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Five kinds of carboxymethyl sulfochitosans with different regions such as N-carboxymethyl-O-sulfochitosan, O-carboxymeth......
Proportions of acetyl-histone-positive hepatocytes indicate the functional status and prognosis of c
AIM:To investigate whether the proportions of acetylhistone-positive hepatocytes could be used as markers of deteriorati......
Thiopurine metabolites variations during co-treatment with aminosalicylates for inflammatory bowel d
AIM: To evaluate variation of the concentration of thiopurine metabolites after 5-aminosalicylate(5-ASA) interruption an......
<正> Parasite fly Blepharipa tibialis Chao is one of the pests parasitized in larvae of Antherase pernyi Guer. Organopho......
(3S,4R)-Bengamide E(2) was synthesized starting from D-glucono-δ-lactone(3) and the key deoxygenation step from 13 to 1......
The multicomponent condensation of an aryl aldehyde,acetyl chloride,acetonitrile,and enolizable ketone as one-pot synthe......
Two new steroidal glycosides named cyanoauriculoside A(1) and B(2),have been isolated from the roots of Cynanchumauricul......
The title compound N-(tert-butyl)-N’-(2-(4-chlorophenyl)acetyl)-5-methyl-1,2,3-thiadiazole-4-carbohydrazide (C16H19ClN4......
Fabrication of N-acetyl-L-cysteine-capped CdSe-polyelectrolytes @ Hydroxyapatite Composite Microsphe
N-Acetyl-L-cysteine-capped CdSe—polyelectrolytes @ hydroxyapatite(NAC—CdSe—PEs@HA) composite microspheres were fabric......
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Synthesis and characterization of acetylated sept-D-glucopyranose carbamate as an oligosaccharide do
An oligosaccharide donor, acetylated sept-D-glucopyranose tetradecyl carbamate, was designed and synthesized. This compo......
In order to develop a novel kidney-targeted drug delivery system,a small molecular carrier(2-deoxy-2-aminodiglucose) was......
A convenient and efficient protocol for the synthesis of unnatural N-glycosyl a-amino acids was developed.Condensation o......
The new title compound 4-chloro-N-(2-(2-nitrophenyl)acetoxy)-N-(m-tolyl)benzamide(C22H17ClN2O5, Mr = 424.82) has been sy......
Effects of pH and polarity on the excited states of norfloxacin and its 4′-N-acetyl derivative:a ste
The properties of norfloxacin(NFX)and its 4?-N-acetyl derivative(ANFX)are investigated in different pH aqueous solutions......
Two new phenylethanoid glycosides,himalosides A(1) and B(2),were isolated from the whole plant of Boschniakia himalaica,......
Lacosamide was prepared by chemical method coupled with enzymatic method. N-Acetyl-D, L-3-methoxy-alanine, derived from ......
Two new phenylpropanoid glycosides,9-O-[6-O-acetyl-β-D-glucopyranosyl]-4-hydroxycinnamic acid(1) and 8-O-β-D-glucopyra......
[Objective] This study aimed to analyze the deprotection of acetyl group on amino group.[Method] A simple,convenient one......
Biological activity of konjac glucomannan is closely related to its structure,in particular to its high-level structure.......
Synthesis and Crystal Structure of (R)-1-acetyl-6-(2-chloro-4-fluorophenyl)-4-methyl-N-((R)-1-phenyl
The crystal structure of the title compound (C28H22ClF4N3O2 , Mr = 543.14) was determined by single-crystal X-ray diffra......
[Objective]To provide a theoretical basis for the development of curcumin by structural modification.[Methods]Curcumin r......
2013年6月15日,据欧盟网站消息,欧盟发布(EU)No545/2013号委员会条例,修订了(EC)No1334/2008号食用香精香料法规,禁止3-乙酰基-2,5......
The compound N-phenyl-N-[(o-nitrophenylacetyl)oxy]benzamide(C21H16N2O5,Mr=376)has been synthesized by the reaction of N-......
应用HPLC-ESI-IT-TOF-MS技术对玄参中化学成分进行定性分析。采用Kromasil 100-5 C18色谱柱(4.6 mm×250mm,5μm),以乙腈-0.1%甲酸......
A Pd(Ⅱ)-catalyzed ortho-olefination of aromatic acetic esters is described which features with an excellent funcitional......
Superior ligand for Pd(Ⅱ)-catalyzed enantioselective arylation of C(sp~3)-H bonds:chiral acetyl prot
Enantioselective functionalization of prochiral C-H bonds is a highly attractive strategy for the construction of chiral......
Synthesis,Crystal Structure and Neuroprotection of Methyl 2-((4-(2-(2-Methylphenoxy)acetyl)-piperazi
A new phenoxyacetamide derivative, methyl 2-((4-(2-(2-methylphenoxy)acetyl)piperazin-1-yl)methyl)benzoate(C22H26N2O4, Mr......
An efficient one-pot three-component synthesis and antimicrobial evaluation of tetra substituted thi
A convenient one-pot three-component method for the preparation of tetra-substituted thiophene derivatives has been deve......
目的探讨霉酚酸酯(mycophenolate mofetil,MMF)抑制转化生长因子-β(transforming growth factor-β,TGF-β)在肺成纤维细胞WI26中......
In this paper we investigated the stability of konjac glucomnnan(KGM) chain hydrogen networks based on the quantum spin ......
对植物内生真菌团青霉的大米发酵产物进行化学成分研究,从其乙酸乙酯的提取物中分离得到9个已知化合物。通过波谱手段、理化常数以......
Helicobacter pylori(H.pylori)is a Gram negative pathogen that selectively colonizes the human gastric epithelium.Over 50......
The phytoalexin elicitor β-(1→3)-branched β-(1→6)-linkedglucohexatose has been regio- and stereospecifically synthe......
Lauryl glycoside of β-D-Glcp-(1→3)-[β-D-Glcp-(1→6)-]α-D-Glcp-(1→3)-β-D-Glcp-(1→3)-[β-D-Glcp-(1→6)-]α-D-Glcp-(......
Synthesis of sugar phosphate derivatives by means of phosphite triester method is de-scribed.Seven glucose phosphotries......
Studies on the structures and syntheses of arteannuin and related compounds——ⅩⅥ.Synthesis of arteann
Arteannuin E was synthesized from methyl β-epoxy arteannuinate by treatment withformic acid followed by hydrolysis and......
CRYSTAL STRUCTURE OF THE N-[4-ACETYL-1-(2-CYCLOHEXYLETHYL)-4-PIPERIDINYL]-N-PHENYLPROPANAMIDE(1509)O
The crystal structure of N-[4-acetyl-l-(2-cyclohexyl-ethyl)-4-piperidinyl]-N-phenylpropanamide oxalate was determined b......
The spin delocalization substituent parameters δ——3.The spin-delocalizing abilities of the acetyl an
Four substituted α,β,β-trifluorostyrenes (TFSs) namely,p-trimethylsilyltrifluoro-styrene (1),p-acetyltrifluorostyren......
This paper reports two novel facile approaches to the total synthesis of(±)-linalool.One of them consisted of a three-......
The blood anticoagulation of rare earthcompounds has been studied by Chemistry De-partment of Lanzhou University.The ef......
CHEMOTHERAPEUTIC POLYMERS Ⅻ.SYNTHESIS AND ANTITUMOR ACTIVITY OF POLYAMIDES CONTAINING 5-FLUOROURACIL
Six polyamides with pendant 5-fluorouracil group were synthesized by the polycondensation ofdi-p-nitrophenyl N-(5-fluor......
A new 4-acetyl pyrazolone chelating agent C_(19)H_(16)N_2O_3 Mr=320. 348 has been synthesized. The molecular compositio......
Cyanobacteria attracted much attention recently because of their secondary metaboliteswith potent biological activities ......
Five new Liquid Crystals with sulfonate units were synthesized. And they were detendned by FT-IR and MS. The points of p......
The protected apiose-containing disaccharide, benzyl O-(2,3, 3’-tri-O-acetyl-β-D-apiofuranosyl)-( 1→3)-2, 4-di-O-ben......
An α-4(20)-epoxy-5α-hydroxytaxinine B 1, when treated with diethylaluminum chloride, underwent reactions involving int......
Crystal and Molecular Structure of 1-Phenoxy(α-methyl)acetyl-2-diethylamino-3-phenyl-1,3,2-diazaphos
The crystal of the title compound (C 21H 26N 3O 3PS, M r =431.48) belongs to the monoclinic system space group w......
