Application of the TMSOTfAgClO4 activator system to the synthesis of novel, potent, C-10 phenoxy derivatives of dihydroartemisinin
作者:Paul M. O'Neill、Alison Miller、Stephen A. Ward、B.Kevin Park、Feodor Scheinmann、Andrew V. Stachulski
DOI:10.1016/s0040-4039(99)01891-2
日期:1999.12
promotes the efficient C-10 phenoxylation of dihydroartemisinin (3) in good chemical yield and excellent stereoselectivity. In contrast to previous reports on other phenoxyglycoside derivatives, the phenoxy derivatives (5a–11b) of dihydroartemisinin do not undergo O to C rearrangement to the corresponding C-10-aryl derivatives. All of the new derivatives had potent in vitro antimalarial activity.