A new triterpenoid named melliferone (1), three known triterpenoids, moronic acid (2),
anwuweizonic acid (3), and betulonic acid (4), and four known aromatic compounds (5− 8) …

Oleanolic acid (1) was identified as an anti-HIV principle from several plants, including Rosa
woodsii (leaves), Prosopis glandulosa (leaves and twigs), Phoradendron juniperinum …

In a continuing structure− activity relationship study of potent anti-HIV agents, seven new
triterpene derivatives were designed, synthesized, and evaluated for in vitro antiviral activity …

Based on our previous finding that 3-O-acyl-betulinic and-oleanolic acids, especially the 3-O-
(3 ', 3 '-dimethyl)-succinyl derivatives (2 and 4), demonstrated potent anti-HIV activity [EC50< …

An urgent need for additional agents to treat human immunodeficiency virus type 1 (HIV-1)
infection led us to assess the anti-HIV-1 activity of the natural product propolis in CD4+ …

Extracts of the tropical rainforest trees Homalanthus acuminatus and Chrvsobalanus icaco
were active in the NCI AIDS-antiviral screen. Diterpenes 1–4 were found in H. acuminatus …

In the current study we show that propolis, a non-toxic natural bee-hive product, suppresses
HIV-1 replication and modulates in vitro immune responses. CEM cells were treated with …

The EtOAc-soluble fraction of the MeOH extract of propolis afforded a new prenylated
chromane derivative, 3-hydroxy-2, 2-dimethyl-8-prenylchromane-6-propenoic acid (1), along …

Five phenolics isolated from licorice inhibited the cytopathic activity of a human
immmunodeficiency virus. One of these a coumarin derivative named licopyranocoumarin …

In a continuing search for anti-HIV compounds from plants of Vietnam, 19 compounds,
including a new triterpene, were isolated from an extract of the leaves and stem of Vatica …