Syntheses of 2,5- and 2,6-difluoronorepinephrine, 2,5-difluoroepinephrine, and 2,6-difluorophenylephrine: effect of disubstitution with fluorine on adrenergic activity

Practical synthesis of PC190723, an inhibitor of the bacterial cell division protein FtsZ

A high-yielding and practical synthesis of the bacterial cell division inhibitor PC190723 is described. The synthesis is completed in a longest linear sequence of five steps from commercially available starting materials and can be readily executed on a multigram scale.