vin viii) Xi J ix) X CH ix 3 CH xii) xiii) CH3 CH CH3 DBH3 in THF 2) HO, cat. OH Jou Solvent D) HBr EtODEt, heat 2) Na CN in acetone CHS ONG/CHOH H/CHOH 050 catalytic OB H02 C(CH 23 1) Br hu in CCl4 23 Mg in ether 3) D0 Na 2) then Hind D