112-76-5Relevant articles and documents
Three labdane-type diterpenes from the bark of Juniperus formosana HAY. var. concolor HAY.
Kuo, Yueh-Hsiung,Yu, Ming-Tsang
, p. 1242 - 1244 (1996)
Three new labdane-type diterpenes, (13S)-15-hydroxylabd-8(17)-en-19-oic acid, (13S)-15-acetoxylabd-8(17)-en-19-oic acid, and (13S)-15- octadecanoyloxylabd-8(17)-en-19-oic acid, together with one known compound, enantio-oliveric acid, were found from the hark of Juniperus formosana HAY. var. concolor HAY. Their structures were elucidated on the basis of spectral data and chemical transformation.
PHOTOLYSIS OF α-DIAZO CARBONYL COMPOUNDS IN THE PRESENCE OF IMIDAZOLE. A NEW METHOD FOR THE PREPARATION OF NOR OLEFINS AND ITS APPLICATION TO BILE ACID SIDE CHAIN DEGRADATION
Pellicciari, Roberto,Natalini, Benedetto,Cecchetti, Sergio,Santucci, Sergio
, p. 3103 - 3106 (1984)
α-Diazomethyl ketones derived from carboxylic acids are photolyzed in the presence of imidazole to give the corresponding nor olefins or, in the case of aryl diazo ketones, the corresponding, stable imidazolides.The application of the method to a novel degradation of bile acid side chain is reported.
Molecular assembly and photophysical properties of quaternary molecular hybrid materials with chemical bond
Yan, Bing,Qian, Kai,Lu
, p. 1481 - 1490 (2007)
In this paper, two long chain aliphatic carboxylic acids (oleic acid [OLA] and stearic acid [STA]) are modified with cross-linking molecules (N-2-aminoethyl-3-aminopropyl-methyl-dimethoxylsiliane, (AEAPMMS, H 2N(CH2)2HN(CH2)3SiCH 3(OCH3)2 and 3-aminopropyl-methyl- diethoxylsiliane (APMES, H2N(CH2)3SiCH 3(OC2H5)2) resulting in four new kinds of structural molecular bridge OLA (STA)-AEAPMMS (APMES). Subsequently, ternary molecular complex systems with four molecular bridges OLA (STA)-AEAPMMS (APMES) and 2,2-bipyridyl (bipy) of lanthanides (terbium and europium) or zinc ions were assembled, which resulted in four novel kinds of quaternary molecular hybrid materials (named as bipy-Ln (Zn)-OLA (STA)-AEAPMMS (APMES) with strong chemical bonds (N-Ln(Zn)-O coordination bonds and Si-O covalent bonds) after a sol-gel (cohydrolysis and copolycondensation) process of the modified molecular bridges (as structural ligand) with inorganic precursor (tetraethoxysilane, TEOS). And especially bipy behaves as functional ligand to sensitize the luminescence of terbium or europium ions through the effective intramolecular energy transfer process, which gives rise to the characteristic emission of metal ions. The design and assembly from structural and functional ligands can help achieve a candidate technology for molecular hybrids.
Synthesis and self-assembly of Salen type Schiff based on o-phenylenediamine organogels in response to Zn2+
Niu, Wei-Ya,Shang, Qi,Xue, Ji-Jun,Yang, Yun-Shang,Zhang, Ying-Peng
, (2020/12/29)
Two Salen type Schiff based on o-phenylenediamine were synthesized. The prepared organogelators demonstrated excellent gel properties in some selected solvents, such as n-pentanol, chloroform, and 1,2-dichloroethane. The results for thermal stability showed that under concentrations increasing of the gel molecules and then the gel-to-sol transition temperature value is increased. Through various techniques found that the hydrogen bonding between molecules, the van der Waals force, and the π-π stacking provide multiple driving forces for gel self-assembly. The morphology of the xerogel was investigated by Scanning Electron Microscope (SEM). The metal ions responsiveness experiment is completed by adding the metal ions solution dropwise to the gel surface and confirmed by the UV spectrum.
Catalyst for synthesizing acyl chloride compounds and application thereof
-
Paragraph 0063-0067, (2020/10/20)
The invention relates to a catalyst for synthesizing an acyl chloride compound and application of the catalyst. The structural formula is as shown in the specification, and in the formula, R is alkali of which the carbon atom number is 1-12. The catalyst is capable of effectively increasing the product yield, improving the production efficiency and lowering the production cost of acyl chloride, and has wide application prospects. The invention further provides a method for synthesizing acyl chloride with the catalyst.
A new class of pure estrogen alpha receptor antagonists; design, synthesis and in-vitro screening
Jameera Begam, Akbar John,Basheer, Katike Ahamed,Jubie, Selvaraj,Jupudi, Srikanth,Azam, Mohammed Afzal,Dhanabal, Palanisamy
, p. 66 - 81 (2019/01/04)
Background: In view of the estrogenic receptor inhibitory properties of coumarin nucleus, long chain nature of fatty acid and anti-breast cancer activity of fatty acids, it was proposed to attach long chain fatty acids at 3rd,4th and 7th position of coumarin nucleus and evaluate for their anti-breast cancer activity through suitable in-vitro methods. Methods: The present study focuses a library of fatty acid coumarin conjugates as ligands to the ligand-binding domain of the human estrogen receptor α (PDB ID 2IOG) and their binding affinities using GLIDE module of Schrodinger after ascertaining their drug-likeness with QIKPROP. The compounds LNAC 8, SAC 1 and OAC 5 are the best hits based on their docking scores as well as the Prime MM-GBSA free energy of binding. Based on the in-silico results and synthetic feasibility the compounds SAC 1 PAC 1 and OAC 1 are synthesized, characterized and investigated for their time interval growth inhibitory effect on MCF-7 which is an ER positive breast cancer cell lines. Results: SAC 1, showed better in vitro growth inhibitory effect in sub micromolar range as compared to Tamoxifen, a standard estrogen receptor modulator. Conclusion: Conclusively, in silico molecular docking studies have been very useful in predicting the pharmacokinetic profiles and the binding affinities of new hits before a detailed preclinical and clinical evaluation.