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1.
Chaipech S Morikawa T Ninomiya K Yoshikawa M Pongpiriyadacha Y Hayakawa T Muraoka O 《Chemical & pharmaceutical bulletin》2012,60(1):62-69
Two new phenolic glycosides, kaempferiaosides A and B were isolated from the rhizomes of Kaempferia parviflora (Zingiberaceae) together with 24 known compounds. Their structures including absolute stereochemistry were elucidated on the basis of chemical and spectroscopic evidence. Among the isolates, 5,3'-dihydroxy-3,7,4'-trimethoxyflavone showed higher activity than silybin, a commercial hepatoprotective agent. 相似文献
2.
Two new labdane diterpene glycosides, named aquosides A and B, and a new megastigmane glycoside, named aquoside C, have been isolated from the air-dried aerial parts of Aquilegia hybrida together with three known compounds comprising a phenolic glycoside and two flavone C-glycosides. Their structures were determined on the basis of spectroscopic data and chemical evidence. 相似文献
3.
Otsuka H Zhong XN Hirata E Shinzato T Takeda Y 《Chemical & pharmaceutical bulletin》2001,49(9):1093-1097
Eight megastigmane glycosides were isolated from the leaves of Myrsine seguinii collected in Okinawa. Three of them were found to be known compounds, i.e., ampelopsisionoside, alangionoside J, and linarionoside A. The structures of the new megastigmane glycosides were elucidated from the spectroscopic data and their absolute stereochemistries were determined in detail using a modified Mosher's method. 相似文献
4.
A novel phenylpropanoid glycosides and a new derivation of phenolic glycoside from Paris Polyphylla var. yunnanensis 总被引:1,自引:0,他引:1
Yu Wang Wen Yuan Gao Tie Jun Zhang Yuan Qiang Guo 《中国化学快报》2007,18(5):548-550
A novel phenylpropanoid glycosides 1, named parispolyside F, and a novel derivation of phenolic glycoside 2, named parispolyside G, as well as two known flavonoid glycosides were isolated from the rhizome of Paris polyphylla var. yunnanensis. Their structures were elucidated by spectroscopic methods. 相似文献
5.
From the leaves of Alangium paltanifolium var. platanifolium, collected in Fukuoka Prefecture, twelve further megastigmane glycosides were isolated. Seven of them, named platanionosides D-J (1-7), were found to be new compounds. Their structures were elucidated from spectroscopic evidence and their absolute structures were determined from beta-D-glucosylation-induced shift trends of 13C-NMR and by application of a modified Mosher's method. 相似文献
6.
Yi‐Lei Chen Chang‐Heng Tan Jun‐Jie Tan Xue‐Mei Zhao Shan‐Hao Jiang Da‐Yuan Zhu 《Helvetica chimica acta》2009,92(12):2802-2807
Two new diterpenoid glucosides, clerodendranthusides B and C ( 1 and 2 , resp.), together with 16 known compounds, comprising four lignans, five miscellaneous phenylpropanoids, two flavonoids, one sesquiterpenoid glycoside, two triterpenoid glycosides, one megastigmane, as well as one anthraquinone, were isolated from the 50% EtOH extract of the whole plants of Clerodendrathus spicatus. Their structures were elucidated by chemical and spectroscopic methods. 相似文献
7.
Two new acylated iridoid glucosides were isolated from the aerial parts of Paederia scandens along with six known iridoid glucosides. The structures of two new compounds were elucidated as 6'-O-E-feruloylmonotropein (1) and 10-O-E-feruloylmonotropein (2) by spectroscopic methods. 相似文献
8.
Staphylionosides A-K: megastigmane glucosides from the leaves of Staphylea bumalda DC 总被引:1,自引:0,他引:1
Chemical investigation of leaves of Staphylea bumalda DC., collected in the suburbs of Hiroshima City, afforded 11 new megastigmane glucosides, named staphylionosides A-K (3-13), along with two known megastigmane glucosides (1, 2). The relative structures were elucidated from spectroscopic evidence, and the absolute structures of the aglycones were determined by means of the combination of beta-D-glucosylation-induced shift-trends and the modified Mosher's method. 相似文献
9.
Two new iridoid glycosides designated as senburiside III (2) and senburiside IV (3), together with one known iridoid glycoside senburiside I (1) and three known secoiridoid glucosides swertiamarin (4), gentiopicroside (5) and sweroside (6), were isolated from the whole plant of Swertia franchetiana. The structures of the two new compounds were elucidated by spectroscopic methods. 相似文献
10.
Kasajima N Ito H Hatano T Yoshida T Kaneda M 《Chemical & pharmaceutical bulletin》2005,53(10):1345-1347
Three new acylated flavonol glycosides, cypellogins A (1), B (2) and C (3), along with eight known phenolic compounds, were isolated from the dried leaves of Eucalyptus cypellocarpa, and their structures were elucidated using spectroscopic methods, including 2D NMR experiments and chemical evidence. 相似文献
11.
Qiu‐Ping Zhang Bin‐Feng Zhang Gui‐Xin Chou Zheng‐Tao Wang 《Helvetica chimica acta》2011,94(6):1130-1138
Two new megastigmane glycosides, eleganosides A and B ( 1 and 3 , resp.), and one new iridoid glycoside, gouwenoside A ( 4 ), together with two known compounds, foliasalacioside B1 ( 2 ) and loganin ( 5 ), were isolated from the aerial parts of Gelsemium elegans (Gardn. et Champ.) Benth. (Loganiaceae). Their structures were elucidated by spectroscopic methods including 1D‐ and 2D‐NMR techniques. The absolute configuration of 1 was determined by CD spectroscopy. 相似文献
12.
Two new megastigmane glucosides, called excoecariosides A and B were isolated from the leaves of a medicinal Vietnamese plant, Excoecaria cochinchinensis LOUR. var. cochinchinensis (Euphorbiaceae) together with seven known compounds. Their structures were elucidated by spectroscopic analyses and chemical reactions including the modified Mosher's method. 相似文献
13.
Chemical investigation of the 1-BuOH soluble fraction of the dried fruits of Myrsine seguinii (Myrsinaceae) led to the isolation of five new glycosides, named myrseguinosides A-E (1-5), together with eight known compounds (6-13). The absolute structures of the new glycosides were elucidated by spectroscopic and chemical analyses to be a monoterpene glucoside (1), two flavonol glycosides (2, 3), and two oleanane-type triterpene saponins (4, 5). Myrseguinosides B (2), D (4), and E (5) exhibited 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical-scavenging activity and growth inhibitory activity toward human cancer cells, respectively. 相似文献
14.
Zhao Z Matsunami K Otsuka H Shinzato T Takeda Y Kawahata M Yamaguchi K 《Chemical & pharmaceutical bulletin》2010,58(10):1343-1348
From the 1-BuOH-soluble fraction of a MeOH extract of leaves of Schefflera arboricola, collected in Okinawa, six new lupane glucosides, named schefflerins A-F (1-6) and one new dammarane glucoside, named schefflerin G (7), were isolated together with three known compounds, citroside A (8), and oleanane saponins, oleanolic acid (9) and echinocystic acid (10) 3-O-α-L-rhamnopyranosyl(1→4')-O-β-D-glucuronopynosides. Their structures were elucidated through a combination of spectroscopic analyses and the structure of schefflerin F (6) was determined by X-ray crystallographic method using SPring-8 synchrotron radiation. 相似文献
15.
Two new secoiridoid glycosides, swertiajaposide A (1) and swertiajaposide B (2), a new unsaturated alco-hol glycoside, 3-butenyl 6'-O-alpha-L-arabinopyranosyl-beta-D-glucopyranoside (3), and a new lignan glycoside, 7R,7'R,8S,8'S-(+)-neo-olivil-4-O-beta-D-glucopyranoside (4), were isolated together with six known compounds from the whole plants of Swertia japonica Makino. The structures of the new compounds were elucidated on the basis of chemical and spectroscopic evidence. 相似文献
16.
Ono M Takamura C Sugita F Masuoka C Yoshimitsu H Ikeda T Nohara T 《Chemical & pharmaceutical bulletin》2007,55(4):551-556
Two new steroid glycosides, named trikamsterosides A and B, and a new sesquiterpenoid glycoside named trikamsesuquiside A were isolated from the underground parts of Trillium kamtschaticum PALL. along with 18 known compounds comprising 12 steroids, one sesquiterpenoid glycoside, one phenylpropanoid, one flavonoid glycoside, and three phenylpropanoid sucrose esters. Their chemical structures were determined on the basis of spectroscopic data and chemical evidence. Among them, one phenylpropanoid sucrose ester showed almost the same radical-scavenging effect on 1,1-diphenyl-2-picrylhydrazyl as that of alpha-tocopherol. 相似文献
17.
Two new phenolic glycosides, scolochinenosides A and B ( 1 and 2 ), and a new flavonoid glycoside, scoloside A ( 3 ), were isolated from the leaves of Scolopia chinensis (Lour .) Clos , together with eight known compounds. The structures of the new compounds were established on the basis of chemical and spectroscopic evidences. 相似文献
18.
Three new phenolic glycosides, clemomandshuricosides A–C ( 1 – 3 , resp.) and two new D ‐ribono‐γ‐lactone derivatives, 4 and 5 , were isolated from the roots and rhizomes of Clematis mandshurica Rupr ., together with six known compounds. Their structures were elucidated on the basis of chemical, physicochemical, and spectroscopic evidence. 相似文献
19.
Kim IH Kaneko N Uchiyama N Lee JE Takeya K Kawahara N Goda Y 《Chemical & pharmaceutical bulletin》2006,54(2):275-277
Two new phenylpropanoid glycosides, scrophulosides A (1) and B (2), were isolated from the rhizomes of Neopicrorhiza scrophulariiflora (Scrophulariaceae), along with two known compounds, androsin (3) and picroside I. Their structures were elucidated on the basis of both chemical and spectroscopic data. 相似文献
20.
Otsuka H Shitamoto J He DH Matsunami K Shinzato T Aramoto M Takeda Y Kanchanapoom T 《Chemical & pharmaceutical bulletin》2007,55(11):1600-1605
Further extensive isolation work on the 1-BuOH-soluble fraction of a MeOH extract of Tricalysia dubia afforded five new ent-kaurane glucosides (4-8) and one new labdane glucoside (9), together with a known megastigmane glucoside, sammangaoside B (1), and monoterpene glucosides (2, 3). The structures of the new compounds were elucidated by analyses of one- and two-dimensional NMR spectroscopic data. The absolute configuration of the 9-position of sammangaoside B was revised to S and its total stereochemistry was established by the modified Mosher's method. 相似文献