Abstract:
:D-Glycero-D-mannno-heptose 1β, 7-bisphosphate (HBPβ) is an important intermediate for constructing the core structure of Gram-negative bacterial lipopolysaccharides and was reported as a pathogen-associated molecular pattern (PAMP) that regulates immune responses. HBPβ with 3-O-amyl amine linker and its monophosphate derivative D-glycero-D-mannno-heptose 7-phosphate (HP) with 1α-amyl amine linker have been synthesized as candidates for immunity study of HBPβ. The O3-amyl amine linker of heptose was installed by dibutyltin oxide-mediated regioselective alkylation under fine-tuned protecting condition. The stereoselective installation of 1β-phosphate ester was achieved by NIS-mediated phosphorylation at low temperature. The strategy for installation of 3-O-amyl amine linker onto HBP derivative can be expanded to the syntheses of other conjugation-ready carbohydrates bearing anomeric phosphoester.
journal_name
Chin J Nat Medjournal_title
Chinese journal of natural medicinesauthors
Zou XP,Qin CJ,Hu J,Fu JJ,Tian GZ,Moscovitz O,Seeberger PH,Yin Jdoi
10.1016/S1875-5364(20)30075-3subject
Has Abstractpub_date
2020-08-01 00:00:00pages
628-632issue
8eissn
2095-6975issn
1875-5364pii
S1875-5364(20)30075-3journal_volume
18pub_type
杂志文章abstract::Twenty-one lignans including three new ones (1, 2 and 13) were isolated from Justicia procumbens. The chemical structures of the new lignans were determined by spectroscopic means including 1D and 2D NMR analysis. These compounds were evaluated for their cytotoxic and anti-HIV activities. The new secoisolariciresinol ...
journal_title:Chinese journal of natural medicines
pub_type: 杂志文章
doi:10.1016/S1875-5364(19)30117-7
更新日期:2019-12-01 00:00:00
abstract::The present study was designed to determine the relationships between the performance of ethanol precipitation and seven process parameters in the ethanol precipitation process of Re Du Ning Injections, including concentrate density, concentrate temperature, ethanol content, flow rate and stir rate in the addition of ...
journal_title:Chinese journal of natural medicines
pub_type: 杂志文章
doi:10.3724/SP.J.1009.2015.00073
更新日期:2016-01-01 00:00:00
abstract:AIM:To study the chemical constituents of the fruits of Illicium henryi. METHOD:Chromatographic separations on silica gel, Sephadex LH-20 gel and MCI gel were used to isolate the compounds. The structures were elucidated based on extensive spectroscopic data analyses. RESULTS:Seven compounds were obtained and their s...
journal_title:Chinese journal of natural medicines
pub_type: 杂志文章
doi:10.1016/S1875-5364(14)60074-1
更新日期:2014-06-01 00:00:00
abstract::Five new polyhydroxylated furostanol saponins were isolated from the roots and rhizomes of Tupistra chinensis, and their structures were determined as tupistrosides J-N (1-5), together with four known furostanol saponins (6-9), on the basis of physico-chemical properties and spectral analysis. Among them, compounds 3 ...
journal_title:Chinese journal of natural medicines
pub_type: 杂志文章
doi:10.1016/S1875-5364(19)30065-2
更新日期:2019-08-01 00:00:00
abstract::Atherosclerosis (AS) is a chronic inflammatory disease, the main causes of which include abnormal lipid metabolism, endothelial injury, physical and chemical injury, hemodynamic injury, genetic factors and so on. These causes can lead to inflammatory injury of blood vessels and local dysfunction. Bunao-Fuyuan decoctio...
journal_title:Chinese journal of natural medicines
pub_type: 杂志文章
doi:10.1016/S1875-5364(21)60004-3
更新日期:2021-01-01 00:00:00
abstract::Tripolinolate A (TLA) is recently identified as a new compound from a halophyte plant Tripolium vulgare and has been shown to have significant in vitro activity against the proliferation of colorectal cancer and glioma cells. This study was designed to further investigate the effects of TLA on the proliferation of hum...
journal_title:Chinese journal of natural medicines
pub_type: 杂志文章
doi:10.1016/S1875-5364(17)30085-7
更新日期:2017-08-01 00:00:00
abstract::The present study was designed to develop and evaluate glycyrrhetinic acid-graft-hyaluronic acid (HGA) conjugate for intravenous paclitaxel (PTX) delivery. Lyophilized PTX-loaded self-assembled HGA nanoparticles (PTX/HGAs) were prepared and characterized by dynamic light scattering measurements. Hemolysis test, intrav...
journal_title:Chinese journal of natural medicines
pub_type: 杂志文章
doi:10.1016/S1875-5364(15)30097-2
更新日期:2015-12-01 00:00:00
abstract::In our previous study, we have elucidated the chemical profile of YGS40, a fraction of Yi-Gan San (YGS), used for the treatment of Alzheimer's disease (AD). Oxidative stress-induced apoptosis is implicated in neurodegenerative disorders such as AD. The aim of the present study was to explore the protective effects of ...
journal_title:Chinese journal of natural medicines
pub_type: 杂志文章
doi:10.1016/S1875-5364(15)30037-6
更新日期:2015-06-01 00:00:00
abstract:AIM:To investigate the quinoline alkaloids from the roots of Dictamnus angustifolius G.Don ex Sweet (Rutaceae). METHOD:The quinoline alkaloids were isolated by various column chromatographic methods and their structures were elucidated on the basis of spectral analysis. RESULTS:A new quinoline alkaloid, 5-methoxylrob...
journal_title:Chinese journal of natural medicines
pub_type: 杂志文章
doi:10.1016/S1875-5364(14)60037-6
更新日期:2014-03-01 00:00:00
abstract:AIM:JS-38 (mitothiolore), a synthetic version of a metabolite isolated from Xenorhabdus sp., was evaluated for its anti-tumor and white blood cell (WBC) elevating activities. METHOD:These anti-proliferative activities were assessed in vitro using a panel of ten cell lines. The anti-tumor activities were tested in vivo...
journal_title:Chinese journal of natural medicines
pub_type: 杂志文章
doi:10.1016/S1875-5364(14)60117-5
更新日期:2014-10-01 00:00:00
abstract::The present study was designed to synthesize 2-Cyano-3, 12-dioxooleana-1, 9(11)-en-28-oate-13β, 28-olide (1), a lactone derivative of oleanolic acid (OA) and evaluate its anti-inflammatory activity. Compound 1 significantly diminished nitric oxide (NO) production and down-regulated the mRNA expression of iNOS, COX-2, ...
journal_title:Chinese journal of natural medicines
pub_type: 杂志文章
doi:10.1016/S1875-5364(17)30055-9
更新日期:2017-05-01 00:00:00
abstract::Two new steroidal saponins, named timosaponin P (1) and timosaponin Q (2), were isolated from the rhizome parts of Anemarrhena asphodeloides Bunge using various chromatographic methods. Their structures and absolute configurations were elucidated by a combination of spectroscopic and spectrometric data, including 1D, ...
journal_title:Chinese journal of natural medicines
pub_type: 杂志文章
doi:10.1016/S1875-5364(17)30038-9
更新日期:2017-03-01 00:00:00
abstract::Polysaccharides from Chinese medicines are attracting increasing attention to their wide range of valuable biological activities. As these polysaccharides are mostly from edible materials, their safety can be greatly ensured. Therefore, the Chinese medicine polysaccharides have been the focus of research and developme...
journal_title:Chinese journal of natural medicines
pub_type: 社论
doi:10.1016/S1875-5364(19)30107-4
更新日期:2019-12-01 00:00:00
abstract:AIM:The most important side effect of methotrexate (MTX) is mucositis. The purpose of this study was to evaluate the effect of turmeric extract on intestinal damage and oxidative stress in rats receiving methotrexate. METHODS:Experiments were performed on male Wistar albino rats divided into six groups. First group re...
journal_title:Chinese journal of natural medicines
pub_type: 杂志文章
doi:10.1016/S1875-5364(13)60087-4
更新日期:2013-09-01 00:00:00
abstract:AIM:To study the chemical constituents of the solid culture of the endophyte Phomopsis sp. IFB-E060 in Vatica mangachapoi. METHOD:Isolation and purification were performed through silica gel column chromatography, gel filtration over Sephadex LH-20, ODS column chromatography, and HPLC. Structures of the isolated compo...
journal_title:Chinese journal of natural medicines
pub_type: 杂志文章
doi:10.1016/S1875-5364(14)60080-7
更新日期:2014-07-01 00:00:00
abstract::The stem of Cynomorium songaricum is a traditional Chinese medicine reputed to have tonic effects. C. coccineum growing in northern Africa and the Mediterranean region is regarded in Arabian medical practice as the "treasure of drugs". The major constituents of Cynomorium plants have been revealed to be phenolic compo...
journal_title:Chinese journal of natural medicines
pub_type: 杂志文章,评审
doi:10.1016/S1875-5364(13)60049-7
更新日期:2013-07-01 00:00:00
abstract::The saponin ginsenoside Rk1 is a major compound isolated from ginseng. Ginsenoside Rk1 has been reported to have anti-inflammatory and anti-tumor properties and to be involved in the regulation of metabolism. However, the effect and mechanism of anti-inflammatory action of ginsenoside Rk1 has not been fully clarified....
journal_title:Chinese journal of natural medicines
pub_type: 杂志文章
doi:10.1016/S1875-5364(17)30106-1
更新日期:2017-10-01 00:00:00
abstract::Traditional Chinese medicines (TCMs) are in great demand all over the world, especially in the developing world, for primary health care due to their superior merits such as low cost, minimal side effects, better cultural acceptability, and compatibility with humans. However, Chinese medicines consist of several herbs...
journal_title:Chinese journal of natural medicines
pub_type: 杂志文章,评审
doi:10.1016/S1875-5364(13)60069-2
更新日期:2013-11-01 00:00:00
abstract::Polysaccharide from traditional Chinese herb, Saposhnikovia divaricata (Turcz.) Schischk. (SD) was extracted, fractionated and characterized in this work. Four fractions were prepared. Their molecular weight, monosaccharide compositions, linkage modes and structural properties were characterized with SEC-MALS-RI, HPAE...
journal_title:Chinese journal of natural medicines
pub_type: 杂志文章
doi:10.1016/S1875-5364(19)30096-2
更新日期:2019-10-01 00:00:00
abstract:AIM:To investigate the chemical constituents of the cultures of Laetiporus sulphureus (Bull.) Murrill. METHOD:Compounds were isolated and purified by various chromatographic techniques. The structure of the new compound was determined by interpretation of MS and 1D-, 2D-NMR spectroscopic data, while the known compound...
journal_title:Chinese journal of natural medicines
pub_type: 杂志文章
doi:10.1016/S1875-5364(14)60104-7
更新日期:2014-09-01 00:00:00
abstract::Ginsenoside Rh2 (Rh2) is one of the major bioactive ginsenosides in Panax ginseng. However, the oral bioavailability of Rh2 is low, with P-glycoprotein (P-gp) and CYP3A4 being reported to be the main factors. The purpose of the present study was to determine the enhancing effect of piperine on the oral bioavailability...
journal_title:Chinese journal of natural medicines
pub_type: 杂志文章
doi:10.1016/S1875-5364(18)30041-4
更新日期:2018-02-01 00:00:00
abstract::A new γ-alkylated-γ-butyrolactone, named melongenolide A (1), along with nine known compounds were obtained from the roots of Solanum melongena, and their structures were identified as melongenolide A (1), (+)-syringaresinol (2), (+)-lyoniresinol (3), 5,5'-dimethoxy lariciresinol (4), (+)-(7R,8R)-4-hydroxy-3,3',5'-tri...
journal_title:Chinese journal of natural medicines
pub_type: 杂志文章
doi:10.1016/S1875-5364(15)30068-6
更新日期:2015-09-01 00:00:00
abstract::Si-Miao-Wan (SMW), a tradiational Chinese medicinal formula consisting of Atractylodis Rhizoma, Phellodendri Chinensis Cortex, Coicis Semen, and Achyranthis Bidentatae Radix, has been used for the treatment of gout and gouty arthritis for many years. In the present study, a liquid chromatography quadrupole-time-of-fli...
journal_title:Chinese journal of natural medicines
pub_type: 杂志文章
doi:10.1016/S1875-5364(17)30082-1
更新日期:2017-07-01 00:00:00
abstract::The anti-bacterial activities of three types of di-O-caffeoylquinic acids (diCQAs) in Lonicera japonica flowers, a traditional Chinese medicine (TCM), on Bacillus shigae growth were investigated and compared by microcalorimetry. The three types of diCQAs were 3, 4-di-O-caffeoylquinic acid (3, 4-diCQA), 3, 5-di-O-caffe...
journal_title:Chinese journal of natural medicines
pub_type: 杂志文章
doi:10.1016/S1875-5364(14)60017-0
更新日期:2014-02-01 00:00:00
abstract::A new ursane-type triterpenoid saponin, 2α,3α,24-trihydroxyurs-12,20(30)-dien-28-oic acid β-D-glucopyranosyl ester (1), together with six known triterpenoid saponins, was isolated and characterized from the aerial parts of Clematoclethra scandens subsp. actinidioides. ...
journal_title:Chinese journal of natural medicines
pub_type: 杂志文章
doi:10.1016/S1875-5364(15)60008-5
更新日期:2015-01-01 00:00:00
abstract::Hybanthus enneaspermus (L.) F. Muell belonging to the family Violaceae, popularly known as Ratanpurus (Hindi) is a herb or a shrub distributed in the tropical and subtropical regions of the world. In the Ayurvedic literature, the plant is reported to cure conditions of "Kapha" and "Pitta", urinary calculi, strangury, ...
journal_title:Chinese journal of natural medicines
pub_type: 杂志文章,评审
doi:10.1016/S1875-5364(13)60017-5
更新日期:2013-05-01 00:00:00
abstract::Modified Da-chai-hu Decoction (MDD), a traditional Chinese medicinal formulation, which was empirically generated from Da-chai-hu decoction, has been utilized to treat severe acute pancreatitis (SAP) for decades. The aim of the present study was to explore its potential organprotective mechanism in SAP. In the present...
journal_title:Chinese journal of natural medicines
pub_type: 杂志文章
doi:10.1016/S1875-5364(19)30041-X
更新日期:2019-05-20 00:00:00
abstract::In the present report, we review the technical guidelines and principles on impurity research and control for antibiotics established by various agencies, including the International Conference of Harmonization (ICH), the US Food and Drug Administration (FDA), the European Medicines Agency (EMA) and the China Food and...
journal_title:Chinese journal of natural medicines
pub_type: 杂志文章
doi:10.1016/S1875-5364(15)30044-3
更新日期:2015-07-01 00:00:00
abstract::Saposhnikoviae divaricata (Turcz.) Schischk (SD) is a traditional Chinese herb commonly used to treat clinical conditions such as rheumatism and allergic rhinitis. This review article evaluates a collection of works on in vitro and biochemical studies of SD. The discourse on the diverse class of chromones and coumarin...
journal_title:Chinese journal of natural medicines
pub_type: 杂志文章,评审
doi:10.1016/S1875-5364(17)30042-0
更新日期:2017-04-01 00:00:00
abstract::Garcinia, a kind of dry resin secreted by Garcinia hanburyi Hook. F. G., is a traditional Chinese medicine with various biological functions such as detoxification, anti-inflammatory, and anthelmintic activities. Recent studies suggest that garcinia has potential anticancer activity. Increasing evidences indicate that...
journal_title:Chinese journal of natural medicines
pub_type: 杂志文章,评审
doi:10.1016/S1875-5364(18)30103-1
更新日期:2018-09-01 00:00:00