The colorless oil 3 had the same molecular formula C20H32O2 as 2, which was disclosed Tbcahylcetdhc.eofpolsroeCrul2de0oHs-sm32oOoil2leNc3ual,ha3ra2id7o.n2t2hp9ee5a)ks(FainimgtuehreemHS1oR7lE)e.ScTIuMhleSa1reHxfpoaenrrdmim1u3eClnatN(CmM2/R0Hz(3T322aO7b.l22e21a9,8sF[i2Mg,u...