Heterocycles p. 1663 - 1669 (1997)
Update date:2022-08-03
Topics:
Tagami, Keiko
Takagi, Shuzo
Sano, Shigeki
Shiro, Motoo
Nagao, Yoshimitsu
Dihydroxyalkanoic ester derivatives (4a,b) and (5a,b) of 20S-camptothecin (1) were diastereoselectively synthesized by exploiting osmium-catalyzed asymmetric dihydroxylation based on the Sharpless procedure. The absolute configuration of the newly formed
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