Allantoin from the leaves of Pisonia grandis R.Br.
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Date
2011
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Abstract
Phytochemical investigation o f the leaves o f the Pisonia grandis afforded three compounds (I-3). Compound I was
identified as the insulin mimetic molecule pinitol and its isolation was reported in our earlier paper'. The present
paper deals with the isolation o f compounds 2 and 3. whose structures were established as that o f allantoin and its
hydrogen bonded isomeric crystalline form, based on spectroscopic data and it is the first report o f isolation of
allantoin and its hydrogen bonded isomer from Pisonia genus and from this species.