derivatives of the parent drug bromhexine is described. By using the commercially available Pd(OAc)2/BuPAd2 (CataCXium A, Ad = adamantyl) catalyst system, the carbonylative arylation, amination, and alkoxylation of bromhexine proceeded with up to 79 % product yield. Selected synthesized derivatives of bromhexine showed improved effects as glucocerebrosidaseinhibitors.