[EN] PROCESSES FOR PREPARING TUBULYSIN DERIVATIVES AND CONJUGATES THEREOF<br/>[FR] PROCÉDÉS DE PRÉPARATION DE DÉRIVÉS DE TUBULYSINE ET CONJUGUÉS DE CEUX-CI
申请人:ENDOCYTE INC
公开号:WO2013149185A1
公开(公告)日:2013-10-03
The invention described herein pertains to processes for preparing tubulysin derivatives, conjugates of tubulysins, and intermediates therefore. In one illustrative embodiment of the invention, processes for derivatives or analogs of natural tubulysins including compounds of formula (T). In another embodiment, vitamin receptor binding conjugates of tubulysins are described. The processes include one or more steps described herein. In another embodiment, a process is described for preparing a compound of formula B, wherein R5 and R6 are as described in the various embodiments herein, such as each being independently selected from optionally substituted alkyl or optionally substituted cycloalkyl; and R8 is C1-C6 n-alkyl; wherein the process comprises the step of treating a compound of formula A with a silylating agent, such as triethylsilyl chloride, and a base, such as imidazole in an aprotic solvent.
本发明涉及制备管藜菌素衍生物、管藜菌素的结合物以及它们的中间体的过程。在本发明的一个示例实施方式中,涉及制备管藜菌素的衍生物或类似物,包括化合物的公式(T)。在另一个实施方式中,描述了管藜菌素的维生素受体结合物。这些过程包括本文中描述的一个或多个步骤。在另一个实施方式中,描述了一种制备公式B化合物的过程,其中R5和R6如本文中的各种实施方式中所述,例如各自独立地选自可选择地取代的烷基或可选择地取代的环烷基;以及R8为C1-C6的n-烷基;其中该过程包括用硅化剂(如三乙基硅氯)和碱(如咪唑)在无极性溶剂中处理公式A化合物的步骤。