The chemical composition of Spathelia excelsa (Krause) R. S. Cowan & Brizicky was investigated and the limonoids harrisonin (1) and deacetylspathelin (2), alkaloids folinin and casimiroin mixture (3a,b), plus a further casimiroin (3b) were identified in methanol extract from root. The CH2Cl 2 extract from the rachis yielded protolimonoid 3β-angeloyl-21, 24-epoxy-7α,21α,23α,25-tetrahydroxy-4α,4β,8β, 10β-tetramet...