Abstract
By the action of NBS in aq DME, dl-17-bromo-18-hydroxy EPA methyl ester 6 was prepared, which was effectively resolved by lipase PS and vinyl acetate in the presence of a thiacrown ether to give the resolved bromoacetate (7) and bromohydrin (8), each being transformed into the corresponding epoxide (3 and 4). The absolute configuration of 8 was established by the Kusumi-Moscher method. Both epoxides were treated with LDA to provide allyl alcohols (5a and b), accompanied with the formation of cyclopropyl derivatives (10a and b).
Full Text 
Sign-in/Register to access full text options
Sign-in/Register to access full text options 
Published version (
Free)
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
