Isolation of two major iridoid glucosides from Incarvillea emodi

Two major iridoid glucosides, namely plantarenaloside, a neurotrophic compound, and boschnaloside, an antibacterial iridoid glucoside, have been isolated from the shoots of Incarvillea emodi (a wild ornamental plant). The compounds are characterised by NMR spectral data and ESI mass spectrometery. This is the first ever report on the isolation of iridoid glucosides from I. emodi (Bignoniaceae).