18. Yong Ye LI，M ei XU，Fen Er CHEN. Toward Total Synthesis of Yohimbine and Reserpine Alkaloids；Part 1．An Improved Synthesis of cis-5，8-Dihydroxy-I，4，5，8，9，10-hexahydrOnaphthaIene-I，8-1actone via Selective Reduction of the Conjugated Ketone with Zn(BH4)2. Chinese Chemical Letters 2004, 15(3), 265-268.
17. Yanping He, Fener Chen, Guangfu Sun, Yueping Wang, Erik De Clercq, Jan Balzarinib, Christophe Pannecouque. 5-Alkyl-2-[(aryl and alkyloxylcarbonylmethyl)thio]-6-(1-naphthylmethyl) pyrimidin-4(3H)-ones as an unique HIV reverse transcriptase inhibitors of S-DABO series. Bioorganic & Medicinal Chemistry Letters 2004,14, 3173–3176.
16. Yanping He, Fener Chen, Xiongjie Yu, Yueping Wang, Erik De Clercq, Jan Balzarini, Christophe Pannecouque. Nonnucleoside HIV-1 reverse transcriptase inhibitors; part 3. Synthesis and antiviral activity of 5-alkyl-2-[(aryl and alkyloxylcarbonylmethyl)
thio]-6-(1-naphthylmethyl) pyrimidin-4(3H)-ones. Bioorganic Chemistry 2004, 32, 536–548.
15. YUAN JiaLi, WANG Jing Mei, CHEN FenEr. Synthesis of(3aS，6aR)-1，3-Dibenzyl-tetrahydro-1H-thieno[3，4-d]-imidazole-2(3H)-one-4-ylidenepentanoic Acid and Characterization Of Its CrystaI. Chinese J. Struct. Chem. 2004, 23(6), 507-510.
14. Yun-Yan Kuang, Ming Huo and Fen-Er Chen. 3-Bromomethyl-3-ethyl-3,4,6,7,8,8a-hexahydro-1H-pyrrolo[2,1-c][1,4]-oxazine-1,4-dione. Acta Crystallographica Section C Crystal Structure Communications 2004, C60, o505-o506.