Compounds of the formula ##STR1## wherein Y can be tetrazolyl are disclosed. These compounds are useful as cardiovascular agents.
公开了式子##STR1##中Y可以是四唑基的化合物。这些化合物可用作心血管药物。
An expeditious and efficient bromomethylation of thiols: enabling bromomethyl sulfides as useful building blocks
作者:Carolina Silva-Cuevas、Ehecatl Paleo、David F. León-Rayo、J. Armando Lujan-Montelongo
DOI:10.1039/c8ra04002h
日期:——
A new method for the bromomethylation of thiols using paraformaldehyde and HBr/AcOH, minimizes the generation of toxic byproducts. Synthetic utility of α-bromomethyl sulfides was demonstrated through umpolung and free radical chemistry.
The Synthesis of Diquinone and Dihydroquinone Derivatives of Calix[4]arene and Electrochemical Characterization on Au(111) surface
作者:Boštjan Genorio
DOI:10.17344/acsi.2016.2289
日期:2016.9.15
-OH groups with trimethylsilyl groups (TMS) either on lower-rim or on upper-rim was developed. Four selected molecules - with sulfide anchor groups and carboxylic anchor groups - were adsorbed onto Au(111) single crystal surface using ex-situ and insitu self-assembly methods. Adsorbed molecules were then electrochemically probed with cyclic voltammetry. All adsorbed molecules showed redox response which
New Dual Inhibitors of Neutral Endopeptidase and Angiotensin-Converting Enzyme: Rational Design, Bioavailability, and Pharmacological Responses in Experimental Hypertension
molecules and the ACE template. New dual inhibitors, of general formula, N-[2(R,S)-(mercaptomethyl)-3(R,S)-phenylbutanoyl]-L-amino acid with IC50 values in the nanomolar range for both enzymes were generated by this approach. The separation of the four stereoisomers using chiral amines and the stereoselective synthesis of the 2-(mercaptomethyl)-3-phenylbutanoyl moiety showed that inhibitors with the 2S,3R configuration
Second-Generation Inhibitors for the Metalloprotease Neprilysin Based on Bicyclic Heteroaromatic Scaffolds: Synthesis, Biological Activity, and X-Ray Crystal-Structure Analysis
作者:Stefan Sahli、Brian Frank、W. Bernd Schweizer、François Diederich、Denise Blum-Kaelin、Johannes D. Aebi、Hans-Joachim Böhm、Christian Oefner、Glenn E. Dale
DOI:10.1002/hlca.200590051
日期:2005.4
A newclass of nonpeptidic inhibitors of the ZnII-dependent metalloproteaseneprilysin with IC50 values in the nanomolar activity range (0.034–0.30 μM) were developed based on structure-based de novo design (Figs. 1 and 2). The inhibitors feature benzimidazole and imidazo[4,5-c]pyridine moieties as centralscaffolds to undergo H-bonding to Asn542 and Arg717 and to engage in favorable π-π stacking interactions
基于基于结构的从头设计,开发了新型的Zn II依赖性金属蛋白酶中性溶血素的非肽类抑制剂,其IC 50值在纳摩尔活性范围内(0.034–0.30μM)(图1和2)。抑制剂的特征是苯并咪唑和咪唑并[4,5- c ]吡啶部分作为中心骨架,与Asn542和Arg717进行H键结合,并与His711的咪唑环进行有利的π - π堆积相互作用。该平台装饰有硫醇载体,可与Zn II配合使用离子和芳基残基占据疏水的S1'口袋,但在S2'口袋中缺少用于结合的取代基,当不被Phe106和Arg110的侧链保持封闭时,该取代基仍保持封闭。活性化合物(+)- 1,(+)- 2,(+)- 25和(+)- 26的对映选择性合成是使用Evans助剂完成的(方案2、4和5)。具有咪唑并[4,5- c ]吡啶核的抑制剂(+)- 2和(+)- 26约为。活性是苯并咪唑核心((+)- 1和(+)- 25)的8倍(表1)。通过对中性溶酶与(+)-