Cong Zheng, Yuanzhang Fang, Weiguang Tong, Guoliang Li, Haigang Wu, Wenbo Zhou, Qingxiang Lin, Feifei Yang,  Zhengfeng Yang,  Peng Wang,  Yangrui Peng, Xiufeng Pang, Zhengfang Yi, Jian Luo, Mingyao Liu,* and Yihua Chen*. Synthesis and Biological Evaluation of Novel Tetrahydro-β-carboline Derivatives as Antitumor Growth and Metastasis Agents through Inhibiting the Transforming Growth Factor‑β Signaling Pathway. Journal of Medicinal Chemistry. dx.doi.org/10.1021/jm401117t | J. Med. Chem. 2014, 57, 600−612.