The present invention provides two synthetic routes for the preparation of Temsirolimus (compound 1b and analog of Temsirolimus 1a). The first route includes the synthesis of CCI-779 by directly reacting rapamycin (4b) or Prolyl-rapamycin (4a) with substituent-2,2-bis(methoxy) propionic acid anhydride(11) in the presence of an organic base, followed by deprotection to give CCI-779 or Proline CCI-779. The second route includes a process involving a reaction of rapamycin-OH-31-sily ether (4d) or Prolyl-rapamycin-OH-31-sily ether (4c) with substituent-2,2-bis(methoxy) propionic acid anhydride(11) in the presence of an organic base and followed by subsequent hydrolysis step to obtain the desired CCI-779 or Proline CCI-779.
Compound 11, as described in this invention, is stable at room temperature, cost effective and ease of processing.
该发明提供了两种合成通向
替西罗莫司(化合物1b和
替西罗莫司类似物1a)的方法。第一种方法包括通过在有机碱存在下,直接将
雷帕霉素(4b)或脯
氨酰-
雷帕霉素(4a)与取代基-2,2-双(甲氧基)
丙酸酐(11)反应,然后去保护基得到CCI-779或脯
氨酰CCI-779的合成。第二种方法包括涉及
雷帕霉素-OH-31-
硅醚(4d)或脯
氨酰-
雷帕霉素-OH-31-
硅醚(4c)与取代基-2,2-双(甲氧基)
丙酸酐(11)在有机碱存在下反应,然后经过随后的
水解步骤得到所需的CCI-779或脯
氨酰CCI-779。
如本发明所述,化合物11在室温下稳定,成本效益高且易于加工。