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Presented at the DLSU Research Congress 2015
De La Salle University, Manila, Philippines
March 2-4, 2015
Triterpenes and Sterol from Hoya mindorensis
Virgilio D. Ebajo Jr.1, Chien-Chang Shen2, and Consolacion Y. Ragasa 1*
2National
1Chemistry Department, De La Salle University - Manila
Research Institute of Chinese Medicine, 155-1, Li-Nong St., Sec. 2, Taipei 112, Taiwan
*consolacion.ragasa@dlsu.edu.ph
Abstract: Chemical investigation of the dichloromethane extract of the air-dried roots of
Hoya mindorensis Schlechter afforded lupenone (1) and lupeol (2). The leaves yielded 2,
squalene (3), β-sitosterol (4), while stems afforded betulin (5). The structures of 1-5 were
identified by comparison of their 1H and/or 13C NMR data with those reported in literature.
Keywords: Hoya mindorensis; Apocynaceae; lupenone; lupeol; squalene; β-sitosterol; betulin
GRC -III-010