please explain and show mechanism in detail. thank you Scheme 8. Leahy Asymmetric Synthesis of CBD OMe 1. K₂CO3/ Me₂SO4 1. NaOH / acetone 2. NaBH4 OHC. 3. Savinase/ 2. s-BuLi 3. DMF MeO C5H11 vinyl butyrate 4. NaOH 80% 5 80% DCC/DMAP 28 1. MeLi 2. Grubbs II 31% 26 1. KHMDS toluene CO₂H 2. TMSCI 72% 30 Ar 1. Ph3P=CH₂ 2. MeMgl 24% Ar CO₂H 29 OH 27 98% ee Ar CBD Ar=2,6-(OME)2-4-C5H1₁1

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