。
【0013】
本発明の一般式(I)で示される化合物は、キマーゼ阻害活性を有するので、ヒトおよび温血動物(例えばサル、イヌ、ネコ、ウサギ、モルモット、ラット)のキマーゼが関与する疾患、例えば心臓・循環器系疾患(経皮経管冠動脈形成術などによる血管障害後の再狭窄、高血圧症、動脈硬化、心筋梗塞、心肥大、心不全)糖尿病性および非糖尿病性腎障害、末梢循環障害等)の予防・治療剤として、眼循環障害性疾患(網脈絡膜疾患;網膜色素変性症,黄斑変性症,虚血性視神経症,虹彩毛様体炎,網膜動脈閉塞症,網膜静脈閉塞症,糖尿病性網膜症,網膜病変に続発する脈絡膜疾患、および緑内障等)の予防・治療剤として、また、毛様体筋収縮弛緩の調節剤として近視および眼精疲労等の改善に、さらに、全身(腎炎、肝炎、肺炎、膵炎等の消化管炎症、アトピー、関節炎、リウマチなど)および眼局所(角結膜炎、ぶどう膜炎、眼窩炎症、春季カタルなど)における炎症性およびアレルギー性疾患等の予防・治療剤として経口的にあるいは非経口的に適宜に使用できる。
【0014】
本発明の一般式(I)で示される化合物の製剤の形態としては、例えば、錠剤、顆粒、散剤、カプセル剤、軟膏剤等の固形製剤および注射剤、点眼剤等の液剤が挙げられる。いずれの製剤も、公知の方法により適宜調製することができる。これら製剤には、通常用いられる賦形剤(澱粉、ブドウ糖、果糖、白糖、リン酸カルシウム等)、結合剤(澱粉、アラビアゴム、ゼラチン溶液、アルギン酸ナトリウム、カルメロース液等)、崩壊剤(澱粉、炭酸カルシウム、結晶セルロース等)、滑沢剤(ステアリン酸、ステアリン酸マグネシウム、タルク等)、吸収促進剤(チオグリコール酸、カプリン酸、カプリル酸等)、緩衝剤(ホウ酸、ホウ砂、酢酸ナトリウム、クエン酸緩衝液、リン酸緩衝液等)、界面活性剤(ラウリル硫酸ナトリウム、ポリソルベート80、ポリオキシエチレン硬化ヒマシ油等)、溶解補助剤(ラウリル硫酸ナトリウム、安息香酸ナトリウム、エチレンジアミン、ヨウ化カリウム等)、保存剤(塩化ベンザルコニウム、パラベン類、クロロブタノール等)、乳化剤(アラビアゴム、トラガント、ゼラチン、ポリビニルピロリドン等)、等張化剤(塩化ナトリウム、グリセリン、マンニトール等)、安定化剤(エデト酸ナトリウム、ピロ亜硫酸ナトリウム等)、pH調整剤(塩酸、クエン酸、水酸化ナトリウム等)等を適宜使用してもよい。
【0015】
本発明の一般式(I)で示される化合物を心臓・循環器系疾患や炎症・アレルギー性疾患の予防・治療剤として全身投与する場合、その用量は、対象とする疾患の種類、使用する化合物の種類、患者の年齢、体重、症状およびその剤形などによっても異なるが、例えば、内服剤の場合は、成人1日数回、1回量約1 mg〜100mg程度投与するのがよい。注射剤の場合は、成人1日1回、約0.1mg〜30mg程度投与するのがよい。また、眼循環障害性疾患や眼の炎症・アレルギー性疾患の予防・治療剤として、さらに毛様体筋収縮弛緩の調節剤として眼局所投与する場合、本発明の一般式(I)で示される化合物を約0.01w/v%〜1.0w/v%、好ましくは約0.05w/v%〜0.5w/v%含有する点眼剤を、1回1〜数滴、1日1〜8回程度点眼するのがよい。なお、眼局所の疾患であっても、網膜など内眼部に化合物を効率よく到達させる目的で全身投与されることもある。
【0016】
本発明の一般式(I)で示される化合物は、目的と必要に応じて、本発明化合物の1種または2種以上を適宜組合わせて使用することもできる。
本発明の一般式(I)で示される化合物は、本発明の目的に反しない限り、本発明に含まれないキマーゼ阻害成分、本発明と同様の薬効を持つ別種の成分、およびその他の薬効成分を適宜組み合わせて使用することもできる。
【0017】
【実施例】
本発明を、以下の実施例および試験例により、さらに詳細に説明するが、本発明はこれらにより何ら限定されるものではない。
なお、5,5−ジフェニル−1,3−チアゾリジン−2,4−ジオンは Sohda 等の方法(Chem. Pharm. Bull. 30(10), 3601−3616 (1982))に準じて合成した。実施例で述べる化合物の物性値において、融点はYanaco MP−500V micro melting point apparatus(補正無し)を、元素分析はPerkin Elmer CHNS/02400を、核磁気共鳴スペクトル(NMR)はVarian Gemini 2000 を用いて測定したものである。
【0018】
(実施例1)
5,5−ジフェニル−3−(2−ナフトイル)−1,3−チアゾリジン−2,4−ジオン
【化5】
Figure 2004123538
【0019】
5,5−ジフェニル−1,3−チアゾリジン−2,4−ジオン2.0gをテトラヒドロフラン(15mL)に溶解し、氷冷下0℃にて水素化ナトリウム(60%,油状)0.36gを加えた。30分間撹拌後、0℃にて2−ナフトイルクロリド 1.70gを加え、室温にて2.5時間撹拌した。注意深く水を加えた後、酢酸エチル200mLを加え分配した。得られた有機層は飽和食塩水で洗浄し、無水硫酸マグネシウムを用いて乾燥した後、溶媒留去した。ヘキサン、イソプロピルエーテル、イソプロピルアルコール混合溶媒にて結晶化後、再結晶し、標題化合物を白色結晶として3.05g得た(化合物1)。H−NMR (CDCl)δ7.41−7.50 (6H, m), 7.52−7.58 (5H, m), 7.65 (1H, ddd, J = 8.1, 6.9, 1.2 Hz), 7.70 (1H, d, J = 8.5 Hz), 7.83−7.91 (3H, m), 8.12 (1H, s).
【0020】
(実施例2)
5,5−ジフェニル−3−(1−ナフトイル)−1,3−チアゾリジン−2,4−ジオン
【化6】
Figure 2004123538
【0021】
5,5−ジフェニル−1,3−チアゾリジン−2,4−ジオンカリウム塩0.2gをテトラヒドロフラン(5mL)に溶解し、室温にて1−ナフトイルクロリド 0.15gを加え、室温にて12時間撹拌した。溶媒を減圧留去したあと、酢酸エチル100mLに溶解した。有機層は飽和食塩水で洗浄し、無水硫酸マグネシウムを用いて乾燥した後、溶媒留去した。さらにシリカゲルクロマトグラフィー(ヘキサン:酢酸エチル=4:1)にて精製し、標題化合物を白色結晶として0.12g得た(化合物2)。 H−NMR (CDCl)δ7.37−7.51 (11H, m), 7.57−7.71 (3H, m), 7.92 (1H, d, J = 8.5 Hz), 8.11 (1H, d, J = 8.2 Hz), 8.80 (1H, d, J = 9.0 Hz).
【0022】
(実施例3)
5,5−ジフェニル−3−(2−ナフチルスルホニル)−1,3−チアゾリジン−2,4−ジオン
【化7】
Figure 2004123538
【0023】
5,5−ジフェニル−1,3−チアゾリジン−2,4−ジオン0.2gをテトラヒドロフラン(10mL)に溶解し、氷冷下0℃にて水素化ナトリウム(60%,油状)0.036gを加えた。30分間撹拌後、0℃にて2−ナフチルスルホニルクロリド0.20gを加え、室温にて2.5時間撹拌した。溶媒を留去した後、酢酸エチル100mLを加え、飽和食塩水で洗浄し、無水硫酸マグネシウムを用いて乾燥した。溶媒を留去した後、酢酸エチルより再結晶し、標題化合物を白色結晶として0.20g得た(化合物3)。H−NMR (CDCl)δ7.24−7.35 (10H, m), 7.67 (1H, ddd, J = 6.9, 5.5, 1.4 Hz), 7.74 (1H, td, J = 8.0, 1.4 Hz), 7.94−8.02 (3H, m), 8.05 (1H, dd, J = 8.8, 1.8 Hz), 8.73 (1H, d, J = 1.2 Hz).
【0024】
(実施例4)
5,5−ジフェニル−3−(1−ナフチルスルホニル)−1,3−チアゾリジン−2,4−ジオン
【化8】
Figure 2004123538
【0025】
5,5−ジフェニル−1,3−チアゾリジン−2,4−ジオン0.2gをテトラヒドロフラン(10mL)に溶解し、氷冷下0℃にて水素化ナトリウム(60%,油状)0.036gを加えた。30分間撹拌後、0℃にて1−ナフチルスルホニルクロリド0.20gを加え、室温にて2.5時間撹拌した。溶媒を留去した後、酢酸エチル100mLを加え、飽和食塩水で洗浄後、無水硫酸マグネシウムを用いて乾燥した。溶媒を留去した後、シリカゲルクロマトグラフィー(ヘキサン:酢酸エチル=2:1)にて精製し、さらに酢酸エチルより再結晶して標題化合物を白色結晶として0.05g得た(化合物4)。 H−NMR (CDCl)δ7.13−7.31 (10H, m), 7.50−7.65 (3H, m), 7.96 (1H, d, J = 7.9 Hz), 8.19 (1H, d, J
= 8.1 Hz), 8.54−8.58 (2H, m).
【0026】
試験例1.キマーゼ阻害活性
キマーゼ阻害活性は Kato 等の方法(J. Biochem., 103巻, 820頁 (1988))に準じて測定した。すなわち、ジメチルスルホキシド(以下、DMSO)に溶解した被験物質 2.5μL に、リコンビナントヒトキマーゼ(特開平10−87567、参考例1〜8)の酵素活性が 2.3 μUnit となるようHEPES緩衝液で調製した溶液 72.5μL を加え、30 ℃で5分間保温した後、基質として 0.6 mM Suc−Ala−Ala−Pro−Phe−MCA(ペプチド研究所製)/トリス緩衝液を 125μL 添加し、反応液とした。反応液を、マルチウェルプレートリーダー CYTOFLUOR Series 4000(パーセプティブバイオシステムズ社製)にセットし、30℃で30分間、蛍光強度の変化を経時的に測定した(励起波長 360 nm、検出波長 450 nm)。
【0027】
コントロールは、被験物質を含まないDMSO2.5μL を使用し、同様に処理し測定した。ブランクはキマーゼ溶液の代わりにHEPES緩衝液を加え、同様に処理し測定した。
キマーゼ阻害率(%)は、蛍光強度の変化からそれぞれ被験物質の近似直線の傾き(S),コントロールの近似直線の傾き(C),被験薬のブランクの近似直線の傾き(Bs), コントロールのブランクの近似直線の傾き(Bc)を算出し、下記式から算出した。
阻害率(%)=〔1−(S−Bs)/(C−Bc)〕×100
【0028】
(試験結果)
本発明の化合物につき、この方法で求めたキマーゼ阻害活性より50%阻害濃度(IC50)を算出した。その結果を表1に示す。本結果は、本発明の一般式(I)で示される化合物はキマーゼ阻害活性を有することを示す。
【表1】
Figure 2004123538
【0029】
製剤例1 錠剤
化合物1                 50mg
乳糖                   80mg
デンプン                 17mg
ステアリン酸マグネシウム          3mg
結晶セルロース              10mg
以上の成分を1錠分の材料として、常法により錠剤を成形した。この錠剤は糖衣およびフィルム(例えばエチルセルロース等)でコーティングしてもよい。
【0030】
製剤例2 カプセル剤
化合物1                75mg
マンニット               75mg
デンプン                17mg
ステアリン酸カルシウム          3mg
以上の成分を1カプセル剤の材料として均一に混合し、常法により顆粒状とし、硬カプセルに充填した。この充填する顆粒は必要に応じて糖衣およびフィルム(例えばエチルセルロース等)でコーティングしてもよい。
【0031】
製剤例3 水性懸濁点眼剤
化合物1                0.5g
ヒドロキシプロピルメチルセルロース   0.1g
塩化ナトリウム             0.9g
リン酸2水素ナトリウム・2水和物    0.1g
塩化ベンザルコニウム          0.005g
0.1N水酸化ナトリウム        適量(pH7.2)
精製水                 全100mL
精製水約80mLにヒドロキシプロピルメチルセルロースを加温して分散させた後、室温まで冷却して溶かした、この溶液に塩化ナトリウム、リン酸2水素ナトリウム・2水和物および塩化ベンザルコニウムを加えて溶かし、0.1N水酸化ナトリウムを加えpHを7.2に調整した。この液に化合物1を添加し、ホモジナイザーにより均一に懸濁させた。精製水を加え、全量100mLとし、水性懸濁点眼剤を調製した。
【0032】
【発明の効果】
本発明の一般式(I)で示される化合物は優れたキマーゼ阻害活性を有するので、キマーゼが関与する種々の疾患、例えば全身および眼局所の循環器系疾患、炎症性およびアレルギー性疾患の予防/治療剤として、また、毛様体筋の収縮緊張の調節剤として有用である。[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to novel diphenylthiazolidinedione derivatives and medicaments containing them. These novel compounds have a significant chymase inhibitory activity and are useful for the prevention and treatment of various diseases involving chymase.
[0002]
[Prior art]
Chymase is one of the neutral serine proteases (about 30 kD), but it is an enzyme that converts angiotensin I to angiotensin II in tissues [J. Biol. Chem. , 265, 22348 (1990)], it is implicated in the development of cardiac and circulatory diseases caused by angiotensin II. In addition, chymase has been shown to activate collagenase to active collagenase, to limit the extracellular matrix, thrombin, and IgG, and to promote the release of histamine from mast cells [J. Biol. Chem. 103, 820 (1988)], chymase is considered to be involved in allergies or inflammatory diseases. Furthermore, although the function of chymase in ocular tissues has not been fully elucidated yet, it has been implicated in the regulation of ocular inflammation and ocular allergy, ocular circulation (ocular blood flow, aqueous humor circulation) and ciliary muscle. It is thought that there is. From the above-mentioned widespread action of chymase in vivo, inhibitors of such enzymes are expected to be useful as agents for preventing and treating various diseases.
[0003]
As chymase inhibitors, conventionally, imidazolidine derivatives (WO 9604248), acetamido derivatives (WO 9809949), triazine sulfone derivatives (JP-A-10-245384), hydantoin derivatives (JP-A 9-31061), and quinazoline derivatives (WO 9711941) Phenol ester derivatives (JP-A-10-87567), thiazine derivatives (EP 0713876), heterocyclic amide compounds (WO 9633974, WO 9818794), peptide compounds [Proc. Natl. Acad. Sci. U. S. A. , 92, 6738, (1995)]. However, these compounds have not yet been put to practical use.
In recent years, compounds having a thiazolidine skeleton and having chymase inhibitory activity have been disclosed (JP-A-2000-95770, JP-A-2000-170977), but these compounds have not yet been put to practical use. Some compounds having an aldose reductase inhibitory activity have been reported as diphenylthiazolidinedione derivatives (Chem. Pharm. Bull. 30, 3601-3616 (1982)), but chymase inhibitory activity has been completely reported. Not.
Under the state of the art, the present inventors have succeeded in creating a diphenylthiazolidinedione derivative having a significant chymase inhibitory action.
[0004]
[Problems to be solved by the invention]
An object of the present invention is to provide a novel diphenylthiazolidinedione derivative having an excellent chymase inhibitory action.
[0005]
[Means for Solving the Problems]
As a result of intensive studies, the present inventors have created a diphenylthiazolidinedione derivative having an excellent chymase inhibitory action, and have further studied to complete the present invention.
[0006]
That is, the present invention
General formula (I)
Embedded image
Figure 2004123538
[In the formula, A represents a carbonyl group or a sulfonyl group, and R represents an aromatic hydrocarbon group. ] The compound represented by these.
[0007]
(2) A medicament comprising the compound according to (1).
(3) A chymase inhibitor comprising the compound according to (1).
(4) The medicament according to the above (2), which is a prophylactic or therapeutic agent for a disease associated with chymase.
(5) The medicament according to the above (4), wherein the disease associated with chymase is a circulatory disease.
(6) The medicament according to the above (4), wherein the disease associated with chymase is an allergic or inflammatory disease.
(7) The medicament according to (4), wherein the disease associated with chymase is retinochoroidal disease or glaucoma.
(8) The chymase inhibitor according to the above (3), which is a regulator of ciliary muscle contraction and relaxation.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
The aromatic hydrocarbon group represented by R in the diphenylthiazolidinedione derivative (I) of the present invention is preferably one having 6 to 18 carbon atoms, such as phenyl, naphthyl, anthryl, phenanthrenyl, naphthacenyl, and triphenylenyl. And a naphthyl group, more preferably a 1-naphthyl group or a 2-naphthyl group.
[0009]
The compound represented by the general formula (I) of the present invention can be produced, for example, by the following production method or according thereto.
Formula (II)
Embedded image
XAR
[0010]
[In the formula (II), A represents a carbonyl group or a sulfonyl group, R represents an aromatic hydrocarbon group, and X represents a halogen atom (such as chlorine, bromine, or fluorine). An acid halide derivative represented by the formula:
Formula (III)
Embedded image
Figure 2004123538
[0011]
By reacting with 5,5-diphenyl-1,3-thiazolidine-2,4-dione or a salt thereof represented by the general formula (I), followed by ordinary purification such as recrystallization or column chromatography. Can be produced. Such a reaction can be performed in a reaction solvent in the presence / absence of inorganic and organic bases. Examples of the reaction solvent that can be used in this reaction include, for example, anhydrous methylene chloride, chloroform, N, N-dimethylformamide, benzene, toluene, ethylbenzene, cyclohexane, hexane, heptane, diethyl ether, and tetrahydrofuran. Or a mixed solvent thereof. Preferred is tetrahydrofuran or a mixed solvent of tetrahydrofuran and N, N-dimethylformamide.
[0012]
Inorganic bases that can be used in this reaction include alkali metal hydrides such as sodium hydride, alkali metal carbonates such as potassium carbonate, and alkali metal bicarbonates such as sodium hydrogen carbonate. Organic bases that can be used in this reaction include trialkylamines such as triethylamine and diisopropylethylamine, pyridine, lutidine, picoline, 4-dimethylaminopyridine and the like. Particularly preferred base used is sodium hydride. Such inorganic and organic bases are preferably used in a molar ratio of 0.5 to 1.5 with respect to 1 mol of the diphenylthiazolidinedione derivative represented by the formula (III). The reaction temperature is usually in a range from cooling to heating, and preferably in a range of -10C to 30C.
Furthermore, the present invention includes various solvates and polymorphs of the compound represented by the general formula (I), and prodrugs thereof.
[0013]
Since the compound represented by the general formula (I) of the present invention has chymase inhibitory activity, diseases involving chymase in humans and warm-blooded animals (eg, monkeys, dogs, cats, rabbits, guinea pigs, rats), such as heart diseases Cardiovascular disease (restenosis after vascular injury due to percutaneous transluminal coronary angioplasty, hypertension, arteriosclerosis, myocardial infarction, cardiac hypertrophy, heart failure) diabetic and non-diabetic renal disorder, peripheral circulatory disorder As prophylactic / therapeutic agents, ocular circulation disorders (retinochoroidal diseases; retinitis pigmentosa, macular degeneration, ischemic optic neuropathy, iridocyclitis, retinal artery occlusion, retinal vein occlusion, diabetic retinopathy) , As a preventive / therapeutic agent for choroidal diseases secondary to retinal lesions, and glaucoma), and as a regulator of ciliary muscle contraction / relaxation to improve myopia and asthenopia, as well as to improve systemic (nephritis, hepatitis, Pneumonia, pancreas Orally or non-orally as a preventive / therapeutic agent for inflammatory and allergic diseases such as gastrointestinal inflammation, atopy, arthritis, rheumatism, etc. and local ocular (keratoconjunctivitis, uveitis, orbital inflammation, spring catarrh). It can be used orally as appropriate.
[0014]
Examples of the form of the preparation of the compound represented by the general formula (I) of the present invention include solid preparations such as tablets, granules, powders, capsules and ointments and liquid preparations such as injections and eye drops. Any of the preparations can be appropriately prepared by a known method. These preparations include commonly used excipients (starch, glucose, fructose, sucrose, calcium phosphate, etc.), binders (starch, gum arabic, gelatin solution, sodium alginate, carmellose solution, etc.), disintegrants (starch, calcium carbonate, etc.). , Crystalline cellulose, etc.), lubricants (stearic acid, magnesium stearate, talc, etc.), absorption enhancers (thioglycolic acid, capric acid, caprylic acid, etc.), buffering agents (boric acid, borax, sodium acetate, citric acid) Acid buffer, phosphate buffer, etc., surfactant (sodium lauryl sulfate, polysorbate 80, polyoxyethylene hydrogenated castor oil, etc.), dissolution aid (sodium lauryl sulfate, sodium benzoate, ethylenediamine, potassium iodide, etc.) , Preservatives (benzalkonium chloride, parabens, chlorobutanol, etc.), milk Agents (arabic gum, tragacanth, gelatin, polyvinylpyrrolidone, etc.), tonicity agents (sodium chloride, glycerin, mannitol, etc.), stabilizers (sodium edetate, sodium pyrosulfite, etc.), pH adjusters (hydrochloric acid, citric acid) , Sodium hydroxide, etc.) may be used as appropriate.
[0015]
When the compound represented by the general formula (I) of the present invention is systemically administered as a prophylactic / therapeutic agent for a cardiovascular / circulatory system disease or an inflammatory / allergic disease, the dose depends on the kind of the target disease and the compound to be used. Depending on the type, age, weight, symptoms and dosage form of the patient, for example, in the case of oral administration, it is preferable to administer once a day about 1 mg to 100 mg for an adult several times a day. In the case of an injection, it is preferable to administer about 0.1 to 30 mg once a day for an adult. In addition, when topically administered to the eye as an agent for preventing or treating ocular circulatory disorders or ocular inflammation or allergic diseases, and as a regulator of ciliary muscle contraction and relaxation, it is represented by the general formula (I) of the present invention. One to several drops of eye drops containing the compound in an amount of about 0.01 w / v% to 1.0 w / v%, preferably about 0.05 w / v% to 0.5 w / v%, one to several drops a day It is recommended to instill about 8 times. In addition, even if it is a local disease of the eye, it may be administered systemically for the purpose of efficiently reaching the compound to the inner eye such as the retina.
[0016]
The compound represented by the general formula (I) of the present invention may be used alone or in combination of two or more of the compounds of the present invention, if necessary and desired.
The compound represented by the general formula (I) of the present invention includes a chymase-inhibiting component which is not included in the present invention, another component having the same medicinal properties as the present invention, and other medicinal components, as long as the object of the present invention is not adversely affected. Can be used in combination as appropriate.
[0017]
【Example】
The present invention will be described in more detail with reference to the following examples and test examples, but the present invention is not limited thereto.
In addition, 5,5-diphenyl-1,3-thiazolidine-2,4-dione was synthesized according to a method of Sohda et al. (Chem. Pharm. Bull. 30 (10), 3601-3616 (1982)). In the physical property values of the compounds described in the examples, the melting point was measured using Yanaco MP-500V micro melting point apparatus (without correction), the elemental analysis was performed using Perkin Elmer CHNS / 02400, and the nuclear magnetic resonance spectrum (NMR) was measured using Varian Gemini 2000. Measured.
[0018]
(Example 1)
5,5-diphenyl-3- (2-naphthoyl) -1,3-thiazolidine-2,4-dione
Figure 2004123538
[0019]
2.0 g of 5,5-diphenyl-1,3-thiazolidine-2,4-dione was dissolved in tetrahydrofuran (15 mL), and 0.36 g of sodium hydride (60%, oil) was added at 0 ° C. under ice cooling. Was. After stirring for 30 minutes, 1.70 g of 2-naphthoyl chloride was added at 0 ° C, and the mixture was stirred at room temperature for 2.5 hours. After carefully adding water, 200 mL of ethyl acetate was added and partitioned. The obtained organic layer was washed with saturated saline, dried using anhydrous magnesium sulfate, and then the solvent was distilled off. After recrystallization from a mixed solvent of hexane, isopropyl ether and isopropyl alcohol, the crystals were recrystallized to give 3.05 g of the title compound as white crystals (Compound 1). 1 H-NMR (CDCl 3) δ7.41-7.50 (6H, m), 7.52-7.58 (5H, m), 7.65 (1H, ddd, J = 8.1, 6. 9, 1.2 Hz), 7.70 (1H, d, J = 8.5 Hz), 7.83-7.91 (3H, m), 8.12 (1H, s).
[0020]
(Example 2)
5,5-diphenyl-3- (1-naphthoyl) -1,3-thiazolidine-2,4-dione
Figure 2004123538
[0021]
0.2 g of potassium salt of 5,5-diphenyl-1,3-thiazolidine-2,4-dione was dissolved in tetrahydrofuran (5 mL), 0.15 g of 1-naphthoyl chloride was added at room temperature, and the mixture was added at room temperature for 12 hours. Stirred. After the solvent was distilled off under reduced pressure, the residue was dissolved in 100 mL of ethyl acetate. The organic layer was washed with saturated saline, dried using anhydrous magnesium sulfate, and the solvent was distilled off. Further purification was performed by silica gel chromatography (hexane: ethyl acetate = 4: 1) to obtain 0.12 g of the title compound as white crystals (compound 2). 1 H-NMR (CDCl 3 ) δ 7.37-7.51 (11H, m), 7.57-7.71 (3H, m), 7.92 (1H, d, J = 8.5 Hz), 8.11 (1H, d, J = 8.2 Hz), 8.80 (1H, d, J = 9.0 Hz).
[0022]
(Example 3)
5,5-diphenyl-3- (2-naphthylsulfonyl) -1,3-thiazolidine-2,4-dione
Figure 2004123538
[0023]
0.2 g of 5,5-diphenyl-1,3-thiazolidine-2,4-dione was dissolved in tetrahydrofuran (10 mL), and 0.036 g of sodium hydride (60%, oil) was added at 0 ° C. under ice cooling. Was. After stirring for 30 minutes, 0.20 g of 2-naphthylsulfonyl chloride was added at 0 ° C., and the mixture was stirred at room temperature for 2.5 hours. After the solvent was distilled off, 100 mL of ethyl acetate was added, and the mixture was washed with brine and dried using anhydrous magnesium sulfate. After evaporating the solvent, the residue was recrystallized from ethyl acetate to obtain 0.20 g of the title compound as white crystals (Compound 3). 1 H-NMR (CDCl 3) δ7.24-7.35 (10H, m), 7.67 (1H, ddd, J = 6.9, 5.5, 1.4 Hz), 7.74 (1H , Td, J = 8.0, 1.4 Hz), 7.94-8.02 (3H, m), 8.05 (1H, dd, J = 8.8, 1.8 Hz), 8. 73 (1H, d, J = 1.2 Hz).
[0024]
(Example 4)
5,5-diphenyl-3- (1-naphthylsulfonyl) -1,3-thiazolidine-2,4-dione
Figure 2004123538
[0025]
0.2 g of 5,5-diphenyl-1,3-thiazolidine-2,4-dione was dissolved in tetrahydrofuran (10 mL), and 0.036 g of sodium hydride (60%, oil) was added at 0 ° C. under ice cooling. Was. After stirring for 30 minutes, 0.20 g of 1-naphthylsulfonyl chloride was added at 0 ° C., and the mixture was stirred at room temperature for 2.5 hours. After the solvent was distilled off, 100 mL of ethyl acetate was added, and the mixture was washed with brine and dried over anhydrous magnesium sulfate. After evaporating the solvent, the residue was purified by silica gel chromatography (hexane: ethyl acetate = 2: 1), and further recrystallized from ethyl acetate to obtain 0.05 g of the title compound as white crystals (compound 4). 1 H-NMR (CDCl 3 ) δ 7.13-7.31 (10H, m), 7.50-7.65 (3H, m), 7.96 (1H, d, J = 7.9 Hz), 8.19 (1H, d, J
= 8.1 Hz), 8.54-8.58 (2H, m).
[0026]
Test Example 1 Chymase inhibitory activity Chymase inhibitory activity was measured according to the method of Kato et al. (J. Biochem., 103, 820 (1988)). That is, 2.5 μL of a test substance dissolved in dimethyl sulfoxide (hereinafter referred to as DMSO) was added to a HEPES buffer solution so that the enzyme activity of recombinant human chymase (JP-A-10-87567, Reference Examples 1 to 8) was 2.3 μUnit. After adding 72.5 μL of the prepared solution and keeping the mixture at 30 ° C. for 5 minutes, 125 μL of 0.6 mM Suc-Ala-Ala-Pro-Phe-MCA (manufactured by Peptide Research Institute) / Tris buffer was added as a substrate. The reaction solution was used. The reaction solution was set in a multi-well plate reader CYTOFLUOR Series 4000 (manufactured by Perceptive Biosystems) and the change in fluorescence intensity was measured over time at 30 ° C. for 30 minutes (excitation wavelength 360 nm, detection wavelength 450 nm). ).
[0027]
As a control, 2.5 μL of DMSO containing no test substance was used, and treated and measured in the same manner. Blanks were treated and measured in the same manner as above, except that a HEPES buffer was added instead of the chymase solution.
The chymase inhibition rate (%) was calculated from the change in the fluorescence intensity based on the slope of the approximate straight line of the test substance (S), the slope of the approximate straight line of the control (C), the slope of the approximate straight line of the test drug blank (Bs), The slope (Bc) of the approximate straight line of the blank was calculated and calculated from the following equation.
Inhibition rate (%) = [1- (S-Bs) / (C-Bc)] × 100
[0028]
(Test results)
For the compound of the present invention, a 50% inhibitory concentration (IC 50 ) was calculated from the chymase inhibitory activity determined by this method. Table 1 shows the results. This result indicates that the compound represented by the general formula (I) of the present invention has chymase inhibitory activity.
[Table 1]
Figure 2004123538
[0029]
Formulation Example 1 Tablet compound 1 50 mg
Lactose 80mg
17mg starch
Magnesium stearate 3mg
Microcrystalline cellulose 10mg
Using the above components as materials for one tablet, tablets were formed in a conventional manner. The tablets may be coated with sugar coating and a film such as ethyl cellulose.
[0030]
Formulation Example 2 Capsule Compound 1 75 mg
Mannit 75mg
17mg starch
3mg calcium stearate
The above components were uniformly mixed as a material for one capsule, granulated by a conventional method, and filled in a hard capsule. The granules to be filled may be coated with a sugar coating and a film (for example, ethyl cellulose or the like) as necessary.
[0031]
Formulation Example 3 aqueous suspension ophthalmic compound 1 0.5 g
Hydroxypropyl methylcellulose 0.1 g
0.9 g of sodium chloride
Sodium dihydrogen phosphate dihydrate 0.1 g
Benzalkonium chloride 0.005g
0.1N sodium hydroxide suitable amount (pH 7.2)
Purified water 100mL
After heating and dispersing hydroxypropyl methylcellulose in about 80 mL of purified water, the mixture was dissolved by cooling to room temperature. Sodium chloride, sodium dihydrogen phosphate dihydrate and benzalkonium chloride were added to this solution. After dissolution, 0.1N sodium hydroxide was added to adjust the pH to 7.2. Compound 1 was added to this solution, and uniformly suspended with a homogenizer. Purified water was added to adjust the total volume to 100 mL to prepare an aqueous suspension ophthalmic solution.
[0032]
【The invention's effect】
Since the compound represented by the general formula (I) of the present invention has excellent chymase inhibitory activity, it prevents various diseases involving chymase, such as systemic and local ocular circulatory diseases, inflammatory and allergic diseases. It is useful as a therapeutic agent and as a regulator of ciliary muscle contraction tone.

Claims (8)

一般式(I)
Figure 2004123538
〔式中、Aはカルボニル基またはスルホニル基を示し、Rは芳香族炭化水素基を示す。〕で表わされる化合物。
General formula (I)
Figure 2004123538
[In the formula, A represents a carbonyl group or a sulfonyl group, and R represents an aromatic hydrocarbon group. ] The compound represented by these.
請求項1に記載の化合物を含有してなる医薬。A medicament comprising the compound according to claim 1. 請求項1に記載の化合物を含有してなるキマーゼ阻害剤。A chymase inhibitor comprising the compound according to claim 1. キマーゼが関与する疾患の予防又は治療剤である請求項2に記載の医薬。The medicament according to claim 2, which is an agent for preventing or treating a disease associated with chymase. キマーゼが関与する疾患が循環器系疾患である請求項4に記載の医薬。The medicament according to claim 4, wherein the disease associated with chymase is a cardiovascular disease. キマーゼが関与する疾患がアレルギーまたは炎症性疾患である請求項4に記載の医薬。The medicament according to claim 4, wherein the disease associated with chymase is an allergic or inflammatory disease. キマーゼが関与する疾患が網脈絡膜疾患または緑内障である請求項4に記載の医薬。The medicament according to claim 4, wherein the disease associated with chymase is retinochoroidal disease or glaucoma. 毛様体筋収縮弛緩調節剤である請求項3に記載のキマーゼ阻害剤。The chymase inhibitor according to claim 3, which is a regulator of ciliary muscle contraction and relaxation.
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