Four limonoids were isolated from Melia toosendan together with two known l
imonoids, nimbolinin B and its 1-deacetyl derivative. Among the new limonoi
ds included one skeletal spiro-, one ring- C-seco nimbolinin-type, and two
trichilinin-type apa-euphol-triterpenoids derivatives. Their structures wer
e determined on the basis of spectroscopic data. (C) 1999 Elsevier Science
Ltd. All rights reserved.