Chemical constituents of Parkia javanica, Alocasia indica and Premna latifolia

Department of Chemistry, Tripura University, Suryamaninagar, Agartala-799 130, West Tripura, India
E-mail : dindabtu@rediffmail.com, Fax : 91-381-2374801
School of Pharmaceutical Sciences, Kitasato University, Minato-ku, Tokyo-108 8641, Japan
Manuscript received 31 December 2009, accepted 14 January 2010

Isolation and characterization of one new phenyl propanoid, parkinol from Parkia javanica leaves; five known
sterols, ergosterol, campesterol, stigmasterol, β-sitosterol and clionasterol from Alocasia indica tubers; and two known
sterols, β-sitosterol and stigmasterol from Premna latifolia leaves are reported. The structure of parkinol was established
as 4' (methylene nonanoyloxy)-3-phenyl propanol by spectroscopic studies.