Phyllanthus engleri

Isol. from Phyllanthus engleri. Needles (CHCl3/pet. ether). Mp 233-234°. [a]] -h43° (CHCI3). 

Similar rearrangements in the ursane series (cf. cation 530) are known but appear to be of minor consequence in elaborating new compounds no more than a dozen triterpenoids belonging to all these types (cf. Fig. 8.1.32) have been isolated so far. Of these, only baueranes (corresponding to the multiflorane type) (Fig. 8.1.32) have been encountered in woody tissues. Thus, the simplest member, bauerenol (554), has been found to occur in the barks of Acronychia baueri and Ilex crenata (229). Phyllanthol (555), from the root-bark of Phyllanthus engleri, represents an alternative fate for the isoursane cation (ursane equivalent of cation 543) (109, 228). 

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