Propose a synthetic route for the following reaction. 1) HSO4, heat; 2) BH3-THF; 3) HO, NaOH 1) 1 Br, hv; 2) KO-t-Bu; 3) HBr, ROOR 1) NaOEt; 2) NBS, hv; 3) NaSMe 1) NaCCH; 2) 9-BBN; 3) HO2, NaOH 1) NaCCCH3; 2) Na/NH3(I); 3) OsO4; 4) NaHSO3, HO 1) Br2, CCl4; 2) xs NaNH2; 3) H2O; 4) O3; 5) H2O OH