Substituted nucleoside derivatives useful as anticancer agents
申请人:Pfizer Inc.
公开号:US10428104B2
公开(公告)日:2019-10-01
Compounds such as:
processes for the preparation of these compounds, compositions containing these compounds, and the uses of these compounds to treat neoplasms have been disclosed.
化合物,如
已经公开了这些化合物的制备工艺、含有这些化合物的组合物以及这些化合物治疗肿瘤的用途。
A new route to some enantiomerically pure substituted morpholines from d-ribono- and d-gulono-1,4-lactones
cyclization compound which gave with tosyl chloride 1,4-anhydro-2,3- O -isopropylidene-5- O -trityl- d -ribitol. The latter was transformed (acid hydrolysis, periodate oxidation, reduction, tritylation, and tosylation) into a ditosylated derivative 16 , which was cyclized into morpholines by the action of primary amines. Acid hydrolysis, followed by acetylation, gives the (2 S )-acetoxymethyl-4-isopropyltetrahydro-1