TWI382022B - 二甲氧基剋癌易(docetaxel)之丙酮溶劑合物及其製法 - Google Patents

二甲氧基剋癌易(docetaxel)之丙酮溶劑合物及其製法 Download PDF

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TWI382022B
TWI382022B TW093128097A TW93128097A TWI382022B TW I382022 B TWI382022 B TW I382022B TW 093128097 A TW093128097 A TW 093128097A TW 93128097 A TW93128097 A TW 93128097A TW I382022 B TWI382022 B TW I382022B
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acetone
hydroxy
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Eric Didier
Marc-Antoine Perrin
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Description

二甲氧基剋癌易(DOCETAXEL)之丙酮溶劑合物及其製法
本發明係關於二甲氧基克癌易或4-乙醯氧基-2α-苯甲醯氧基-5β,20-環氧基-1-羥基-7β,10β-二甲氧基-9-酮基紫杉-11-醇-13α-基(2R,3S)-3-第三丁氧羰基胺基-2-羥基-3-苯基丙酸酯之丙酮溶劑合物並關於其製法。
4-乙醯氧基-2α-苯甲醯氧基-5β,20-環氧基-1-羥基-7β,10β-二甲氧基-9-酮基紫杉-11-烯-13α-基(2R,3S)-3-第三丁氧羰基胺基-2-羥基-3-苯基丙酸酯係呈現顯著抗癌及抗白血病性質。
4-乙醯氧基-2α-苯甲醯氧基-5β,20-環氧基-1-羥基-7β,10β-二甲氧基-9-酮基紫杉-11-烯-13α-基(2R,3S)-3-第三丁氧羰基胺基-2-羥基-3-苯基丙酸酯係根據特別揭示於國際申請案PCT WO 96/30355或國際申請案PCT WO 99/25704之方法製得;根據這些申請案所揭示方法,該產物無結晶且未經特徵化。
已發現由化學觀點來看,4-乙醯氧基-2α-苯甲醯氧基-5β,20-環氧基-1-羥基-7β,10β-二甲氧基-9-酮基紫杉-11-烯-13α-基(2R,3S)-3-第三丁氧羰基胺基-2-羥基-3-苯基丙酸酯之丙酮溶劑合物係已完全特徵化。
根據本發明,4-乙醯氧基-2α-苯甲醯氧基-5β,20-環氧基-1-羥基-7β,10β-二甲氧基-9-酮基紫杉-11-烯-13α-基(2R,3S)-3-第三丁氧羰基胺基-2-羥基-3-苯基丙酸酯之丙酮溶劑合物可藉4-乙醯氧基-2α-苯甲醯氧基-5β,20-環氧基-1-羥基-7β,10β-二甲氧基-9-酮基紫杉-11-烯-13α-基 (2R,3S)-3-第三丁氧羰基胺基-2-羥基-3-苯基丙酸酯自水與丙酮之混合物中結晶,接著在較低壓力下乾燥已分離產物的方式獲得。
對於根據本發明方法之實施,特別有利地是-將4-乙醯氧基-2α-苯甲醯氧基-5β,20-環氧基-1-羥基-7β,10β-二甲氧基-9-酮基紫杉-11-烯-13α-基(2R,3S)-3-第三丁氧羰基胺基-2-羥基-3-苯基丙酸酯溶於丙酮中,-以水處理該溶液,-以該產物於丙酮/水混合物中之懸浮液將晶種植入該溶液中,然後再以水處理之,-分離所獲得的晶體,然後-在較低壓力下乾燥之。
一般而言,4-乙醯氧基-2α-苯甲醯氧基-5β,20-環氧基-1-羥基-7β,10β-二甲氧基-9-酮基紫杉-11-烯-13α-基(2R,3S)-3-第三丁氧羰基胺基-2-羥基-3-苯基丙酸酯係溶在丙酮中。較佳係以所用4-乙醯氧基-2α-苯甲醯氧基-5β,20-環氧基-1-羥基-7β,10β-二甲氧基-9-酮基紫杉-11-烯-13α-基(2R,3S)-3-第三丁氧羰基胺基-2-羥基-3-苯基丙酸酯的重量(以克表示)計,丙酮量為介於5與20體積份數(毫升)之間(理想為10)。
較佳植入晶種係以60至80克(理想為68克)/公升混合物之濃度進行,其中該混合物包含體積比介於65/35至75/25,較佳係近68/32之丙酮/水。沉澱結束時混合物中丙酮/水之體積比係介於最小值70/30與最大值30/70之間(理想為45/55)。整個結晶程序係根據實施本發明之較佳方式在20±5℃(理想為20℃)下進行。
4-乙醯氧基-2α-苯甲醯氧基-5β,20-環氧基-1-羥基-7β,10β-二甲氧基-9-酮基紫杉-11-烯-13α-基(2R,3S)-3-第三丁氧羰基胺基-2-羥基-3-苯基丙酸酯之丙酮溶劑合物結晶最好係藉過濾或離心方式分離。乾燥係在一般介於0.5與30kPa,較佳在0.7kPa範圍之較低壓力及介於30與 60℃,較佳在40℃範圍之溫度下進行。
研究產物之乾燥。因此,在高於70℃(70至100℃)之溫度下經審慎處理之4-乙醯氧基-2α-苯甲醯氧基-5β,20-環氧基-1-羥基-7β,10β-二甲氧基-9-酮基紫杉-11-烯-13α-基(2R,3S)-3-第三丁氧羰基胺基-2-羥基-3-苯基丙酸酯之丙酮溶劑合物樣品顯示丙酮含量的損失隨溫度的增加而增加。對於乾燥,較佳溫度因此係介於30與60℃之間,更佳係在40℃範圍。丙酮含量的平均值為7%,其代表包含一個丙酮分子之溶劑合物的近丙酮化學計量,6.5%。
利用下列實例將更完整的描述本發明,但不應將該等實例視為限制本發明。
實例1
在20±5℃週遭溫度下將940毫升純水加入207克約92重量%4-乙醯氧基-2α-苯甲醯氧基-5β,20-環氧基-1-羥基-7β,10β-二甲氧基-9-酮基紫杉-11-烯-13α-基溶於約2公升丙酮之溶液中,然後以2克自丙酮/水分離出的4-乙醯氧基-2α-苯甲醯氧基-5β,20-環氧基-1-羥基-7β,10β-二甲氧基-9-酮基紫杉-11-烯-13α-基(2R,3S)-3-第三丁氧羰基胺基-2-羥基-3-苯基丙酸酯溶於20毫升水與20毫升丙酮之混合物的懸浮液進行晶種植入。持續攪拌混合物近10至22小時並以4至5小時加入1.5公升純水。持續攪拌混合物60至90分鐘,然後在較低壓力下過濾懸浮液。在過濾器上以由450毫升丙酮與550毫升純水配成之溶液清洗濾餅,然後在烘箱中較低壓力(0.7kPa)及55℃下乾燥4小時。獲得197克包含0.1%水及7.2%丙酮之4-乙醯氧基-2α-苯甲醯氧基-5β,20-環氧基-1-羥基-7β,10β-二甲氧基-9-酮基紫杉-11-烯-13α-基(2R,3S)-3-第三丁氧羰基胺基-2-羥基-3-苯基丙酸酯.丙酮(為化學計量溶劑合物之理論值的6.5%)。
乾燥研究
再度將產物放在烘箱中並在0.7kPa之較低壓力及60℃下持續乾燥18小時,在60℃及近80%之相對溼度(160釐米汞柱之低壓)下乾燥3小時並在70℃及近80%之相對溼度(200釐米汞柱之低壓)下乾燥18小時。在此階段,水含量為0.2%,丙酮含量為4.7%(194克)。在此同一階段,1份1克批次物在5釐米汞柱之較低壓力下持續在80℃中乾燥18小時(殘留丙酮含量為0.5%),然後在100下乾燥21小時(殘留丙酮含量為0.02%)。剩餘物在5釐米汞柱之較低壓力及80℃下乾燥31小時(丙酮1.7%,水0.3%,關於此物之分析為96.5%,純度大於99%)。
用於取得圖譜(圖1)之操作條件
分析係在裝有Anton Parr TTK溫度室之Bruker D5000繞射儀上進行。反射裝置具有Bragg-Brentano型(θ-θ)之聚焦幾何。粉末係沉積在中空鋁樣品槽上。鈷對陰極管(40仟伏特/30毫安培)供應經鐵過濾之入射線。以兩波長發射輻射:CoK α1 (λ=1.7890埃)及CoK α2 (λ=1.7929埃)。以鐵過濾無法完全除去 輻射(鈷的λ=1.6208埃),其仍佔入射輻射之K α雙重態之強度(製造商的數據)的1%。
Soller狹縫改善光束之平行性。可變前狹縫使其可保持固定之樣品照射面積。1釐米準直器限制該管與測量室間的散射。使用Braun 50 M多通道直線偵測器。其呈現寬度為10o 2θ角之偵測視窗。記錄該圖譜之條件如下:在溫度、壓力及相對濕度之週遭條件下從1.5o 2θ掃描至50o 2θ,計數時間為30秒/1o 2θ。
實例1產物之NMR光譜
1 H NMR光譜(400MHz,CDCl3 ,以ppm表示δ):1.20(s,3H),1.22(s,3H),1.37(s,9H),1.67(s,1H),1.72(s,3H),1.80(mt,1H),1.88(s,3H),2.17(s,6H),從2.20至2.40(mt,2H),2.36(s,3H),2.70(mt,1H),3.30(s,3H),3.46(s,3H),3.47(mt,1H),3.82(d,J=7.5Hz,1H),3.86(dd,J=11及6.5Hz,1H), 4.17(d,J=8.5Hz,1H),4.30(d,J=8.5Hz,1H),4.63(mt,1H),4.80(s,1H),4.97(寬d,J=10Hz,1H),5.27(寬d,J=10Hz,1H),5.44(d,J=10Hz,1H),5.64(d,J=7.5Hz,1H),6.21(t,J=9Hz,1H),從7.25至7.45(mt,5H),7.49(t,J=7.5Hz,2H),7.60(寬t,J=7.5Hz,1H),8.09(d,J=7.5Hz,2H)。
圖1代表實例1產物包含丙酮之溶劑合物型(A型)之參考PXRD圖譜。

Claims (11)

  1. 一種4-乙醯氧基-2α-苯甲醯氧基-5β,20-環氧基-1-羥基-7β,10β-二甲氧基-9-酮基紫杉-11-烯-13α-基(2R,3S)-3-第三丁氧羰基胺基-2-羥基-3-苯基丙酸酯之結晶型丙酮溶劑合物;其中丙酮含量為6.5%,且其在PXRD圖譜上具有峰值9.2;11.9;16.8;20.6;23.2±2θ。
  2. 如申請專利範圍第1項之結晶型丙酮溶劑合物,其在PXRD圖譜上具有峰值8.7;9.2;11.9;14.7;15.0;15.8;16.8;18.5;20.6;23.2;±2θ。
  3. 一種用於製備4-乙醯氧基-2α-苯甲醯氧基-5β,20-環氧基-1-羥基-7β,10β-二甲氧基-9-酮基紫杉-11-烯-13α-基(2R,3S)-3-第三丁氧羰基胺基-2-羥基-3-苯基丙酸酯之丙酮溶劑合物的方法,其包括4-乙醯氧基-2α-苯甲醯氧基-5β,20-環氧基-1-羥基-7β,10β-二甲氧基-9-酮基紫杉-11-烯-13α-基(2R,3S)-3-第三丁氧羰基胺基-2-羥基-3-苯基丙酸酯自水與丙酮之混合物中結晶,其包括以該產物於丙酮/水混合物之懸浮液植入晶種於該溶液中,然後接著以水處理之,而且其包括在較低壓力下乾燥所得產物;其中丙酮/水混合物具有丙酮/水體積比介於65/35至75/25之間。
  4. 如申請專利範圍第3項之方法,其中該植入晶種係以60至80克/公升混合物的濃度進行,其中該混合物包含體積比介於65/35至75/25之丙酮/水。
  5. 如申請專利範圍第4項之方法,其中該植入晶種係以包含體積比為約近68/32之丙酮/水的混合物進行。
  6. 如申請專利範圍第3項之方法,其中沉澱結束時,該丙酮/水混合物中丙酮/水之體積比係介於最小值70/30與最大值30/70之間。
  7. 如申請專利範圍第6項之方法,其中沉澱結束時,該丙酮/水混合物中丙酮/水之體積比係近45/55。
  8. 如申請專利範圍第3至7項中任一項之方法,其中該結晶程序係在20±5℃下發生。
  9. 如申請專利範圍第3項之方法,其中乾燥係在0.7kPa範圍之壓力及介於30與60℃之溫度進行。
  10. 如申請專利範圍第9項之方法,其中乾燥係在40℃範圍下進行。
  11. 如申請專利範圍第3項之方法,其中該製法係直接由4-乙醯氧基-2α-苯甲醯氧基-5β,20-環氧基-1-羥基-7β,10β-二甲氧基-9-酮基紫杉-11-烯-13α-基(2R,3S)-3-第三丁氧羰基胺基-2-羥基-3-苯基丙酸酯之丙酮溶液開始進行,該酯係藉由4-乙醯氧基-2α-苯甲醯氧基-5β,20-環氧基-1-羥基-7β,10β-二甲氧基-9-酮基紫杉-11-烯-13α-基(2R,4S,5R)-3-第三丁氧羰基胺基-2-(4-甲氧基-苯基)-4-苯基噁唑啉基-5-羧酸酯之酯於酸介質中去保護所獲得。
TW093128097A 2003-09-19 2004-09-17 二甲氧基剋癌易(docetaxel)之丙酮溶劑合物及其製法 TWI382022B (zh)

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