Two new limonoids from Melia toosendan

Two new limonoid-type triterpenoids, named 12-o-ethyl-1-deacetylnimbolinin B and 1-o-tigloyl-1-o-debenzoylohchinal, have been isolated from the fruit of Melia toosendan Sieb. et Zucc. Their structures were elucidated by spectral methods, including 2D-NMR spectra.