4‐diol and (S)‐propylene oxide as the starting materials. Sharpless epoxidation on the protected dienediol generated the required three consecutive stereocenters, and malonicestersynthesis added the acetyl unit. Yamaguchi protocol was applied to form the key ester with two terminal olefins ready for the ring‐closing metathesis. RCM, hydrogenation, selenylation, oxidation and deprotections gave aspicilin
Tandem Catalytic Asymmetric Ring-Opening Metathesis/Ring-Closing Metathesis
作者:Gabriel S. Weatherhead、J. Gair Ford、Erik J. Alexanian、Richard R. Schrock、Amir H. Hoveyda
DOI:10.1021/ja993681a
日期:2000.3.1
Stereocontrolled Synthesis of the Fully Elaborated Aziridine Core of the Azinomycins
作者:Robert S. Coleman、Jian-She Kong
DOI:10.1021/ja9801386
日期:1998.4.1
Chiral synthesis via organoboranes. 13. A highly diastereoselective and enantioselective addition of [(Z)-.gamma.-alkoxyallyl]diisopinocampheylboranes to aldehydes
作者:Herbert C. Brown、Prabhakar K. Jadhav、Krishna S. Bhat