TW593278B - 1-aryl-or 1-alkylsulfonylbenzazole derivatives as 5-hydroxytryptamine-6 ligands - Google Patents
1-aryl-or 1-alkylsulfonylbenzazole derivatives as 5-hydroxytryptamine-6 ligands Download PDFInfo
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- TW593278B TW593278B TW090132299A TW90132299A TW593278B TW 593278 B TW593278 B TW 593278B TW 090132299 A TW090132299 A TW 090132299A TW 90132299 A TW90132299 A TW 90132299A TW 593278 B TW593278 B TW 593278B
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- benzenesulfonyl
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Description
593278 五、發明說明(1 ) 發_明背景 口午夕中S神經系統疾病例如焦慮,憂鬱,運動神經疾病 等等相信涉及神經傳遞物質5_羥色胺(5_HT或ser()t〇nin) 的失常。5 -經色胺座落於中樞及周邊神經系統,且知可影 響多種狀況,包括精神疾病,運動神經活性,飮食行爲, 性活性’以及神經內分泌調節作用等等。5 _羥色胺的功效 疋經由各種5-HT受器亞型(5-HT receptor subtypes)調 節。已知的5·ΗΤ受器包括各種5-HT1(例如5-HT1A),5-ΗΤ2(例如 5-ΗΤ2Α),5-ΗΤ3,5-ΗΤ4,5-ΗΤ5,5-ΗΤ6 及 5-ΗΤ7亞型。 最近鑑定的人類5 -羥色胺-6 ( 5 - ΗΤ6 )受器亞型已被選殖 ,並發表其mRNA的廣泛分布。已於嗅球,紋狀體,核斜 倚區(nucleus accumbens),齒回以及海馬體的CA1,CA2 及CA3區觀察到最高程度的5-HT6受器mRNA。小腦顆粒層 ,部分間腦核,扁桃體,及皮質內發現低程度的5-HT6受 器mRNA。北方點墨分析顯現5-HT6受器mRNA完全存在於 腦部,僅有少數證明存在於周邊組織。5 -HT6受器除了其 mRNA座落於紋狀體,嗅球及核斜倚區之外,許多抗精神病 劑爲5-HT6受器高親和力,故推定這些化合物的許多臨床 作用可能透過此受器仲介。因此相信5 -HT6受器配體有效 用於若干CNS疾病之治療,例如焦慮’憂鬱’癲癇’強迫 症,注意力不足症,偏頭痛,認知記憶之增強(例如阿茲 海默症(A 1 z h e i m e r ’ s d i s e a s e )之治療)’睡眠疾病’飮食 593278 五、發明說明(2) 疾病(例如厭食或貪食),神經退化性疾病(例如頭創傷或 中風),恐慌症發作,戒除藥物濫用(例如古柯鹼,酒精, 尼古丁或苯并二吖庚因),精神分裂症等等,或若干腸胃 道疾病之治療,例如刺激性腸症候群。 因此,本發明目的之一爲提供化合物可用於作爲治療劑 ’治療5 - HT6受器相關或受其影響之中樞神經系統疾病。 本發明另一目的爲提供治療方法及醫藥組成物,可用於 治療5 - HT6受器相關或受其影響之中樞神經系統疾病精神 疾病。 本發明特色爲所提供之化合物也可用於進一步硏究並說 明5-HT6受器。 本發明這些及其他目的與特色將更淸楚詳細說明如下。 1明槪沭 本發明提供一種式I化合物平4
其中 w 爲 S〇2 , C〇,CONH , CSNH 或 CH2 ; X爲CR7或N ; Y爲CR8或N,但當X爲N時,則Y必須爲CRS ; 593278 五、發明說明(3) Z爲〇,S〇P $ NR9 ; 心及R2各自獨立爲Η或CVC6烷基; η爲整數2,3或4 ; R3及R4各自獨立爲Η,CNR]()NRnR12,或選擇性經取代之 CVQ烷基,C2-C6烯基,CVC6炔基,C3-C6環烷基,環雜 烷基,芳基或雜芳基,或h及R4可與其附著的原子共同 形成選擇性經取代之3-至6-員環’其選擇性含有額外選 自0,N或S之雜原子; R5 爲 Η ,鹵素,CN ,〇RI3 , C02R14 , C〇NR】5R16 , CNR17NR18R19,S02NR2〇R2I,SOqR22,或選擇性經取代之 c!-c6烷基,c2-c6烯基,(:2<6炔基’ c3-c6環烷基,環雜烷基 ,苯基或雜芳基; m爲整數1,2或3 ; p及q各自獨立爲〇或整數1或2; R6爲選擇性經取代之…-(^烷基’芳基或雜芳基; R7及Rs各自獨立爲Η,鹵素或選擇性經取代之C!-C6烷 基,芳基,雜芳基或CrG院氧基; ^爲Η或選擇性經取代之C】-C6烷基,C2-C6烯基,C2-C6 炔基,C3-C6環烷基,環雜烷基,芳基或雜芳基; R](),R",Rj2’ Rl5’ Rl7’ Rl8 及 Rl9 各自獨 1 爲 Η 或 C丨-C 4院基; R]3爲Η,COR23或選擇性經取代之C】-C6烷基,C2-C6烯 基,(^-〇6快基’方基或雜方基, 593278 五、 發明說明 (4) Ri 4爲Η或選擇性經取代之Cj - C6烷基,芳基 或雜 芳基 , R 2 〇及 各自獨立爲Η或選擇性經取代之( :i-C6 烷基 ? 芳 基 或雜芳 基; R 2 2 及 R 2 3 各自獨立爲選擇性經取代之Cj-C6 院基 ,芳 基 或 雜 方基; 或 其醫藥 可接受鹽。 本 發明也 提供方法及組成物可用於治療5-HT6受 器相 關 或 受 其影響 之中樞神經系統疾病。 發 明 之詳細 說明 5- 羥色胺 -6(5-HT6)受器爲最近以分子選殖 鑑定 之受 器 之 一 。由於 其能結合廣大範圍之精神病治療用 治療 性化合 物 及其引 人注目地分佈於腦部,故已顯著引 起興 趣於 那 能 與該受 器交互作用或影響他的新穎化合物 。目 前尙 不 知 兀 全選擇 性的激動劑(agonist)。顯著的努 力成 果了 解 5- HT6受器 於精神病治療,認知機能障礙,運 動神 經功 能 及 控 制,記 憶,情緒等等可能扮演的角色。爲 此, 認真 的 尋 求 展現結 合親和力於5-HT6受器之化合物作爲硏究 5- HT6 受器之 助手以及作爲有潛力之治療劑於中 樞神 經系 統 疾 病 之治療 〇 現 今令人 驚訝地發現式I之1 -芳基-或1 -烷 基磺 醯基 苯 并 氮 唑衍生 物展現5-HT6親和力。故該苯并氮 唑衍 生物 有 利 於 作爲與 5-HT6受器相關或受其影響之中 樞神 經系 統 (CNS )疾病治療用之有效治療劑。因此本發明提供式I -6 - 之 593278 五、發明說明(5) 1 -芳基-或1 -烷基磺醯基苯并氮唑衍生物
其中 W 爲 S〇2 , C〇,C〇NH , CSNH 或 CH2 ; X爲CR7或N ; Y爲CR8或N,但當X爲N時,則Y必須爲CR8 ; Z 爲〇,soP m NR9 ; Ri及R2各自獨立爲Η或Cj -C6烷基; n爲整數2,3或4 ; r3 及R4各自獨立爲 Η,CNR10NR】iR12,或 巳 擇 性 經 取代 之 C] C( ,烷基 ,c2-c6 烯基,c2-c6 炔基,C3d C6 :Π四 院 基 ,環 雜 院 基 ,芳基 或雜芳基 ,或R:3及 r4可與其 附 著 的 原 子共 同 形 成 選擇性 :經取代之 3-至6-員環,其選 擇 性 含 有 額外 CEB 培 白 〇 ,N或 S之雜原子 > r5 爲 Η ,鹵素 , 'CN , OR 13 ? C〇2R 1 4 ,C0NR 15^16 1 CNRr 7NR】8R 1 9 5 S02NR2〇· R2】’ S〇qR2 2,或選擇 性 經 取 代 之C!- c6 院 基,C: 厂c6烯基, c2-c6炔基 ,c3-c6 環 烷 基 TS3. 雜烷 基 ,苯基或雜芳基; m爲整數1,2或3 ; 593278 五、發明說明(6) P及Q各自獨立爲0或整數1或2; I爲選擇性經取代之烷基,芳基或雜芳基; ^7及R8各自獨立爲H,鹵素或選擇性經取代之(^-匕烷 基,芳基,雜芳基或^-匕烷氧基; R9爲Η或選擇性經取代之CVC6烷基,C2-C6烯基,C2-C6 炔基,C3-C6環烷基,環雜烷基,芳基或雜芳基; RlO,R]1,Rl2,Rl5,Rl6,Rl7,Rl8 及 Rl9 各自獨立爲 Η 或 C! -C4烷基; R13爲Η,COR23或選擇性經取代之烷基,C2-C6烯 基,C2-C6炔基,芳基或雜芳基; R]4爲Η或選擇性經取代之Ci-q烷基,芳基或雜芳基; R20及R21各自獨立爲Η或選擇性經取代之烷基, 芳基或雜芳基; R22及R23各自獨立爲選擇性經取代之烷基,芳基 或雜芳基; 或其醫藥可接受鹽。 說明書及申請專利範圍中使用“鹵素”一詞是指Bi:,C1, I或F ; “環雜烷基”一詞是指含有1或2相同或不同選自 N,0或S之雜原子之C5 - C7環院基環系,以及選擇性含有 一雙鍵。代表性環烷基環系包括文中所指之下列各環,其 中Q爲NR,0或S,以及R爲Η或如下所述之選擇性取代 基0 593278 五、發明說明(7)
33乃弋 弋弋弋Q
R 同樣的,說明書及申請專利範圍中使用“雜芳基”一詞是 指05-(:10芳香環系,含有1或2相同或不同之選自N,〇 或S之雜原子。此等雜芳基環系包括吡咯基,唑基,噚唑 基,噻唑基,咪唑基,呋喃基,噻吩基,喹啉基,異喹啉 基,吲哚啉基,苯并噻吩基,苯并呋喃基,苯并異噚唑基 等等。“鹵烷基”一詞是指CnH2n + 1基,含有1至2n+l個相 同或不同之鹵原子;以及“鹵烷氧基”一詞是指OCnH2n + I基 ,含有1至2n + l個相同或不同之鹵原子。 於說明書及申請專利範圍中,當所指烷基,C2-C6 烯基,C2-C6炔基,C3-C7環烷基,環雜烷基,芳基或雜芳 基選擇性經取代時,此選擇性存在之取代基可爲一或多種 慣用於發展醫藥組成物或改良此化合物以影響其結構/活 性、持久性、吸收性、穩定性或其他有益特性者。此等取 代基之特定實例包括鹵素原子,硝基,氰基,氰硫基,氰 氧基,羥基,烷基,鹵烷基,烷氧基,鹵烷氧基,胺基, 院胺基,二烷胺基,甲醯基,烷氧羰基,羧基,烷醯基, 院硫基,烷亞磺醯基,烷磺醯基,胺甲醯基,烷醯胺基, 苯基,苯氧基,苄基,苄氧基,雜環基或環烷基,以鹵素 593278 五、發明說明(8) 原子或低級烷基爲佳。典型可存在至多3個取代基。當任 何上述取代基代表或含有烷基取代基時,可爲直線或分支 且含至多1 2個碳原子,較佳至多6個碳原子,更佳至多4 個碳原子。 醫藥可接受鹽可爲式I化合物形成之酸加成鹽,以及醫 藥可接受酸例如磷酸,硫酸,氫氯酸,氫溴酸,檸檬酸, 順-丁烯二酸,琥珀酸,反-丁烯二酸,乙酸,乳酸,硝酸 ,磺酸,對甲苯磺酸,甲磺酸等等。 本發明較佳化合物爲式I化合物中W爲S02或C0。較佳 者亦爲式I化合物中Z爲0。另一較佳之本發明化合物爲 式I化合物中η爲2。更佳之本發明化合物爲式I化合物 中R6爲選擇性經取代之芳基或雜芳基。 本發明之更佳化合物爲式I化合物中W爲S02 ; h及R2 爲Η;以及η爲2。另一本發明之更佳化合物爲式I化合 物中W爲S02 ; Z爲0 ; X爲CR7 ;以及R3及R4可與其附著 的原子共同形成選擇性經取代之5 _至6 _員環,其選擇性 含有一 0原子。 本發明之較佳化合物爲: 2 ·{[ 1 -(苯磺醯基)-1 Η -吲哚-4 -基]氧基}乙胺; 4 - ( 2 -嗎福啉-4 -基乙氧基)-1 -(苯磺醯基)_ 1 η -吲哚; 1-(苯擴醯基)-4 - ( 2 -六氫卩比Π定-1 -基乙氧基)-1 Η -卩弓丨哚; Ν-(2-{[1-(苯磺醯基)-1Η -吲哚-4-基]氧基}乙基)-四氫 -2Η-吡喃-4-胺; -10- 593278 五、發明說明(9) N,N -貳(3 -甲氧苄基)-2·{[κ(苯磺醯基)_1H-吲哚•基] 氧基}乙胺; N-(3 -甲氧苄基)-2-{[1-(苯磺醯基卜丨^吲哚_4_基]氧 基}乙胺; Ν,Ν·二甲基-2- {[1-(苯磺醯基)-1}1-吲哚_4_基]氧基}乙 胺; 1 -(苯磺醯基)-4 · [ 2 · ( 1 -六氫吡啶基)乙氧基卜1 Η _吲唑 2 - {[ 1 -(苯磺醯基)-1 Η -吲D坐-4 -基]氧基)乙胺; Ν·(2-{[1-(苯磺醯基)-1Η -吲唑_4_基]氧基}乙基)-四氫 -2Η-吡喃·4·胺; Ν - ( 2 - {[ 1 -(苯磺醯基)-1 Η -吲唑-4 -基]氧基}乙基)-四氫 -2Η-噻吡喃-4-胺; 1 - [( 4 -硝苯基)磺醯基]-4 - [ 2 ·( 1 -六氫吡啶基)乙氧基卜 1Η -吲唑; 1-[(4 -氟苯基)磺醯基]·4-[2-(1-六氫吡啶基)乙氧基]· 1 Η -吲唑; 4 - ( { 4 - [ 2 - ( 1 -六氫D比卩定基)乙氧基]· 1 η _卩彳丨卩坐—1 ·基丨磺酿 基)苯胺; 或其醫藥可接受鹽。 本發明化合物可使用慣用合成方法製備,並視需要使用 標準分離及離析技術。舉例而言,式I化合物中w爲s〇2 ’ 及R2爲Η’以及Z爲0者’可製備自經由式I〗經苯 -11- 593278 五、發明說明(1〇) 并氮唑中間體與式I I I鹵烷醇於三苯基膦及偶氮二羧酸二 乙酯存在下反應而得式IV鹵烷氧基衍生物;磺酸化該式 I V衍生物而得式V之1 -磺醯基苯并氮唑化合物;以及·以 適當胺置換該式V化合物之鹵基而得所欲之式la化合物 。反應順序示於流程圖I,其中Ha 1代表鹵原子。
流程圖I
base ι^ο2α
da)
(V) 另外,式la化合物可製備自經由中間體式V與NaN3'反 應形成對應之式VI苯并氮唑氧基烷疊氮化物;以三苯基 膦還原該式VI疊氮化物而得式I化合物,其中Z爲0以 及R!、R2、R3及R4爲H(Ib);以及選擇性烷化該式lb化 合物而得式I a化合物。反應示於流程圖I I。 -12- 593278 五、發明說明(11 )
流程圖π
類似地,式I化合物中W爲S02以及Z爲S,可製備自 經由可利用適當苯并氮唑基硫醇起始物質及運用以上流程 圖I及11所示本質上相同之反應順序製備。 式I化合物中W爲S02以及Z爲NH(Ic),可製備自經由 磺酸化式V I I硝基苯并氮唑中間體而得對應之式V I Π之 1-磺醯基衍生物;還原式VIII化合物而得對應之式Ix胺 ;反應該胺與式X鹵烷基醛而得式XI鹵烷基胺衍生物; 以及以適當胺置換該式XI衍生物而得所欲之式1 c化合物 反應順序示於流程圖I I I。 593278 五、發明說明(12)
流程圖III NO〇
1) 鹼 -^ 2) ReSC^Cl
S02R6 [Η]
S〇2R6 hnr3r4
式I化合物中w爲CO以及Z爲0,可製備自經由式IV 化合物與適當異氰酸鹽或羰基或胺甲醯基鹵化物於鹼存在 下反應。運用這些及其他慣用方法可從易於取得之起始物 質製備式I化合物。 本發明之式I化合物有利運用在治療與5 - ΗΤ6受器相關 -14- 593278 五、發明說明(13 ) 或受其影響之中樞神經系統疾病’例如運動,情緒,精神 病’ δ忍知’神經退化等疾病。因此,本發明提供一方法於 有其需要之病人治療與5 - ΗΤ6受器相關或受其影響之中樞 神經系統(CNS )疾病,包括對該病人投與治療有效量之如 上敘述之式I化合物。此化合物可口服或非經腸投與或以 有效投與之任何已知常用方法對有其需要之病人給予治療 劑。 治療特定CNS疾病投與之治療有效量可依據病人欲治療 之特定狀況、大小、年齡、以及反應型態,疾病的嚴重度 ,負責醫師之判斷等等。通常口服投與之每日有效量約爲 0.01 至 1,000 mg/kg,較佳約爲 0.5 至 500 mg/kg,以及 非經腸投與之有效量約爲0. 1至100 mg/kg,較佳約爲 0.5 至 50 mg/kg。 實際進行時,本發明化合物以固體或液體形式投與,可 爲淨配方或含有一種或多種慣用醫藥可接受載劑或賦形劑 。因此本發明提供之醫藥組成物包含醫藥可接受載劑以及 有效量之如上敘述之式I化合物。 適用於本發明組成物之固體載劑包括一種或多種物質作 爲調味劑,潤滑劑,助溶劑,懸浮劑,塡裝劑,滑動劑’ 助壓劑,結合劑,藥錠崩散劑或包被膠囊物質。於粉末中 ,載劑爲細微分割固體,其混與細微分割之式I化合物。 於藥錠中,式I化合物與載劑混合,該載劑具有適當比例 之所需壓縮部份並緊壓爲預定形狀及大小。該粉末及藥錠
-15- 593278 五、發明說明(彳4) 可含有高達重量99%之式I化合物。適合於本發明組成物 之固體載劑包括磷酸鈣,硬脂酸鎂,滑石,糖,乳糖,糊 精,澱粉,明膠,纖維素,甲基纖維素,鈉羧甲基纖維素 ,聚乙烯吡咯酮,低熔點蠟,以及離子交換樹脂。 任何醫藥可接受液體載劑適用於製備溶液,懸浮液,乳 液,糖漿以及酏劑者可運用於本發明組成物中。式I化合 物分可溶解或懸浮於醫藥可接受液體載劑,例如水,有機 溶劑,或醫藥可接受油或脂肪,或其混合物。該液體載劑 可含有其他適當醫藥添加劑,例如助溶劑,乳化劑,緩衝 液,防腐劑,增甜劑,調味劑,懸浮劑,增厚劑,染料, 黏性調節劑,穩定劑,滲透調節劑等等。用於口服及非經 腸投與之液體載劑適當實例包括水(特別含有上述添加劑 ’例如纖維素衍生物,以鈉羧甲基纖維素溶液爲佳),醇( 包括單元醇及多元醇,例如二醇)或其衍生物,或油(例如 分級分離之椰子油及花生油)。用於非經腸投與載劑亦可 爲油性酯,例如油酸乙酯或肉宣蔻酸異丙酯。 本發明組成物之無菌溶液或懸浮液適用於肌肉內,腹膜 內或皮下注射。無菌溶液也可用於靜脈內投與。適用於口 服投與之本發明組成物可爲液體或固體組成物形式。 爲更淸楚了解及更明確舉例說明本發明,以下文中例舉 明確的實施例。下列實施例僅供舉例說明,在任何方面不 認定爲本發明範圍及其本質爲基礎之限制。
除非有其他說明,全部部分是指重量部分。術語HPLC -16- 593278 五、發明說明(15 ) 及NMR分別指高成形液體色層分析及核磁共振。術語 EtOAc及Et20分別指乙酸乙酯及二乙基醚。 實施例1 4 - ( 2 ·氯乙氣基1 Η -吲哚之製備 0Η
+ ΗΟ
4 -羥基吲哚(3 . 99 g,30 mmol ),2 -氯乙醇(6.03 ml, 90 mmol)及三苯基膦(23.6 g,90 mmol)於四氫呋喃之溶 液在室溫氮下處以偶氮二羧酸二乙酯(14.1 ml, 90 mmol) ,在室溫攪拌2小時並在真空中濃縮而得殘留物。添加冷 卻之二乙基醚至殘留物,沉澱固體之氧化三苯基膦並經由 過濾移除。濃縮濾液並以快速色層分析純化(矽凝膠, EtOAc/己烷:1.5/8. 5)而得油狀物。以Et20/己烷(1/10) 硏製之後得到白色固體標題化合物,4.8 g( 82%) mp 6 0 °C ,經NMR及質譜分析確認。 實施例2 4 -_ ( 2 -氯乙氧基1 -(苯磺醯基丨η -吲哚之製備
-17- 593278 五、發明說明(16 ) 4-(2-氯乙氧基)-1Η-吲哚(3.4 g,17.4 mmol)於四氫呋 喃之擾拌彳谷液在室溫氣下處以氫化鈉(6 0 %於礦物油中, 1 · 04 g,26 · 1 mmol ) ’攪拌30分鐘,處以苯磺醯氯 (3 . 4ml,26 . 1 mmol ),在室溫攪拌隔夜,然後處以飽和 NaHC03及EtOAc。分開所得相。以EtOAc萃取水相,合倂 之有機相連續經水及飽和NaCl淸洗,經MgS04乾燥並在真 空中濃縮而得殘留物。殘留物經快速色層分析純化(矽凝 膠,EtOAc/己烷:2/8)而得灰白色固體標題化合物, 4.94g(86%) mp 8 5 - 87°C,經NMR及質譜分析確認。 實施例3 2-丨「1-(苯磺醯基)_1H -明丨哚-4 -某1氣基)疊氮乙基之製
4 - ( 2 -氯乙氧基)· 1 -(苯磺醯基)-1 Η -吲哚(3 . 3 5 g , lOmmol)及疊氮化鈉(1·95 g,30 mmol)於無水二甲基甲醯 胺之懸浮液,在氮下6(TC攪拌20小時,倒入水中並經乙 酸乙酯萃取。合倂萃取物,連續經1N HC1,水及飽和 NaCl淸洗,經MgS04乾燥並在真空中濃縮而得灰白色固體 標題產物,3.3 96%),經NMR及質譜分析確認。 實施例4 -18- 593278 五、發明說明(17) 2 - { f 1 -(本石貝酿基)-1 Η - D弓丨口朵-4 -基1氣基)乙胺之製備
ο^\^νη2
2 - {[ 1 :(苯磺醯基)-1 Η -吲哚-4 -基]氧基)疊氮乙基(3 . 3 g, 9.6 mmol)及三苯基膦(3.67 g,14 mmol)於四氫呋喃及水 之混合物在室溫氮下攪拌2 4小時並過濾。在真空中濃縮 濾液且所得殘留物經快速色層分析純化(矽凝膠, Et〇Ac/MeOH/HN4〇H : 8.5/1 .5/0. 05)而得灰白色固體標題 化合物,2.54 g(80%) mp 7卜73°C,經NMR及質譜分析確 認。 實施例5 2 - (「1 -(茏磺醯基)-1 Η -吲哚-4 -基1氧基丨乙胺鹽酸鹽之 製備
2 - { [ 1 -(苯磺醯基)· 1 Η -吲哚-4 -基]氧基}乙胺(0 · 20 g , 0.63 mmol)於乙酸乙酯之溶液處以HC1於二乙基醚(1M, 0 . 7 m 1 )並過濾。在真空中乾燥濾塊而得粉紅色固體標題 產物,0.21 g,mp 1 9 8 - 200°C,經NMR及質譜分析確認。 -19- 593278 五、發明說明(18) -丨「1 -(苯磺醯某)-1 Η -吲哚-4 -基1氣基1 Z甚、|JC| , ll^L喃-4 -胺鹽酸_夕製備
2 -丨[1 -(苯磺醯基)-1 Η -吲哚-4 -基]氧基}乙胺(〇 · 3 1 6 g, 1 .0 mmol ),四氫-4H-吡喃-4·酮(0.09 ml,1 ·00 _〇1 )及 二乙醯氧基硼院鈉(0.312 g,1.4 mmol)於1,2 -二氯乙院 之混合物在室溫處以醋酸(0 · 06 m 1 ),氮下攪拌1 8小時, 以濃ΗΝ40Η水溶液淬熄,並經亞甲基二氯及水稀釋。分開 水層並經亞甲基二氯萃取。合倂有機層及萃取物,經飽和 NaCl淸洗,經Na2S04乾燥並在真空中濃縮。所得殘留物 經快速色層分析純化(矽凝膠,EtOAc/MeOH/HN4OH : 9/1/0.05)而得淸澈油狀之游離胺標題產物,0.36 g(90%) 〇 於HC1及乙酸乙酯中製備HC1鹽而得灰白色固體標題產 物,mp 229 -23(TC,經NMR及質譜分析確認。 實施例7a及7b (a)N,N-lC (3 -甲氧平基)-Ν-(2-(Π-(苯磺醯基)-1Η -口弓丨 哚-4 -基1氧基)乙胺以及(b)N-(3-甲氧;基)-丨「1-( -20- 593278
五、發明說明(19)
乙胺鹽酸鹽之製備
0>) - . -· ·..... 2 - { [ 1 -(苯磺醯基)-1 Η -吲哚-4 -基]氧基}乙胺(0 · 3 1 6 g, 1 - 〇 _〇1 ) ’間-茴香醛(〇. 12 ml , 1 ·〇 mmol )及三乙醯氧 基硕 1丨完鈉(0.312 g,1.4 mmol)於1,2-二氯乙烷之混合物 在室溫處以醋酸(0 . 0 6 m 1 ),氮下攪拌1 8小時,以濃 ΗΝβΗ水溶液淬熄,並經亞甲基二氯及水稀釋。分開水層 並經亞甲基二氯萃取。合倂有機層及萃取物,以飽和NaC1 淸洗’經Na2S04乾燥並在真空中濃縮得到殘留物。殘留物 經快速色層分析純化(矽凝膠,EtOAc/M.eOH/HN4OH ·· 9.5/0.5/0.05)而得淸澈油狀之7a之游離胺0.20 g(36%) -21 - 593278 五、發明說明(2〇) ,以及淸澈油狀之7 b之游離胺0 . 1 3 5 g ( 3 1 % )。 於乙酸乙酯及無水HC1於乙醚中製備7a的HC1鹽而得 白色固體之7a標題產物,mp 1 94 - 1 96°C,經NMR及質譜 分析確認。 於乙酸乙酯及無水HC1於乙醚中製備7b的HC1鹽而得 白色固體之7b標題產物,mp 1 89 - 1 90°C,經NMR及質譜 分析確認。 實施例8 N , N -二甲基-N - ( 2 - ί「1 -(苯磺醯基)· 1 Η -吲哚-4 -基1氧某| 乙胺鹽酸鹽之製備
2 - {[ 1-(苯磺醯基)-1 Η -吲哚-4 -基]氧基丨乙胺(0 . 3 1 6 g, 1.0 _〇1),甲醛(0.16 ml,2.0 _〇 1 )及三乙醯氧基硼烷 鈉( 0.446 g, 2.0 mmol)於1,2-二氯乙院之混合物在室溫 氮下攪拌48小時,以濃HN40H水溶液淬熄,並經亞甲基 二氯稀釋。分開水層並經亞甲基二氯萃取。合倂有機層及 萃取物,以飽和NaCl淸洗,經Na2S04乾燥並在真空中濃 縮。所得殘留物經快速色層分析純化(矽凝膠, EtOAc/Me〇H/HN4OH : 9 . 5/0 · 5/0 · 03 )而得白色固體之游離 胺 0 . 21 5 g(36%)。 -22- 593278 五、發明說明(21 ) 於乙酸乙酯及無水HC 1於乙醚中製備HC 1鹽而得白色固 體之標題產物,mp 14〇-142°C,經NMR及質譜分析確認。 實施例Q 4_ - ( 2 -嗎福琳-4 -某乙氧基)-1 -(本石黃酿基)-1 Η _ P弓丨口朵鹽西奢 i之製備 0^/Nv_/0
4 -(2 -氛乙氧基)·1-苯磺酿基- ΙΗ-卩引卩朵(0.50,1.5 mmol) 及嗎福啉(1·30 ml, 15 mmol)於二甲基甲醯胺(DMF)之混 合物在80°C氮下攪拌1 8小時,冷卻至室溫,以水淬熄並 以二乙基醚萃取。合倂乙醚萃取物,並以飽和氯化鈉淸洗 ,經MgS04乾燥並在真空中濃縮。所得殘留物經快速色層 分析純化(矽凝膠,EtOAc/MeOH/HN4OH:9.7/0.5/0.05)而 得白色固體之游離胺〇 . 48 g( 83%)。 於乙酸乙酯及HC1中製備HC1鹽而得白色固體之標題產 物,mp 1 40 - 1 42°C,經NMR及質譜分析確認。 實施例10 1-(苯磺醯基)( 2 -六氫吡卩宏-]_基乙氧基)_ 1 η -吲哚鹽 酸鹽之製備 -23- 593278 五、發明說明(22 )
4-(2 -氯乙氧基)-1-苯磺醯基-1H-吲哚(0.323,1. 0_〇1 ) 及六氫吡啶(0.99 ml,10 mmol)於二甲基甲醯胺(DMF)之 混合物在80°C氮下攪拌18小時,冷卻至室溫,以水淬熄 並以二乙基醚萃取。合倂乙醚萃取物,並以飽和氯化鈉淸 洗,經MgS04乾燥並在真空中濃縮。所得殘留物經快速色 層分析純化(矽凝膠,EtOAc/MeOH/HN4OH: 9.7/0.5/0.05) 而得淡黃色油狀之游離胺0 . 34 g( 88%)。 於乙酸乙酯及HC1中製備HC1鹽而得淡黃色固體之標題 產物,mp 131-133°C,經NMR及質譜分析確認。 實施例1 1 4,(2 -氯乙氣基)·1Η_ 口弓[口坐之製備 1
coch3
1-乙醒基- 4- (2 -氯乙氧基)-1Η -吲哗(1.50 g, 6.3 mmol) 於甲醇之攪拌溶液在室溫處以氫氯酸(6.3 ml, 1.0 M HC1 於Et20,6.3 mmol),在651:氮下加熱18小時,冷卻至 室溫並在真空中濃縮。以IN NaOH( 6 . 0 ml )中和所得殘留 -24- 593278 五、發明說明(23 ) 物,並以水及乙酸乙酯稀釋。分開所得相並以乙酸乙酯萃 取水相。合倂之有機相連續經水及飽和NaC 1淸洗,經 Na2S04乾燥並在真空中濃縮而得黃色固體標題產物(1 . 2 g) ,經NMR及質譜分析確認。 實施例1 2 4 - ( 2 -氯乙氯某)-1 -(苯磺醯某1 Η -吲唑之製備 〇〜C1
4-(2-氯乙氧基)-1Η-吲唑(1.1 g,5.59 mmol)於四氫呋 喃之攪拌溶液在室溫氮下處以NaH( 0.3 3 5 g, 60%於礦物油 中,8.39 mmol),攪泮30分鐘,處以苯擴醯氯(0.86 ml, 6 . 71 mmol ),在室溫攪拌18小時,以水淬熄並經乙酸乙 酯稀釋。分開所得相,有機相經水及鹽水淸洗,經MgS04 乾燥並在真空中濃縮。所得殘留物經快速色層分析純化( 矽凝膠,EtOAc/己烷:3/7)而得白色固體標題產物,1 . 75 g(93%) mp 1 02 - 1 04°C,經NMR及質譜分析確認。 實施例13 1 -苯磺醯某卜4 -「1 -六氣吡啶)乙氧某1 - 1 Η -吲晔鹽酸鹽 之製備 -25- 593278
4-(2 -氯乙氧基)-iH -口引口坐.(0.337 g, 1.0 mmol)及六氫 吡啶(0.20 ml, 2.0 mmol)於N,N-二甲基甲醯胺(DMF)之混 合物在80°C氮下攪拌18小時,冷卻,以冰水淬熄並經乙 酸乙酯稀釋。分開所得相。以乙酸乙酯萃取水相。合倂有 機相,經水及飽和NaCl淸洗,經MgS04乾燥並在真空中濃 縮而得黃色油狀殘留物。殘留物溶解於乙酸乙酯,處以1 Μ HC1(1 ml, 1Μ HC1於Et20)並過濾。在真空中乾燥濾塊而 得灰白色固體標題產物,3 54 mg,mp 87 - 89°C,經NMR及 質譜分析確認。 實施例1 4 9,-丨「1 -苹碏醯某1 Η -吲_ - 4 -某1氧基}乙胺鹽酸鹽之製 l)NaN3 〇^^^碼.HC1
4-(2·氯乙氧基)-1H_吲唑(〇·6ό g,1.96 mmol)及疊氮 化鈉(0 . 3 8 2 g,5 · 8 7 m m ο 1 )於N , N -二甲基甲醯胺之懸浮液 在6 0 °C氮下擾伴2 4小時’冷卻’以1 N H C 1午熄並經乙酸 -26- 593278 五、發明說明(25 ) 乙酯萃取。合倂之萃取物經水及飽和NaCl淸洗,經 Na2S04乾燥並在真空中濃縮而得黃色固體殘留物。殘留物 溶解於四氫呋·喃,處以三苯基膦(0.771 g,2.94 mmol)及 水,在室溫攪拌1 8小時並在真空中濃縮。所得殘留物經 快速色層分析純化(矽凝膠,EtOAc/2M NH3於MeOH : 90 / 10) 而得膠狀游離胺(0 . 4 1 g )。膠狀物溶解於乙酸乙酯,處以 於乙醚之無水HC 1。過濾反應混合物並風乾濾塊而得白色 固體標題產物,mp 20 1 - 203 °C,經NMR及質譜分析確認。 實施例1 5及1 6 i v(芳基磺醯基)-4 -「2 - ( 1-六氣吡啶某)乙氧基1 - 1 Η -吲 π坐鹽酸鹽之製備
使用本質上與實施例1 1,1 2及1 3所述之相同程序並運 用適當的芳基擴醯氯製備表I中所示化合物,並經NMR及 質譜分析確認。 -27- 593278
五、發明說明(26 )
表I
實施例號碼 15 16 < 4-硝苯基 4-氟苯基 • HC1 Mp M+H °C 117-119 431 122(分解) 404 复施例17 N ·( 2 -丨Π -(苯磺醯基)-1 Η -吲唑-4 -某1氧基)乙基)四氫二· 2Η-吡喃-4-胺之製備
2 - { [ 1-(苯磺醯基)-1Η -吲唑-4-基]氧基}乙胺(〇· 10 g, 0.31 mmol),四氫-4H-吡喃-4-酮(0.03 ml, 0.31 mmol) 及三乙醯氧基硼烷鈉(〇·〇97 g,0.43 mmol)於1,2-二氯乙 烷之懸浮液在室溫處以醋酸(〇 · 〇3 m 1 ),氮下在室溫攪拌 18小時,以IN NaOH(2 ml )淬熄,並以水及4 : 1之亞甲基 二氯:異丙醇之混合物稀釋。合倂有機相,以水及鹽水淸 -28- 593278 五、發明說明(27 ) 洗,經Na2S04乾燥並在真空中濃縮。所得殘留物溶解於 4 : 1之乙酸乙酯··異丙醇之混合物,處以於乙醚之無水 HC1並過濾而得白色固體標題產物,mp 173-175°C ’經 NMR及質譜分析確認。 實施例1 8 N - ( 2 - {「1 -(苯碏醯基)-1 Η -吲唑-4 -基1氯基)_乙基)四氫-2Η -噻晚喃-4 -胺_酪鹽之製備
筒用本質上與實施例1 7所述之相同程序並以四氫-4Η -_吡喃-4 -酮取代作爲反應物而得白色固體標題產物,mp 1 82 - 1 84°C,經NMR及質譜分析確認。 實施例1 9 li-.( 1,_42 - ( 1二六氯吡啶某)乙氣基1 - ! η -吲唑-1 -基1磺醯 某)苯胺之製備
-29- 593278 五、發明說明(28 ) 1 - [( 4 -硝苯基)磺醯基]-4 - [ 2 - ( 1 -六氫吡啶基)乙氧基 ]1H-吲唑(0.39 g,0.91 mmol)於甲醇之攪拌溶液處以蘭 尼鎳(Raney Ni ckel ),隨後處以聯胺(〇 . 2 ml,6 . 3 mmol ) ,在〇 °C攪拌2小時並倒出。以3 : 7之甲醇:亞甲基二氯 混合物淸洗催化劑。合倂淸洗液及上淸液,並在真空中濃 縮。所得殘留物經快速色層分析純化(砂凝膠,E t 0 A c / 2 Μ ΝΗ3於甲醇8 : 2)而得白色固體標題產物,〇. 15 g,mp 1 49 - 1 50°C (分解),經NMR及質譜分析確認。 實施例20 測試化合物之5 - HT6結合親和力之比較値 測試化合物於5-羥色胺5-ΗΤ6受器之親和力以下列方法 評估。採集表現人類經選殖之5-ΗΤ6受器的Hela細胞培 養,然後以低速(1,〇〇〇 X g)離心分鐘以移除培養液 。採集之細胞懸浮於一半體積之新鮮生理磷酸鹽緩衝鹽液 ,並以相同速度再離心。此操作再重複一次。然後收集之 細胞於 10 體積之 50 mM Tris.HCl(pH 7.4)以及 0.5 mM EDTA中均質化。均質物以40,000 x g離心30分鐘並收集 沉澱物。所得小片(?6 1161)再懸浮於1〇體積之1^3.1^1 緩衝液,並以相同速度再離心。最終之小片懸浮於小體積 之Tns.HCl緩衝液且組織蛋白內容物於分裝之10-25微 升(// 1 )體積中測定。根據Low r y等人所述之方法(k Biol , Chem.,193:26 5 ( 1 95 1 ))測定蛋白質,使用牛血淸 白蛋白(BS A )爲標準。懸浮之細胞膜體積調整濃度爲每毫
-30- 593278 五、發明說明(29 ) 升懸浮液含1 . 0毫克組織蛋白。製備膜懸浮液(1 0倍濃縮) 分裝爲1.0 ml體積並保存在-70°C直到用於後續之結合實 驗。 ·
結合測量於96井微滴定板格式中進行,總體積200 // 1 。對每井加入下列混合物:80 . 0 μ 1培育緩衝液,該緩衝 液組成爲50mMTns.HC緩衝液(pH7.4)以及含有10.◦mM MgCl2 及 0.5 EDTA 及 20 // 1 之 3.0 ηΜ 之[3!·!]-LSD(S.A·, 86.0 Ci/mmol,獲自 Amersham Life Science) 。在人類5-HT6受器之[3H]-LSD解離常數KD爲2.9 nM, 其係測定自與增加濃度之[3H ] - LSD飽和結合。反應起始係 經由最終添加1 00.0 // 1組織懸浮液。非專一性結合係在 1 0 . 0 // Μ甲硫詩平(M e t h i 〇 t h e p i η )存在下測量之。測試化 合物以20.0// 1體積添加。
反應在室溫於黑暗中進行120分鐘,其間已結合之配體 -受格複合物在96井單一灑器及Packard® Filtermate 1 9 6 H a r v e s t濾除。風乾被攔截在濾器盤上之已結合複合 物,以及在每一淺井添加40/z 1 Microscint-20問爍劑之 後於Packard TopCount®裝置六組光電信增器偵檢器測量 放射性。以熱封閉單一濾器平板,於3 1 · 0%氚效力之 Packard TopCount®內計數。 對5 -HT6受器之專一性結合定義爲全部放射性結合量少 於存在1 0 · 0 // Μ未標識甲硫詩平之結合量。不同濃度測試 化合物存在時之結合,係以不含測試化合物時專一性結合 -31 - 593278 五、發明說明(3〇) 之百分比表示。然後這些結果以結合對數%( log%)對測試 化合物之對數濃度作圖。數據點之非線性回歸分析是經由 電腦以Prism®程式輔助,產生測試化合物的IC5()及Ki値 (9 5 %信賴限制)。作圖數據點之線性回歸線,從其決定 IC5Q値且L値經由下列方程式計算測定: K1 = IC5〇/(1+L/Kd) 其中L爲使用之放射性配體濃度,以及KD爲配體對受器 之解離常數,皆以nM表示。 使用此分析測定下列Ki値,並與已知用於證明5 -HT6 受器結合之代表性化合物所得之値比較。數據如下表I I 所示。 表II 測試化合物(實施例編號) 5-HT6 結合 Ki (nM) 5 2.0 6 6.0 7a 94% @ 1 // Μ* 7b 95% @ 1 //Μ* 8 4.0 9 92% @ 1 /i Μ* 10 7.0 13 2.0 14 1.0 15 76% @ 1 n Μ* -32- 593278 五、發明說明(31 ) 16 19.0 17 6.0 18 11.0 19 1.0 比較實施例 5-HT6 結合 Ki(nM) 克羅力平(Clozapine) 6.0 羅薩平(Loxapine) 41.4 溴克立丁(Bromocriptin) 23.0 甲硫詩平(Me thi othepin) 8.3 面絲林(Mianserin) 44.2 歐拉立平(Olanzepine) 19.5 *在1 // Μ濃度之抑制% 從以上結果看出本發明化合物對5 -羥色胺5 - ΗΤ6受器展 現高度親和力。 -33-
Claims (1)
- I593278 「、申請專利範圍 。-一〜· '.一 — - …一·_ 第90 1 32299號「作爲5-羥基色胺-6配體之1-芳·•或1-烷 基磺醯基苯并氮唑衍生物」專利案 (92年12月修正) 六、申請專利範圍 1. 一種式I之化合物, 平4其中 W爲s〇2 ; X 爲 CR7 ; Y爲CR8或N ; Z爲〇, I及R2各自獨立爲Η ; η爲整數2 ; 1及R4各自獨立爲Η, CVC6烷基含1個選自〇或 S雜原子之C5-C7環雜烷基,可經烷氧基取代之 苄基,或R3及R4可與其附著的原子共同形成3-至6-員環,其可含有額外一雜原子〇 ; 'R5 爲 Η ; πι爲整數3 ; 593278 t、申請專利範圍 r6爲可經胺基、硝基或鹵素取代之苯基; 1及R8各自獨立爲Η ; 或其醫藥可接受鹽。 2. 如申請專利範圍第1項之化合物,其中W爲S〇2。 3. 如申請專利範圍第1項之化合物,其中Z爲〇。 4. 如申請專利範圍第1項之化合物,其中η爲2。 5. 如申請專利範圍第1項之化合物,其中R6爲可經胺基 、硝基或鹵素取代之苯基。 6. 如申請專利範圍第1項之化合物,其中X爲CR7,以及 R5及R7爲Η。 7. 如申請專利範圍第1項之化合物,其中&及R2爲Η,Ζ 爲0,以及η爲2。 8. 如申請專利範圍第1項之化合物,其中W爲S02,Ζ爲 ◦,以及R3及R4可與其附著的原子共同形成選擇性經 取代之5 -至6 -員環,其選擇性含有一 0原子。 9. 如申請專利範圍第1項之化合物,其係選自: 2 - {[ 1 -(苯磺醯基)-1 Η -吲哚-4 -基]氧基}乙胺; 4 - ( 2 -嗎福啉-4 -基乙氧基)-1 -(苯磺醯基)-1Η -吲哚; 1 -(苯磺醯基)-4 - ( 2 -六氫吡啶-1 -基乙氧基)-1 Η -吲 哚; Ν - ( 2 - { [ 1-(苯磺醯基)-1Η -吲哚-4 -基]氧基}乙基卜 四氫- 2Η-吡喃-4-胺; Ν,Ν -貳(3 -甲氧苄基)-2 - { [ 1 -(苯磺醯基)· 1 Η -吲哚- 593278 六、申請專利範圍 4 -基]氧基}乙胺; N - ( 3 -甲氧;基)· 2 _ {[丨_ (苯磺醯基)_丨H _吲哚-4 _基] 氧基}乙胺; N,N -二甲基_2-{[1_(苯磺醯基)_1H_吲哚-4_基]氧基} 乙胺; I (苯磺醯基)-4 - [ 2 - ( 1 -六氫吡啶基)乙氧基]-1 Η -吲 唑; 2· { [ 1 -(苯磺醯基)_ 1Η_吲唑-4_基]氧基}乙胺; Ν-(2-{[ΐ-(苯磺醯基)·1Η_吲唑-4_基]氧基}乙基)_ 四氫-2 Η - Ift喃-4 -胺; Ν-(2-{[1-(苯磺醯基卜1H_吲唑-4-基]氧基}乙基)-四氫- 2H-噻吡喃-4-胺; 1 - [( 4 -硝苯基)磺醯基]_ 4 - [ 2 - ( 1-六氫吡D定基)乙氧 基]-1Η -吲唑; 1-[(4 -氟苯基)磺醯基]-4-[2-(1-六氫吡啶基)乙氧 基]-1 Η -吲唑; 4 -({ 4 - [ 2 - ( 1 -六氫吡啶基)乙氧基]-1 Η -吲唑-卜基} 磺醯基)苯胺; 或其醫藥可接受鹽。 10. —種用於有其需要之病人治療5-ΗΤ6受器(5-ΗΤ6 r e c ep t ο 1:)相關或受其影響之中樞神經系統疾病之醫藥 組成物,包括治療有效量之式I化合物爲活性成分, 以及醫藥可接受載劑: 593278 t、申請專利範圍其中 w爲s〇2 ; X 爲 CR7 ; Y爲CR8或N ; z爲〇; h及R2各自獨立爲Η ; η爲整數2 ; 1及1各自獨立爲Η, CVC6烷基,含1個選自〇 或S雜原子之(:5-(:7環雜烷基,可經Ci-Q烷氧基取代 之苄基,或心及R4可與其附著的原子共同形成3-至 6 -員環,其可含有額外一雜原子〇; R5 爲 Η ; m爲整數3 ; Re爲可經胺基、硝基或鹵素取代之苯基; 1及1^8各自獨立爲[1; 或其醫藥可接受鹽。 593278 六、申請專利範圍 11. 如申請專利範圍第1 〇項之醫藥組成物,其中該疾病爲 運動神經疾病,焦慮疾病或認知疾病。 12. 如申請專利範圍第1 0項之醫藥組成物,其中該疾病爲 精神分裂症或憂鬱。 13. 如申請專利範圍第1 1項之醫藥組成物,其中該認知疾 病爲注意力不足症。 14. 如申請專利範圍第1 1項之醫藥組成物,其中該認知疾 病爲阿兹海默症(A 1 z h e i m e r ’ s d i s e a s e )或帕金森氏症 (Parkinson’s disease) o 15. 如申請專利範圍第1 〇項之醫藥組成物,其中W爲S02 ,乙爲〇,以及η爲2。 16. 如申請專利範圍第1 〇項之醫藥組成物,其中r6爲可經 胺基、硝基或鹵素取代之苯基。 17. 如申請專利範圍第1〇項之醫藥組成物,其中X爲CR7 ’以及I、R2、R5及R7爲Η。 18·如申請專利範圍第1 0項之醫藥組成物,其中式I化合 物係選自: 2 - {[ 1 -(苯磺醯基)-1 Η -吲哚-4 -基]氧基丨乙胺; 4 - ( 2 -嗎福啉-4 -基乙氧基)-1 -(苯磺醯基)-1 Η -吲哚; 1 -(苯磺醯基)-4 - ( 2 -六氫吡啶-1 -基乙氧基)-1 Η -吲 哚; Ν - ( 2 - { [ 1 -(苯磺醯基)-1 Η -吲哚-心基]氧基}乙基卜 四氫- 2Η-吡喃-4-胺; 593278 t、申請專利範圍 N,N -貳(3 -甲氧苄基)-2 - {[ 1 -(苯磺醯基)-1 Η -吲哚-4 -基]氣基)乙胺, Ν - ( 3 -甲氧苄基)-2 - {[ 1 -(苯磺醯基)-1 Η -吲哚-4 -基] 氧基}乙胺, Ν,Ν -二甲基-2 - {[ 1 -(苯磺醯基)-1 Η -吲哚-4 -基]氧基) 乙胺; 1 -(苯磺醯基)-4 - [ 2 - ( 1 -六氫吡啶基)乙氧基]-1 Η -吲 唑; 2 - { [ 1 -(苯磺醯基)-1Η-吲唑-4-基]氧基)乙胺; Ν-(2-{[1-(苯磺醯基)-1Η-吲唑-4-基]氧基丨乙基)- 四氫- 2Η-吡喃-4-胺; 1(2-{[1-(苯磺醯基)-111-吲唑-4-基]氧基}乙基)-四氣-2 Η -瞎壯喃-4 -月女, 1 - [( 4 -硝苯基)磺醯基]-4 - [ 2 - ( 1 -六氫吡啶基)乙氧 基]-1 Η -吲唑; 1-[(4 -氟苯基)磺醯基]-4-[2-(1-六氫吡啶基)乙氧 基]_ 1 Η -吲唑; 4 - ({ 4 - [ 2 - ( 1 -六氫吡啶基)乙氧基]-1 Η -吲唑-1 -基} 擴醯基)苯胺; 或其醫藥可接受鹽。 19. 一種式I a化合物之製備方法, 593278 ^、申請專利範圍 — (CR〗H一 ZX 爲 CR7 ; Y爲CR8或N ; Z爲〇; 1及1^2各自獨立爲Η ; η爲整數2 ; R3及R4各自獨立爲Η, CVC6烷基,含1個選自〇 或S雜原子之C5-C7環雜烷基,可經烷氧基取代 之苄基,或1及R4可與其附著的原子共同形成3-至 6 -員環,其可含有額外一雜原子0 ; R5 爲 Η ; m爲整數3 ; R6爲可經胺基、硝基或鹵素取代之苯基; 該方法包括令式V’化合物 Hal— (CR】HZ(V,) 593278 六、申請專利範圍 (其中 Hal 爲 Cl,Br 或 I;以及 、R2、1及R6如上述之定義) 與胺HNR3R4(其中R3& R4如上述定義)可於非水溶性 有機溶劑存在下反應而得所欲之式I a化合物。 20.如申請專利範圍第1 9項之製備方法,其中非水溶性有 機溶劑爲四氫呋喃。
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