1-(3-Methyl-3-phenylbutyl)-4-(2-(3-pyridyl)thiazolidin-4-ylcarbonyl)piperazine fumarate 131888-54-5 Piperazine, 1-(3-methyl-3-phenylbutyl)-4-((2-(3-pyridinyl)-4-thiazolidinyl)carbonyl)-, (E)-2-butenedioate (1:1) YM 264 YM-264