The present invention relates to a process for preparing a compound of formula 682-4, said process comprising the steps of: (i) converting a compound of formula 682-1 into a compound of formula 682-2; (ii) converting said compound of formula 682-2′ into a compound of formula 682-3; and (iii) converting said compound of formula 682-3 into a compound of formula 682-4. Further aspects of the invention relate to the use of the above process in the preparation of 2′-cyano-2′-deoxy-N
4
-palmitoyl-1-β-D-arabmofuranosylcytosine, a pyrimidine nucleoside which is therapeutically useful in the treatment and/or prevention of cancer.
本发明涉及一种制备式682-4化合物的方法,该方法包括以下步骤:(i)将式682-1化合物转化为式682-2化合物;(ii)将式682-2化合物转化为式682-3化合物;以及(iii)将式682-3化合物转化为式682-4化合物。本发明的其他方面涉及上述方法在制备2'-
氰基-2'-脱氧-N4-棕榈酰-1-β-D-阿拉伯
呋喃糖基
胞嘧啶中的应用,该
嘧啶核苷在治疗和/或预防癌症方面具有治疗作用。