Minor iridoids from the roots of Plumeria acutifolia

Six new iridoids, i.e., 13-O-caffeoylplumieride, 13-deoxyplumieride, β-dihydroplumericinic acid glucosylester, 1α-plumieride, 1α-protoplumericin A, and 8-isoplumieride, were isolated from the polar fraction of the methanol percolate of the roots of Plumeria acutifolia. The structures were determined by chemical and spectral methods.