Efficient Synthesis of Gemcitabine 5′-O-Triphosphate Using Gemcitabine 5′-O-Phosphoramidate as an Intermediate
作者:Janina Baraniak、Renata Kaczmarek、Ewa Radzikowska
DOI:10.1055/s-0034-1378353
日期:——
A new efficient approach for the synthesis of gemcitabine triphosphate has been developed. The method is based on the ring-opening reaction of 2-cyanoethoxy-2-oxo-1,3,2-oxathiaphospholane with protected gemcitabine in the presence of DBU. Subsequent treatment of gemcitabine monophosphate with DCC in the presence of ammonia provides gemcitabine 5′-O-phosphoramidate. Finally, this compound, on reaction
已开发出一种新的有效合成吉西他滨三磷酸的方法。该方法基于 2-cyanoethoxy-2-oxo-1,3,2-oxathiaphospholane 与受保护的吉西他滨在 DBU 存在下的开环反应。随后在氨存在下用 DCC 处理吉西他滨单磷酸盐,提供吉西他滨 5'-O-氨基磷酸酯。最后,该化合物与焦磷酸盐反应后,以 50% 的产率提供吉西他滨 5'-三磷酸盐。