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Total synthesis of Avermectin A1a (partial):
Reference: Danishefsky, S.J.; et. al. J. Am. Chem. Soc., 1989, 111, 2967. DOI
Keywords: Si-Allyl+Oxonium • Cu-Me+Allyl-X • Allyl-X+Cu-R •
Reagents: Crotyl-SiR3 • BF3·OEt2 • LiCuMe2

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