Iridoids with antimicrobial activity from plumeria alba L.

Three major iridoids; viz. plumieride, protoplumericin A and plumieride acid were isolated from the bark and leaves of Plumeria alba L. Protoplumericin A and plumieride acid are reported for the first time from the titled plant. These compounds were identified through different chemical and spectroscopic methods. They displayed distinct activity against some pathogenic bacteria and fungi