Alkaloids from Fissistigma latifolium (Dunal) Merr.
نویسندگان
چکیده
A phytochemical study of the bark of Fissistigma latifolium (Annonaceae) yielded a new aporphine alkaloid, (-)-N-methylguattescidine (1), and eight known alkaloids: liriodenine (2), oxoxylopine (3), (-)-asimilobine (4), dimethyltryptamine (5), (-)-remerine (6), (-)-anonaine (7), columbamine (8) and lysicamine (9). The compounds were isolated using various chromatographic methods and structural elucidation was accomplished by means of spectroscopic methods, notably 1D-NMR ((1)H, (13)C, DEPT), 2D-NMR (COSY, HMQC, HMBC), UV, IR and MS.
منابع مشابه
New flavan and benzil isolated from Fissistigma latifolium.
Further investigation of the methanolic extract of Fissistigma latifolium resulted in two new compounds whose structures were assigned as 2,5,6,7-tetramethoxyflavan (1) and 2'-hydroxy-4',5',6'-trimethoxybenzil (2). These two compounds were determined on the basis of chemical and spectroscopic evidences. Compound 2 is the first report of benzil from Fissistigma species. 2,5,6,7-Tetramethoxyflava...
متن کاملAlkaloids and Anthraquinones from Malaysian Flora
The flora of Malaysia is one of the richest flora in the world due to the constantly warm and uniformly humid climate. Malaysia is listed as 12th most diverse nation (Abd Aziz, 2003) in the world and mainly covered by tropical rainsforests. Tropical rainforests cover only 12% of earth’s land area; however they constitute about 50% to 90% of world species. At least 25% of all modern drugs origin...
متن کاملGC-MS of Crinum latifolium L. alkaloids.
A GC-MS analysis of underivatized alkaloids from leaves of Crinum latifolium was performed. From the identified 15 alkaloids, 9 were found for the first time in this plant. Almost all alkaloids belonged to the crinane type. Substantial changes in the methylation and oxidation pattern of the alkaloids at and after flowering were observed.
متن کاملPhytochemical Analysis and Proximate Composition of the Leaves of Gongronema latifolium
The phytochemical and proximate compositions of the dried leaves of Gongronema latifolium were analyzed using the methods of Association of Official Analytical Chemists (A.O.A.C). The results of proximate composition showed that the leaves contained moisture (11.13±0.01%), crude protein (33.60±0.00%), carbohydrate (38.55±0.00%), crude fat (3.41±0.01%), crude fibre (4.20±0.01%), ash (9.11±0.01%)...
متن کاملPhytochemical Screening and Hypoglycemic Effect of Methanolic Extract of Gongronema Latifolium Leaf in Alloxan Induced Diabetic Rats
Department of Biochemistry Federal University of Technology, Minna, Nigeria. Corresponding Author: Saidu, A.N __________________________________________________________________________________________ Abstract The phytochemical screening and hypoglycemic effect of methanolic extract of Gongronema latifolium leaf in alloxan induced diabetic rats were investigated. The methanolic extract of Gongr...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Molecules
دوره 15 7 شماره
صفحات -
تاریخ انتشار 2010