A highly efficient synthesis of the FGH ring of micrandilactone A. application of thioureas as ligands in the co-catalyzed Pauson-Khand reaction and Pd-catalyzed carbonylative annulation - Yefeng Tang; Yan Dong Zhang; Mingji Dai; Tuoping Luo; Lujiang Deng; Jia Hua Chen; Zhen Yang (Organic Letters, 2005)