(E)-3-(4-((2-(2-(1,1-difluoroethyl)-4-fluorophenyl)-6-hydroxybenzo[b]thiophen-3-yl)oxy)phenyl)acrylic acid
LSZ-102 is under investigation in clinical trial NCT02734615 (Phase I/Ib Trial of LSZ102 Single Agent or LSZ102 + LEE011 or LSZ102 + BYL719 in ER+ Breast Cancers).