A new lignan, (-)-berchemol, from Berchemia racemosa.
نویسندگان
چکیده
منابع مشابه
A new lignan glycoside from Juniperus rigida.
A new lignan glycoside, named juniperigiside (1) was isolated from the CHCl(3) soluble fraction of the MeOH extract of stems and leaves of Juniperus rigida S.et Z. Compound 1 was identified by 1D- and 2D-NMR spectroscopy as well as CD analysis as (2R,3S)-2,3-dihydro-7-methoxy-2-(4'-hydroxy-3'-methoxyphenyl)-3-hydroxymethyl-5-benzofuranpropanol 4'-O-(3-O-methyl)-α-L-rhamnopyranoside. Five known ...
متن کاملA new tetrahydrofuran lignan diglycoside from Viola tianshanica Maxim.
A new lignan glycoside, tianshanoside A (1), together with a known phenylpropanoid glycoside, syringin (2) and two known lignan glycosides, picraquassioside C (3), and aketrilignoside B (4), were isolated from the whole plant of Viola tianshanica Maxim. The structure of the new compound was elucidated by extensive NMR (1H, 13C, COSY, HSQC, HMBC and ROESY) and high resolution mass spectrometry a...
متن کاملNew lignan glycosides from Chinese medicinal plant, Sinopodophillum emodi.
Two new podophillotoxin glucosides, L-picropodophillotpxin 7'-O-(beta-D-glucopyranosyl-(1-->6)-beta-D-glucopyranoside) (2) and L-picropodophillotpxin 7'-O-beta-D-glucopyranoside (3), were isolated from Chinese medicinal plant, Sinopodophillum emodi, together with 4 known compounds, podophillotoxin (1), podorhizol 4'-O-beta-D-glucopyranoside (4), deoxypodophillotoxin (5), and dehydropodophilloto...
متن کاملFlavonoids from Symplocos racemosa.
A novel isoflavone glycoside, peseudobatigenin 7-O-[β-d-apiofuranosyl-(1''''→5''')-O-β-d-apiofuranosyl-(1'''→6'')]-β-d-glucopyranoside, namely sympracemoside (1), was isolated from the aerial parts of Symplocos racemosa along with 15 known flavonoids (2-16). Their structures were characterized by Q-TOF mass, optical rotation, UV, 1D and 2D-NMR spectroscopic data. Compounds 3, 9, 16 showed moder...
متن کاملSchizandrol A: a lignan from Schisandra chinensis
THE TITLE COMPOUND (SYSTEMATIC NAME 1,2,3,10,11,12-hexa-meth-oxy-6,7-dimethyl-5,6,7,8-tetra-hydro-dibenzo[a,c]cyclo-oc-ten-6-ol), C(24)H(32)O(7), has a dibenzocyclo-octa-diene skeleton. There are three mol-ecules in the asymmetric unit, which are related by a pseudo-translation in the direction of the c axis. Nevertheless, the three mol-ecules differ in the torsion angle of one of the meth-oxy ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Chemical and Pharmaceutical Bulletin
سال: 1989
ISSN: 0009-2363,1347-5223
DOI: 10.1248/cpb.37.3311