Three new tetranorrriterpenes, 1-cinnamoyltrichilinin [4], 1-tigloyltrichilinin [5], and 1-acetyltrichilinin [6], in addition to the known ohchinin-3-acetate [3], have been isolated from the fruit of Melia volkenrii. Their structures have been established by spectroscopic methods. They are probable biosynthetic precursors of the salannin type limonoids.