A new anti-HIV alkaloid, drymaritin, and a new C-glycoside flavonoid, diandraflavone, from Drymaria diandra.
A novel anti-HIV alkaloid, drymaritin (1), and a new C-glycoside flavonoid, diandraflavone (2), along with eight known compounds, torosaflavone A, isovitexin, spinasterol beta-d-glycoside, p-hydroxybenzoic acid, p-hydroxybenzaldehyde, cis-p-coumarate, methyl 5-hydroxy-4-oxopentanoate, and glycerol-alpha-lignocerate, were isolated from Drymaria diandra. Drymaritin (1) exhibited anti-HIV effects in H9 lymphocytes with an EC(50) value of 0.699 microg/mL and a TI of 20.6. Compound 2 showed significantly selective inhibition on superoxide anion generation from human neutrophils stimulated by fMLP/CB with an IC(50) value of 10.0 microg/mL.
Graduate Institute of Natural Products, Kaohsiung Medical University, Kaohsiung 807, Taiwan, Republic of China.
Pei-Wen
PW
Hsieh
Fang-Rong
FR
Chang
Kuo-Hsiung
KH
Lee
Tsong-Long
TL
Hwang
Sue-Ming
SM
Chang
Yang-Chang
YC
Wu
D000470:Alkaloids / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D019380:Anti-HIV Agents / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D002243:Carbolines / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D029748:Caryophyllaceae / Q000737:chemistry*; D005419:Flavonoids / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D006801:Humans; D020128:Inhibitory Concentration 50; D008214:Lymphocytes / Q000187:drug effects; D008519:Medicine, Traditional; D009504:Neutrophils / Q000187:drug effects; D019906:Nuclear Magnetic Resonance, Biomolecular; D010946:Plants, Medicinal / Q000737:chemistry*; D013624:Taiwan
D000470:Alkaloids; D019380:Anti-HIV Agents; D002243:Carbolines; D005419:Flavonoids; C489107:diandraflavone; C489105:drymaritin