Constituents from the Leaves of Tecoma stans Juss
Tecoma stans Juss (Bignoniaceae) has wide range of therapeutic uses and is used in the treatment of diabetes, digestive problems, infections, diuretic and vermifuge. In an attempt to isolate the phytoconstituents from the leaves of Tecoma stans, chloroform and methanolic extracts were subjected to column chromatography which resulted in two iridoid glycosides, 5-deoxystansioside, plantarenaloside apart from β-sitosterol, lupeol, luteolin and ursolic acid. Screening of the methanolic extract for antimicrobial activity showed moderate antimicrobial activity.
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