TWI823573B - 用於製備1,5-苯并噻氮呯化合物之方法 - Google Patents
用於製備1,5-苯并噻氮呯化合物之方法 Download PDFInfo
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- TWI823573B TWI823573B TW111135239A TW111135239A TWI823573B TW I823573 B TWI823573 B TW I823573B TW 111135239 A TW111135239 A TW 111135239A TW 111135239 A TW111135239 A TW 111135239A TW I823573 B TWI823573 B TW I823573B
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- Prior art keywords
- eloxiba
- formula
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- mixture
- acid
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- 238000000034 method Methods 0.000 title claims abstract description 41
- 238000002360 preparation method Methods 0.000 title abstract description 19
- 230000008569 process Effects 0.000 title abstract description 6
- KJFRSZASZNLCDF-UHFFFAOYSA-N 1,5-benzothiazepine Chemical class S1C=CC=NC2=CC=CC=C12 KJFRSZASZNLCDF-UHFFFAOYSA-N 0.000 title abstract description 5
- XFLQIRAKKLNXRQ-UUWRZZSWSA-N elobixibat Chemical compound C12=CC(SC)=C(OCC(=O)N[C@@H](C(=O)NCC(O)=O)C=3C=CC=CC=3)C=C2S(=O)(=O)CC(CCCC)(CCCC)CN1C1=CC=CC=C1 XFLQIRAKKLNXRQ-UUWRZZSWSA-N 0.000 claims abstract description 5
- 229950000820 elobixibat Drugs 0.000 claims abstract description 5
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- C07D281/00—Heterocyclic compounds containing rings of more than six members having one nitrogen atom and one sulfur atom as the only ring hetero atoms
- C07D281/02—Seven-membered rings
- C07D281/04—Seven-membered rings having the hetero atoms in positions 1 and 4
- C07D281/08—Seven-membered rings having the hetero atoms in positions 1 and 4 condensed with carbocyclic rings or ring systems
- C07D281/10—Seven-membered rings having the hetero atoms in positions 1 and 4 condensed with carbocyclic rings or ring systems condensed with one six-membered ring
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Abstract
本發明係關於一種用於製備某些1,5-苯并噻氮呯化合物之方法,且尤其係關於一種用於製備依洛昔巴(elobixibat)之方法。該方法可在溫和及安全條件下進行且可用於以工業規模製備依洛昔巴。本發明亦關於一種用於製備依洛昔巴之結晶單水合物之方法。
Description
本發明係關於一種用於製備某些1,5-苯并噻氮呯化合物之方法,且尤其係關於一種用於製備依洛昔巴(elobixibat)之方法。該方法可在溫和及安全條件下進行且可用於以工業規模製備依洛昔巴。本發明亦關於一種用於製備依洛昔巴之結晶單水合物之方法。
依洛昔巴(1,1-二側氧基-3,3-二丁基-5-苯基-7-甲硫基-8-(N-{(R)-1'-苯基-1'-[N'-(羧甲基)胺甲醯基]甲基}胺甲醯基甲氧基)-2,3,4,5-四氫-1,5-苯并噻氮呯)為一種迴腸膽汁酸轉運體(IBAT)抑制劑且可用於治療或預防血脂異常(WO 02/50051),便秘(WO 2004/089350)及諸如膽汁鬱積性肝病及非酒精性脂肪變性肝炎之肝病(WO 2012/064266)。
迴腸膽汁酸轉運體位於小腸中,尤其位於迴腸中,且作為被稱為腸肝循環之過程之一部分,負責調節膽汁酸自小腸至肝臟之攝取。通常,大約95%之膽汁酸經由IBAT再循環至肝臟,剩餘的5%分泌至結腸。藉由抑制膽汁酸自小腸再吸收至肝臟,增大量之膽汁酸分泌至結腸。結腸中之膽汁酸濃度較高則引起電解質及水之分泌增加,使得大便軟化及大腸之運動性較高。作為迴腸膽汁酸轉運體之抑制劑,依洛昔巴可因此用於治療便秘。
依洛昔巴及數種相關1,5-苯并噻氮呯化合物之製備揭示於WO 02/50051中。依洛昔巴之製備包含大量連續步驟,且涉及若干自環境或安全角度來看較不理想之試劑。純化最終產物(依洛昔巴)及若干中間產物需要製備層析法,其非常適用於小規模合成但較不適用於工業規模生產。
依洛昔巴之若干穩定晶體改性已揭示於WO 2014/174066及WO 2016/062848中,包括依洛昔巴之晶體改性IV。然而,用於獲得此等文獻中所描述之水合物及無水物形式之方法未經優化以用於以工業規模生產。
因此,需要一種用於製備依洛昔巴或其結晶單水合物(諸如晶體改性IV)之改良方法。此方法應使得有可能以工業規模且以比先前所描述之方法更高的產率及更高的純度生產依洛昔巴。
本發明提供一種製備依洛昔巴及緊密相關之1,5-苯并噻氮呯化合物之改良方法。
在第一態樣中,本發明係關於一種方法,其用於製備式(I)化合物:
或其醫藥學上可接受之鹽,
其中
R
1及R
2各自獨立地為C
1-4烷基;
R
3為C
1-4烷基;
R
4係選自由氫、羥基、鹵素、硝基、氰基及C
1-4烷基組成之群;且
R
5係選自由氫、羥基、鹵素、硝基、氰基及C
1-4烷基組成之群;
其包含使式(II)化合物:
其中R
1至R
4如上文所定義,
與式(III)化合物:
其中
R
5如上文所定義;且
R
6為適合之保護基;
反應以獲得式(IV)化合物:
且去保護該式(IV)化合物以獲得式(I)化合物。
如本文所用,術語「鹵素」係指氟、氯、溴及碘。
如本文所用,術語「C
1-4烷基」係指具有1至4個碳原子之直鏈或分支鏈烷基。C
1-4烷基之實例包括甲基、乙基、正丙基、異丙基、正丁基、異丁基、第二丁基及第三丁基。
如本文所用,術語「C
1-4鹵烷基」係指如上文所定義之C
1-4烷基,但其中至少一個氫原子已經鹵素置換。C
1-4鹵烷基之實例包括氟甲基、二氟甲基、三氟甲基。
如本文所用,術語「保護基」係指保護潛在反應性官能基免於不期望的化學轉化之暫時性取代基。此等保護基之實例包括羧酸之酯,諸如羧酸之烷基酯及矽烷基酯。已充分綜述保護基化學物質之領域;參見例如Wuts,P.G.M.及Greene, T.W.,
Greene ' s Protective Groups in Organic Synthesis,第四版;John Wiley & Sons,Hoboken,2006。
在一較佳實施例中,本發明係關於一種用於製備式(I)化合物之方法,其中R
1及R
2各自為正丁基。在另一較佳實施例中,本發明係關於一種用於製備式(I)化合物之方法,其中R
3為甲基。在另一較佳實施例中,本發明係關於一種用於製備式(I)化合物之方法,其中R
4為氫。在又一較佳實施例中,本發明係關於一種用於製備式(I)化合物之方法,其中R
5為氫。在一最佳實施例中,本發明係關於一種用於製備式(I)化合物之方法,其中R
1及R
2各自為正丁基,R
3為甲基且R
4及R
5各自為氫(亦即,依洛昔巴)。
在所主張之方法之第一步驟中,較佳在偶合劑及適合之鹼存在下使式(II)之羧酸與式(III)之
O-保護肽進行縮合反應。
式(III)化合物較佳地相對式(II)化合物略微過量使用,更佳地以相對於式(II)化合物約1.0至約1.3當量之量使用,最佳地以相對於式(II)化合物約1.2當量之量使用。
式(III)中之R
6為適合之保護基,更佳為可在酸性條件下移除之保護基。在一較佳實施例中,R
6係選自由C
1-4烷基及三取代矽烷基組成之群。更佳地,R
6為第三丁基或三甲基矽烷基,且最佳為第三丁基。
適合之偶合劑之實例包括碳化二亞胺,諸如二環己基碳化二亞胺及二異丙基碳化二亞胺;N,N'-羰基二咪唑;O-(苯并三唑-1-基)-
N,N,N ' ,N '-四甲基四氟硼酸鹽(TBTU);及O-(苯并三唑-1-基)-
N,
N,N',N'-四甲基六氟磷酸鹽(HBTU)。在一較佳實施例中,偶合劑為碳化二亞胺或O-(苯并三唑-1-基)-
N,N,N',N'-四甲基四氟硼酸鹽,且最佳為O-(苯并三唑-1-基)-
N,N,N',N'-四甲基四氟硼酸鹽。
偶合劑可相對於式(II)化合物略微過量使用,最佳地以相對於式(II)化合物約1.0至約1.3當量之量使用。
適合之鹼之實例包括三級烷基胺,諸如三乙胺;及芳族胺,諸如吡啶及2,6-二甲吡啶。在一較佳實施例中,鹼為2,6-二甲吡啶。
鹼較佳地相對於式(II)化合物過量使用,較佳地以相對於式(II)化合物約1.5至約4.0當量之量,更佳地以相對於式(II)化合物約2.5至3.5當量之量。
用於縮合反應之適合溶劑包括醚,諸如四氫呋喃、二噁烷、環戊基甲醚及1,2-二甲氧乙烷;酯,諸如乙酸乙酯及乙酸異丙酯;烴,諸如己烷及庚烷;芳族烴,諸如甲苯及二甲苯;酮,諸如丙酮及2-丁酮;鹵化烴,諸如二氯甲烷及氯仿;鹵化芳族烴,諸如氯苯;腈,諸如乙腈及丙腈;醯胺,諸如N, N-二甲基甲醯胺及N-甲基吡咯啶酮;及此等溶劑中任一者之混合物。在一較佳實施例中,溶劑為鹵化烴或腈,更佳為鹵化烴,諸如二氯甲烷或氯仿,且最佳為二氯甲烷。
反應可在介於約0℃與反應溶劑之沸點之間的溫度下進行。反應較佳在約10℃或更高之溫度下進行,最佳在約15℃至約35℃之溫度下進行。
一旦反應完成,則可連續用酸之水溶液(例如鹽酸之水溶液)、水、鹼之水溶液(例如碳酸氫鈉之水溶液)及水洗滌混合物,且可蒸發溶劑。此後產物可進一步純化,諸如藉由結晶。式(IV)化合物較佳地自乙腈或庚烷,且最佳地自乙腈結晶。在一最佳實施例中,式(IV)化合物自乙腈再結晶兩次。
在第二步驟中,藉由基團C(O)OR
6之水解,且較佳藉由該基團之酸水解,使式(IV)化合物去保護基。水解可在適合之酸存在下進行且產生式(I)之相應羧酸。
適合之酸之實例包括(但不限於)鹽酸、硫酸、硝酸、甲磺酸、對甲苯磺酸、樟腦磺酸、苯磺酸、甲酸、乙酸及三氟乙酸。在一較佳實施例中,酸為三氟乙酸。
用於水解反應之適合溶劑包括醚,諸如四氫呋喃、二噁烷、環戊基甲醚及1,2-二甲氧乙烷;酯,諸如乙酸乙酯及乙酸異丙酯;烴,諸如己烷及庚烷;芳族烴,諸如甲苯及二甲苯;鹵化烴,諸如二氯甲烷及氯仿;鹵化芳族烴,諸如氯苯;腈,諸如乙腈及丙腈;醯胺,諸如N,N-二甲基甲醯胺及N-甲基吡咯啶酮;及此等溶劑中任一者之混合物。在一較佳實施例中,溶劑為芳族烴,更佳為諸如甲苯或二甲苯之芳族烴,且最佳為甲苯。
反應可在介於約0℃與反應溶劑之沸點之間的溫度下進行。反應較佳在約15℃至約35℃之溫度下進行。
一旦水解完成,則可藉由用水洗滌來移除酸且可蒸發有機溶劑。其後產物可進一步純化,諸如藉由結晶或沈澱。式(I)化合物較佳地自乙醇結晶,或藉由添加庚烷尤其正庚烷自溶液沈澱。
在本發明之另一實施例中,式(II)化合物係藉由烷基化反應製備,該烷基化反應包含使式(V)化合物:
其中R
1至R
4如上文所定義
與式(VI)化合物:
其中
R
7為適合之保護基;且
X為適合之脫離基;
反應以獲得式(VII)之中間化合物:
隨後水解酯R
7O-C(O)-,
以獲得式(II)化合物。
在式(VI)之烷基化劑中,R
7較佳係選自由C
1-4烷基及C
1-4鹵烷基組成之群。更佳地,R
7為C
1-4烷基,諸如甲基、乙基或第三丁基,且最佳地,R
7為乙基。X較佳係選自由以下組成之群:鹵素、三氟甲烷磺酸根、甲磺醯基及對甲苯磺醯基。更佳地,X為鹵素,且更佳為選自氯、溴及碘之鹵素。在一最佳實施例中,式(VI)化合物為溴乙酸乙酯。
式(VI)化合物可相對於式(V)化合物略微過量地使用。若式(VI)化合物以相對於式(V)化合物約1.1至約1.4當量之量使用,則可獲得最佳產率。
式(V)及(VI)之化合物之間的烷基化反應較佳在相轉移觸媒及鹼存在下進行。適合之相轉移觸媒之實例包括溴化四正丁基銨(TBAB)、氯化苄基三甲基銨、氯化苄基三乙基銨、氯化甲基三癸醯基銨、氯化甲基三丁基銨及氯化甲基三辛基銨。最佳為溴化四正丁基銨。適合之鹼之實例包括金屬氫氧化物,諸如氫氧化鈉、氫氧化鉀及氫氧化鋰;金屬碳酸鹽,諸如碳酸鈉、碳酸鉀及碳酸鋰;以及金屬碳酸氫鹽,諸如碳酸氫鈉、碳酸氫鉀及碳酸氫鋰。在一較佳實施例中,鹼為金屬碳酸鹽,最佳為碳酸鈉。鹼可相對於式(VI)化合物過量使用,較佳地以相對於式(VI)化合物約3.0至約6.0當量之量使用,更佳地以相對於式(VI)化合物約3.5至4.0當量之量使用。
用於烷基化反應之適合溶劑包括醚,諸如四氫呋喃、二噁烷、環戊基甲醚及1,2-二甲氧乙烷;酯,諸如乙酸乙酯及乙酸異丙酯;烴,諸如己烷及庚烷;芳族烴,諸如甲苯及二甲苯;酮,諸如丙酮及2-丁酮;鹵化烴,諸如二氯甲烷及氯仿;鹵化芳族烴,諸如氯苯;腈,諸如乙腈及丙腈;及醯胺,諸如N,N-二甲基甲醯胺及N-甲基吡咯啶酮;及此等溶劑中任一者之混合物。在一較佳實施例中,溶劑為芳族烴或鹵化烴,更佳為甲苯或二甲苯,且最佳為甲苯。
反應可在介於約0℃與反應溶劑之沸點之間的溫度下進行。反應較佳在約20℃或更高之溫度下,且最佳在約75℃至約85℃之溫度下進行,尤其當使用芳族烴作為溶劑時。
一旦完成烷基化反應,即可添加水且將相轉移觸媒及鹼萃取至水層中。可隨後分離且進一步純化式(VII)之中間化合物。已發現至少當使用芳族烴作為溶劑時,將以高產率及高純度獲得式(VII)化合物。在此等情況下,式(VII)之中間化合物可未經進一步分離及純化即立即用於下一步驟中。因此,在一較佳實施例中,式(VII)之中間化合物未經分離,而是立即用於下一步驟中。
在該下一步驟中,較佳在鹼性條件下使式(VII)化合物水解,產生式(II)化合物。可在添加鹼之水溶液的有機溶劑中進行水解。
適合之鹼之實例包括金屬氫氧化物,諸如氫氧化鈉、氫氧化鉀及氫氧化鋰;金屬碳酸鹽,諸如碳酸鈉、碳酸鉀及碳酸鋰;及金屬碳酸氫鹽,諸如碳酸氫鈉、碳酸氫鉀及碳酸氫鋰。在一較佳實施例中,鹼為金屬氫氧化物,最佳為氫氧化鈉。鹼較佳相對於式(VI)化合物過量使用,較佳地以相對於式(VII)化合物約2.0至約6.0當量之量使用,更佳地以相對於式(VII)化合物約3.0至約5.0當量之量使用且更佳地用於相對於式(VII)化合物約3.5至約4.5當量之量使用。
用於水解反應之適合溶劑包括醇,諸如甲醇、乙醇、正丙醇、異丙醇、正丁醇及第三丁醇;醚,諸如四氫呋喃、二噁烷、環戊基甲醚及1,2-二甲氧乙烷;烴,諸如己烷及庚烷;芳族烴,諸如甲苯及二甲苯;酮,諸如丙酮及2-丁酮;鹵化烴,諸如二氯甲烷及氯仿;鹵化芳族烴,諸如氯苯;及此等溶劑中任一者之混合物。在一較佳實施例中,溶劑為醇或芳族烴,更佳為諸如甲苯或二甲苯之芳族烴,且最佳為甲苯。
若在烷基化及後續水解反應期間使用相同溶劑,則其為尤其有利的。
反應可在介於約0℃與反應溶劑之沸點之間的溫度下進行。反應較佳在約20℃或更高之溫度下進行,當芳族烴用作溶劑時,最佳在約45℃至約55℃之溫度下進行,或當醇用作溶劑時,最佳在約20℃至約30℃之溫度下進行。
一旦完成水解反應,可藉由添加酸(諸如甲酸)來酸化反應混合物,且可洗滌並濃縮有機層。其後可進一步純化反應產物。式(II)化合物及相應鈉鹽皆可自有機溶劑沈澱或結晶。因此,在本發明之一較佳實施例中,式(II)化合物首先結晶為相應鈉鹽,且此後質子化並結晶為母化合物。在一些實施例中,使式(II)化合物結晶成相應鈉鹽以移除任何非鹽有機雜質。式(II)化合物之鈉鹽較佳地自乙酸乙酯與氫氧化鈉水溶液之混合物結晶,且式(II)化合物較佳地自乙酸乙酯與正庚烷之混合物結晶。
在本發明之另一實施例中,該方法亦包含使式(I)化合物轉化成式(I)之穩定結晶水合物。此可藉由自乙醇或自包含乙醇及一或多種其他適合溶劑之溶劑混合物再結晶式(I)化合物來達成。在一較佳實施例中,式(I)化合物為依洛昔巴且式(I)之穩定結晶水合物為依洛昔巴之結晶單水合物,最佳為依洛昔巴之晶體改性IV(亦稱為依洛昔巴之晶體形式IV)。
先前已揭示晶體改性IV可藉由自乙醇或自乙醇與水之混合物結晶粗依洛昔巴而獲得。在此等條件下,起初形成可分離及乾燥之依洛昔巴之結晶乙醇化物。乾燥結晶乙醇化物產生無水物,其快速吸收來自空氣之水分,從而變成依洛昔巴之晶體改性IV。現已發現當粗依洛昔巴溶解於乙醇與乙酸乙酯之混合物中時,獲得改良之結果。由於依洛昔巴完全溶於此溶劑混合物中,可進行所得溶液之額外過濾步驟以便移除任何外來粒子或微生物。若將正庚烷添加至式(I)化合物於乙醇與乙酸乙酯之混合物中之溶液中,則亦可獲得改良之結果。
在第二態樣中,本發明係關於一種用於製備依洛昔巴之晶體改性IV之方法,其包含以下步驟:
(i) 使粗依洛昔巴溶解於乙醇與乙酸乙酯之混合物中;
(ii) 自步驟(i)中所獲得之粗依洛昔巴於乙醇與乙酸乙酯之混合物中之溶液結晶依洛昔巴的結晶乙醇化物;
(iii) 乾燥依洛昔巴之結晶乙醇化物以獲得依洛昔巴之結晶無水物;及
(iv) 水合依洛昔巴之結晶無水物以獲得依洛昔巴之晶體改性IV。
依洛昔巴之晶體改性IV可具有用CuKα1-輻射獲得之X射線粉末繞射(XRPD)圖案,其至少具有在°2θ位置6.3±0.2及/或19.4±0.2處之特定峰。
在一個實施例中,依洛昔巴之晶體改性IV可具有用CuKα1-輻射獲得之X射線粉末繞射(XRPD)圖案,其具有在°2θ位置6.3±0.2及19.4±0.2處之特定峰,且具有一個或多個特徵峰:10.2±0.2、10.5±0.2、9.4±0.2、9.5±0.2、12.5±0.2、14.6±0.2、15.6±0.2及23.3±0.2。
在另一實施例中,依洛昔巴之晶體改性IV可具有用CuKα1-輻射獲得之X射線粉末繞射(XRPD)圖案,其具有在°2θ位置6.3±0.2、19.4±0.2、10.2±0.2、10.5±0.2、9.4±0.2及9.5±0.2處之特定峰。
在另一實施例中,依洛昔巴之晶體改性IV可具有用CuKα1-輻射獲得之X射線粉末繞射(XRPD)圖案,其具有在°2θ位置6.3±0.2、19.4±0.2、10.2±0.2、10.5±0.2、9.4±0.2、9.5±0.2、12.5±0.2、14.6±0.2、15.6±0.2及23.3±0.2處之特徵峰,及一個或多個在8.3±0.2、11.3±0.2、13.4±0.2、13.9±0.2、16.3±0.2、16.6±0.2、18.2±0.2、18.8±0.2、19.1±0.2、19.3±0.2、19.7±0.2、19.8±0.2、20.5±0.2、21.0±0.2、21.3±0.2、21.4±0.2、22.6±0.2、22.9±0.2、23.1±0.2、23.9±0.2、24.5±0.2、24.7±0.2、25.0±0.2、25.2±0.2、25.4±0.2、25.7±0.2、26.7±0.2、26.9±0.2、28.3±0.2及28.9±0.2處之特徵峰。
在另一實施例中,依洛昔巴之晶體改性IV可具有用CuKα1-輻射獲得之X射線粉末繞射(XRPD)圖案,其具有在°2θ位置6.3±0.2、8.3±0.2、9.4±0.2、9.5±0.2、10.2±0.2、10.5±0.2、11.3±0.2、12.5±0.2、13.4±0.2、13.9±0.2、14.6±0.2、15.6±0.2、16.3±0.2、16.6±0.2、18.2±0.2、18.8±0.2、19.1±0.2、19.3±0.2、19.4±0.2、19.7±0.2、19.8±0.2、20.5±0.2、21.0±0.2、21.3±0.2、21.4±0.2、22.6±0.2、22.9±0.2、23.1±0.2、23.3±0.2、23.9±0.2、24.5±0.2、24.7±0.2、25.0±0.2、25.2±0.2、25.4±0.2、25.7±0.2、26.7±0.2、26.9±0.2、28.3±0.2及28.9±0.2處之特徵峰。
溶解有粗依洛昔巴之乙醇與乙酸乙酯之混合物可為乙醇與乙酸乙酯之10:1至0.5:1混合物(w/w)。在一較佳實施例中,將粗依洛昔巴溶解於乙醇與乙酸乙酯之約1.85:1 (w/w)之混合物中。
在一個實施例中,步驟(ii)中之結晶係藉由將依洛昔巴之晶體改性IV晶種添加至粗依洛昔巴於乙醇與乙酸乙酯之混合物中之溶液中來起始。
在另一實施例中,在步驟(ii)中將正庚烷添加至粗依洛昔巴於乙醇與乙酸乙酯之混合物中之溶液中。
本文所揭示之本發明具有若干優點。所主張之用於製備依洛昔巴之方法包含比先前所揭示之方法更少的步驟,且因此更為高效且具有成本效益。其亦能實現以較高產率及較低雜質含量分離依洛昔巴。該方法包含改良之純化步驟且去除對若干不適用於大規模合成的層析步驟之需求。該方法另外涉及在製備依洛昔巴之晶體改性IV方面之改良。總體而言,該方法能實現以工業規模製備依洛昔巴(或其穩定結晶單水合物)。
式(I)化合物為迴腸膽汁酸轉運體(IBAT)抑制劑。因此,其適用於治療或預防其中需要抑制膽汁酸循環之病狀、病症及疾病,諸如脂肪酸代謝及葡萄糖利用病症、胃腸疾病及病症以及肝臟疾病及病症。
脂肪酸代謝及葡萄糖利用之病症包括(但不限於)高膽固醇血症、血脂異常、代謝症候群、肥胖症、脂肪酸代謝病症、葡萄糖利用病症、涉及胰島素抗性之病症及1型及2型糖尿病。
胃腸疾病及病症包括便秘(包括慢性便秘、功能性便秘、慢性特發性便秘(CIC)及便秘為主型腸躁症候群(IBS-C));克隆氏(Crohn's)病;原發性膽汁酸吸收障礙;腸躁症候群(IBS);發炎性腸病(IBD);迴腸發炎;以及其逆流病及併發症。
如本文所定義之肝臟疾病為肝臟中及與其連接之器官中之任何膽汁酸依賴性疾病,諸如胰腺、門靜脈、肝實質、肝內膽管樹、肝外膽管樹及膽囊。肝臟疾病及病症包括(但不限於)肝臟之遺傳性代謝病症;先天性膽汁酸合成障礙;先天性膽管異常;膽道閉鎖;卡塞 (kasai)術後膽道閉鎖;肝臟移植術後膽道閉鎖;新生兒肝炎;新生兒膽汁鬱積;遺傳性膽汁鬱積;腦腱性黃色瘤病;膽汁酸合成之繼發性缺陷;澤爾韋格氏(Zellweger´s)症候群;囊腫性纖維化(表現於肝臟中);α1-抗胰蛋白酶缺乏症;Alagille症候群(ALGS);Byler症候群;膽汁酸(BA)合成之原發性缺陷;進行性家族性肝內膽汁鬱積(PFIC),包括PFIC-1、PFIC-2、PFIC-3及非特異性PFIC、膽道分流後PFIC及肝臟移植術後PFIC;良性復發性肝內膽汁鬱積(BRIC),包括BRIC1、BRIC2及非特異性BRIC、膽道分流後BRIC及肝臟移植術後BRIC;自體免疫性肝炎;原發性膽汁性肝硬化症(PBC);肝纖維化;非酒精性脂肪肝病(NAFLD);非酒精性脂肪變性肝炎(NASH);門靜脈高血壓;一般膽汁鬱積;妊娠期黃疸;藥物性黃疸;肝內膽汁鬱積;肝外膽汁鬱積;原發性硬化性膽管炎(PSC);膽結石及輸膽管結石;引起膽管樹阻塞之惡性疾病;膽汁鬱積或黃疸引起之瘙癢;胰腺炎;導致進行性膽汁鬱積之慢性自體免疫性肝臟疾病;肝脂肪變性;酒精性肝炎;急性脂肪肝;妊娠期脂肪肝;藥物誘發性肝炎;鐵超載病症;肝纖維化;肝硬化;澱粉樣變性;病毒性肝炎(包括A型肝炎、B型肝炎、C型肝炎、D型肝炎及E型肝炎);肝細胞癌(肝腫瘤);及與由肝臟、膽道及胰腺之腫瘤所致的膽汁鬱積相關之問題。
在另一態樣中,本發明係關於一種醫藥組合物,其包含藉由本文所揭示之方法製備之式(I)化合物以及醫藥學上可接受之賦形劑、載劑或稀釋劑。在一較佳實施例中,藉由本文所揭示之方法製備之式(I)化合物為依洛昔巴。
如本文所用,術語「醫藥學上可接受」係指適用於人類醫藥用途且通常安全、無毒且在生物學上或其他方面皆無不良的彼等化合物、物質、組合物及/或劑型。
醫藥組合物可呈適用於口服投與、非腸道注射(包括靜脈內、皮下、肌肉內及血管內注射)、局部投與或直腸投與之形式。在一較佳實施例中,醫藥組合物呈適於口服投與之形式,諸如錠劑或膠囊。
治療或預防本文中所述病狀所需之劑量將視以下而定:投與途徑、疾病之嚴重程度、患者之年齡及體重及主治醫師在確定用於特定患者之適當療程及劑量水平時通常考慮之其他因素。
待投與化合物之量將因待治療患者而異,且可自每日每公斤體重約1 µg至每日每公斤體重50 mg不等。諸如錠劑或膠囊之單位劑型將通常含有約1至約250 mg活性成分,諸如約1至約100 mg,或諸如約1至約50 mg,或諸如約1至約20 mg,例如約2.5 mg,或約5 mg,或約10 mg,或約15 mg。日劑量可以單次劑量形式投與或分成一個、兩個、三個或更多個單位劑量。IBAT抑制劑之口服投與日劑量較佳在約0.1至約250 mg內,更佳在約1至約100 mg內,諸如在約1至約5 mg內,諸如在約1至約10 mg內,諸如在約1至約15 mg內,或諸如在約1至約20 mg內。
在另一態樣中,本發明係關於一種治療或預防個體(諸如人類)中之本文所述疾病之任一者的方法,其包含向需要此治療或預防之個體投與治療有效量之醫藥組合物,該醫藥組合物包含藉由本文所揭示之方法製備之式(I)化合物。本發明亦係關於一種醫藥組合物,其包含藉由本文所揭示之方法製備之式(I)化合物,其用於治療或預防本文所述疾病中之任一者。本發明亦係關於藉由本文所揭示之方法製備之式(I)化合物的用途,其用於製造用於治療或預防本文所述疾病中之任一者之藥物。在此態樣之一較佳實施例中,藉由本文所揭示之方法製備之式(I)化合物為依洛昔巴。
藉助於以下實例進一步說明本發明,該等實例在任何方面不限制本發明。
實驗方法
通用方法用於以下實例之試劑及起始物質為可商購的或可藉由此項技術中已知之標準方法製備。起始物質3,3-二丁基-7-(甲基硫基)-1,1-二側氧基-5-苯基-2,3,4,5-四氫-1
H-1,5-苯并噻氮呯-8-醇及2-[(2
R)-2-苄氧基脲基-2-苯乙醯胺基]乙酸1,1-二甲基乙酯可如WO 02/50051中所描述製備(分別參見方法26及85)。
高分辨率質譜分析(HRMS)在Waters Acquity H Class UPLC/XevoG2-XS QTof上進行。
實例
實例 1 {[3,3- 二丁基 -7-( 甲基硫基 )-1,1- 二氧離子基 -5- 苯基 -2,3,4,5- 四氫 -1,5- 苯并噻氮呯 -8- 基 ] 氧基 } 乙酸 之製備 在反應器中,混合3,3-二丁基-7-(甲基硫基)-1,1-二側氧基-5-苯基 -2,3,4,5-四氫-1
H-1,5-苯并噻氮呯-8-醇(70.00 kg)、碳酸鈉(69.30 kg)、溴化四丁基銨(4.55 kg)、甲苯(606.20 kg)及溴乙酸乙酯(30.10 kg)且在80℃下攪拌4小時。在冷卻之後,用水(1680 kg)洗滌反應物質,且丟棄水層。
將氫氧化鈉溶液(25.04 kg氫氧化鈉與225.4 kg水之混合物)添加至上方甲苯層中。在47℃下攪拌此混合物3.5小時。冷卻後,向此反應溶液中添加乙酸乙酯(374.74 kg),且其後添加甲酸,同時攪拌直至pH變為3.6。丟棄水層且用水(2 × 333.84 kg)洗滌有機層。
在真空下濃縮有機層且將乙酸乙酯(599.24 kg)添加至濃縮殘餘物中。冷卻後,在攪拌下緩慢添加氫氧化鈉溶液(125.19 kg氫氧化鈉與709.41 kg水之混合物)。使鈉鹽之晶體沈澱且其後藉由離心分離。
混合鈉鹽、乙酸乙酯(599.24 kg)及水(333.8 kg)。添加甲酸,同時攪拌直至pH變為3.5。用水(333.8 kg × 2)洗滌有機層且在真空下濃縮。將正庚烷(228.68 kg)添加至濃縮殘餘物中且攪拌混合物。過濾沈澱晶體且在真空下乾燥以獲得呈灰白色固體狀之標題化合物之乾燥晶體(65.38 kg)。
C
26H
34NO
5S
2之HRMS (ESI,
m/z) [M-H]
-計算值: 504.1880。實驗值:504.1832
實例 2 第三丁基 -N-[(2R)-2- 胺基 -2- 苯乙醯基 ] 甘胺酸酯之製備 在反應器中,混合無水酒精(266.30 kg)、2-[(2
R)-2-苄氧基脲基-2-苯乙醯胺基]乙酸第三丁酯(33.75 kg)、10%鈀/碳(含有50%水) (4.05 kg)及甲苯(87.75 kg)。在18℃下,在3.5 kg/cm
2之壓力下,在氫氣下攪拌此混合物3小時。
過濾反應物質且用無水乙醇(106.65 kg)洗滌濾床。在真空下濃縮濾液且獲得呈無色黏性液體狀之標題化合物(21.70 kg)。
C
14H
21N
2O
3之HRMS (ESI,
m/z)[M+H]
+計算值: 265.1553。實驗值:265.1452
實例 3 第三丁基 -N-{(2R)-2-[({[3,3- 二丁基 -7-( 甲硫基 )-1,1- 二氧離子基 -5- 苯基 -2,3,4,5- 四氫 -1,5- 苯并噻氮呯 -8- 基 -] 氧基 } 乙醯基 ) 胺基 ]-2- 苯 基 乙醯基 } 甘胺酸酯之製備 在反應器中,混合實例1之化合物(65.00 kg)、實例2之化合物(40.95 kg)及二氯甲烷(864.50 kg)。添加2,6-二甲吡啶(37.05 kg),接著在5℃下添加
O-(苯并三唑-1-基)-
N,
N,N',N '-四甲基四氟硼酸鹽(46.15 kg)。在25℃下攪拌此混合物15小時。添加二氯甲烷(1037.40 kg)且用以下液體依序洗滌有機層:(1)稀鹽酸(74.10 kg鹽酸與667.55 kg水之混合物);(2)水(260.00 kg);(3)碳酸氫鈉溶液(26.00 kg碳酸氫鈉與260.00 kg水之混合物);及(4)水(260.00 kg)。
在真空下濃縮有機層。在添加乙腈(306.80 kg)之後,加熱混合物直至其溶解,且隨後冷卻至13℃。晶體沈澱,隨後離心且用乙腈(51.35 kg)洗滌。
將乙腈(606.45 kg)添加至所獲得之全部量之粗晶體中。加熱混合物直至其溶解,且隨後冷卻至0℃。晶體沈澱,離心且用乙腈(51.35 kg)洗滌。將濕晶體真空乾燥,獲得呈白色粉末狀之標題化合物(81.20 kg)。
C
40H
52N
3O
7S
2之HRMS (ESI,
m/z) [M-H]
-計算值: 750.3250。實驗值:750.3164
實例 4 粗依洛昔巴之製備 在反應器中,混合甲苯(1331.10 kg)與實例3之化合物(76.50 kg)。在3℃下添加三氟乙酸(341.95 kg)且在25℃下攪拌混合物29小時。用水(306.00 kg)重複洗滌反應混合物直至水層之pH變為3.4。
在過濾有機層之後,在真空下濃縮濾液。將正庚烷(520.20 kg)添加至濃縮殘餘物中且攪拌混合物。離心所沈澱之晶體且用正庚烷(104.04 kg)洗滌。將晶體真空乾燥,獲得呈灰白色固體狀之粗依洛昔巴(64.34 kg)。
C
36H
44N
3O
7S
2之HRMS (ESI,
m/z) [M-H]
-計算值: 694.2623。實驗值:694.2553
實例 5 依洛昔巴之晶體改性 IV 之製備 在反應器中混合粗依洛昔巴(64.00 kg)、乙酸乙酯(154.88 kg)及無水酒精(288.00 kg),且在40℃下攪拌混合物直至其溶解。在過濾溶液之後,用乙酸乙酯(17.28 kg)與無水酒精(15.36 kg)之混合物洗滌濾液。
在冷卻經過濾之溶液之後,在25℃下添加依洛昔巴之晶體改性IV之晶種(0.032 kg)且攪拌混合物2小時。添加正庚烷(832.00 kg)且在23℃下繼續攪拌混合物。晶體沈澱,離心且用正庚烷(43.52 kg)洗滌。在真空下乾燥濕晶體以獲得乾燥晶體。
隨後乾燥晶體藉由在25℃下將其曝露於潮濕條件(40
+25 %RH)來使其水合,直至達成2.4%至3.4%之含水量(如藉由卡爾費雪(Karl Fischer)滴定所測定)。獲得呈白色粉末狀之依洛昔巴之晶體改性IV (50.64 kg)。
Claims (2)
- 一種用於製備依洛昔巴(elobixibat)之晶體改性IV之方法,該依洛昔巴之晶體改性IV具有用CuKαl-輻射獲得之X射線粉末繞射(XRPD)圖案,其具有在°2θ位置6.3±0.2及19.4±0.2處之特定峰,且具有一個或多個在以下°2θ位置之特徵峰:10.2±0.2、10.5±0.2、9.4±0.2、9.5±0.2、12.5±0.2、14.6±0.2、15.6±0.2及23.3±0.2,該方法包含以下步驟:(i)使粗依洛昔巴溶解於乙醇與乙酸乙酯之混合物中;(ii)自步驟(i)中所獲得之粗依洛昔巴於該乙醇與乙酸乙酯之混合物中之溶液中結晶依洛昔巴的結晶乙醇化物;(iii)乾燥該依洛昔巴之結晶乙醇化物以獲得依洛昔巴之結晶無水物;及(iv)水合該依洛昔巴之結晶無水物以獲得依洛昔巴之晶體改性IV。
- 如請求項1之方法,其中在步驟(ii)中,將正庚烷添加至粗依洛昔巴於該乙醇與乙酸乙酯之混合物中之該溶液中。
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WO2024027013A1 (zh) * | 2022-08-02 | 2024-02-08 | 上海皓元医药股份有限公司 | 一种依洛西巴特晶型ii及其制备方法 |
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CA3091338A1 (en) | 2019-09-12 |
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JP2023109894A (ja) | 2023-08-08 |
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