红皮木姜子的化学成分研究(Ⅱ)

Studies on the chemical constituents of Litsea pedunculata(Ⅱ)

对滇产红皮木姜子(Litsea pedunculata)乙酸乙酯和正丁醇萃取部分的化学成分进行研究.采用硅胶柱层析、重结晶等分离手段从中分离纯化得到10个化合物,通过现代波谱技术和理化常数测定鉴定了它们的结构,其中7个为异喹啉生物碱:actinodaphnine(1),cassythicine(2),litseglutine A(3),boldine(4),norboldine(5),juziphin(6),reticuline(7);同时还得到(+)-8,8'-epiaristo-ligone(8),山奈酚(kaempferol,9)及5α,8α-epidioxyergosta-6,22-dien-3β-ol(10).以上化合物均为首次从该植物中分离得到.

The chemical constituents of ethyl ester extracts and n - butanol extracts from Litsea pedunculata were studied, and ten compounds were isolated by silica column chromatography and recrystallization. The struc- tures of these compounds were elucidated as actinodaphnine （ 1 ）, cassythicine （ 2 ）, litseglutine A （ 3 ）, boldine （4） , norboldine （ 5 ）, juziphin （ 6 ）, reticuline （ 7 ）, （ ＋ ） - 8,8＇ - epiaristo - ligone （ 8 ）, kaempferol （ 9 ） and 5 α, 8α- epidioxyergosta- 6,22- dien- 3β- ol（10） by physical and chemical evidences and spectral methods. All the compounds were isolated from this plant for the first time.