The present invention provides improved formulation with reduced tert-butanol levels and/or manufacturing process for drug compounds that form a solvate with tert-butanol. For example, the drug compound may be SDC-TRAP-0063.本發明提供具有降低量的三級丁醇之經改善的調合物和/或用於與三級丁醇形成溶劑合物之藥物化合物的製造方法。例如,該藥物化合物可為SDC-TRAP-0063。