Abstract:
:From the quaternary alkaloidal fraction of the dried tubers of Stephania cepharantha, two new isoquinoline alkaloids, stecepharine and tetradehydroreticuline have been isolated along with the known compounds, magnoflorine, menisperine, steponine, cyclanoline, oblongine, cis-N-methylcapaurine and 2'-N-methylisotetrandrine. cis-N-Methylcapaurine (=9-O-methylstecepharine) was isolated as a natural product for the first time. Their structures were determined on the basis of spectroscopic evidence.
journal_name
Chem Pharm Bull (Tokyo)journal_title
Chemical & pharmaceutical bulletinauthors
Tanahashi T,Su U,Nagakura N,Nayeshiro Hdoi
10.1248/cpb.48.370subject
Has Abstractpub_date
2000-03-01 00:00:00pages
370-3issue
3eissn
0009-2363issn
1347-5223journal_volume
48pub_type
杂志文章abstract::We describe the synthesis and biological evaluation of N-aryl-5-aryloxazol-2-amine derivatives that are able to inhibit 5-lipoxygenase (5-LOX), a key enzyme of leukotriene synthesis, for the treatment of inflammation-related diseases including asthma and rheumatoid arthritis. A novel structural moiety containing oxazo...
journal_title:Chemical & pharmaceutical bulletin
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doi:10.1248/cpb.c15-00033
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journal_title:Chemical & pharmaceutical bulletin
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journal_title:Chemical & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/cpb.42.333
更新日期:1994-02-01 00:00:00
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journal_title:Chemical & pharmaceutical bulletin
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更新日期:2012-01-01 00:00:00
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journal_title:Chemical & pharmaceutical bulletin
pub_type: 杂志文章
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journal_title:Chemical & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/cpb.c13-00441
更新日期:2013-01-01 00:00:00
abstract::The latex of Euphorbia nivulia afforded three new ingol diterpenes, 3-acetyl-8-methoxyl-7-angolyl-12-hydroxylingol (7), 3,12-diacetyl-7-hydroxy-8-methoxylingol (8), and 3,12-diacetyl-7-angolyl-8-hydroxylingol (9) along with five known ingol diterpenes 2-6 and a known triterpene cyclonivulinol (1). Their structures wer...
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journal_title:Chemical & pharmaceutical bulletin
pub_type: 杂志文章
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journal_title:Chemical & pharmaceutical bulletin
pub_type: 杂志文章
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pub_type: 杂志文章
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journal_title:Chemical & pharmaceutical bulletin
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更新日期:2016-01-01 00:00:00
abstract::Silver loaded zeolite (Ag-Z) was previously found to have effective bactericidal activity against Escherichia coli. To understand the mechanisms of bactericidal activity of Ag-Z, role of light irradiation was focused and investigated in this study. In this study, we focused on light irradiation. Antibacterial assay an...
journal_title:Chemical & pharmaceutical bulletin
pub_type: 杂志文章
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更新日期:2008-05-01 00:00:00
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journal_title:Chemical & pharmaceutical bulletin
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更新日期:2009-10-01 00:00:00
abstract::A series of dibenzofurans were efficiently and conveniently synthesized via one-pot consecutive C(sp(2))-O bond formation reaction (SNAr) in the presence of anhydrous K(2)CO(3), followed by C(sp(2))-C(sp(2)) bond formation reaction (intramolecular palladium-catalyzed aryl-aryl coupling reaction) between aryl halides a...
journal_title:Chemical & pharmaceutical bulletin
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journal_title:Chemical & pharmaceutical bulletin
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journal_title:Chemical & pharmaceutical bulletin
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abstract::One new guaiane-type sesquiterpene glycoside, 2'-O-E-caffeoyl-8alpha-hydroxy-11alpha,13-dihydro-3beta-O-beta-D-glucozaluzanin C (1), was isolated from the whole herb of Ainsliaea fragrans (Compositae), together with five known sesquiterpene lactones: 8alpha-hydroxy-11alpha,13-dihydro-3beta-O-beta-D-glucozaluzanin C (2...
journal_title:Chemical & pharmaceutical bulletin
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journal_title:Chemical & pharmaceutical bulletin
pub_type: 杂志文章
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更新日期:1992-09-01 00:00:00
abstract::Seventeen saponins isolated from the root of Pulsatilla koreana were examined for their in vitro cytotoxic activity against the human solid cancer cell lines, A-549, SK-OV-3, SK-MEL-2, and HCT15, using the SRB assay method, and their in vivo antitumor activity using BDF1 mice bearing Lewis lung carcinoma (LLC). The sa...
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pub_type: 杂志文章
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更新日期:2005-11-01 00:00:00
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journal_title:Chemical & pharmaceutical bulletin
pub_type: 杂志文章
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