P. Apostol, Mark Anthony G. Fran, Chien-Chang Shen, C. Ragasa
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Triterpene and Sterols from Premna nauseosa Blanco
Chemical investigation of the dichloromethane extract of Premna nauseosa Blanco afforded squalene (1) and a mixture of
?-sitosterol (2) and stigmasterol (3) in about 6:1 ratio. The structures of 1-3 were identified by comparison of their NMR
data with literature data