Abstract
The Wittig reaction between phosphonium salt 1 and the hydroxybutenolide 2 followed by deprotection, macrocyclisation, and reduction gives the 6-hydroxymilbemycin E 9 which by further cyclisation is converted into milbemycin G 11.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have