8. Fen-Er Chen, Ge Meng, Yan-Ping He, Yu Cheng, Xiu-Hong Ling. A PRACTICAL SYNTHESIS OF (3aa, 6aa)-1,3-DIBENZYL HEXAHYDRO-1HTHIENO[3,4-d]IMIDAZOL-2(3H)-ONE. OPPI BRIEFS 2001, 33, 311-313.

7. Fen-Er Chen* , Xiou-Hong Ling, Yan-Ping He, Xiao-Hua Peng. Tetrabutylammonium Peroxydisulfate in Organic Synthesis; XI.1 A Novel and Selective Approach to the Oxidative Deprotection of Allyl Ethers with Tetrabutylammonium Peroxydisulfate. Synthesis 2001, 12, 1772-1774