Li, Tian-Ze; Geng, Chang-An; Yin, Xiu-Juan; Yang, Tong-Hua; Chen, Xing-Long; Huang, Xiao-Yan; Ma, Yun-Bao; Zhang, Xue-Mei; Chen, Ji-Jun Organic Letters, 2017, vol. 19, # 3 p. 429 - 431 doi: 10.1021/acs.orglett.6b03801