Synthesis of steroidal and nonsteroidal vicinal heterocyclic alcohols, N-(1-cycloalkenyl)heterocycles and their antibacterial studies
摘要:
A solvent free steroidal and nonsteroidal epoxide ring opening reaction by nitrogen containing heterocycles under microwave irradiation is described. Some of the epoxide ring opening compounds were converted to their corresponding N-(1-cycloalkenyl)heterocycles via an acid catalyzed dehydration reaction. The antimicrobial activities of the epoxide ring opening compounds and N-(1-cycloalkenyl)heterocyclic compounds were tested by agar diffusion assay. Compounds 6, 9-12, 24 and 27 showed moderate inhibition against the growth of pathogenic bacteria Escherichia coli, Pseudomonas syringae, Bacillus subtilis, Proteus vulgaris and Staphylococcus aureus. (C) 2014 Elsevier Inc. All rights reserved.
Silyl Tosylate Precursors to Cyclohexyne, 1,2-Cyclohexadiene, and 1,2-Cycloheptadiene
作者:Matthew S. McVeigh、Andrew V. Kelleghan、Michael M. Yamano、Rachel R. Knapp、Neil K. Garg
DOI:10.1021/acs.orglett.0c01510
日期:2020.6.5
development of alternative precursors. We report the syntheses of silyl tosylate precursors to cyclohexyne, 1,2-cyclohexadiene, and 1,2-cycloheptadiene. The resultant strained intermediates undergo trapping in situ to give cycloaddition products. Additionally, the results of competition experiments between silyl triflates and silyl tosylates are reported.
Heterocycle Derivatives As Histone Deacetylase (Hdac) Inhibitors
申请人:Attenni Barbara
公开号:US20090048228A1
公开(公告)日:2009-02-19
The present invention relates to compounds of formula I:
or pharmaceutically acceptable salts or tautomers thereof, which are inhibitors of histone deacetylase (HDAC). The compounds of the present invention are useful for treating cellular proliferative diseases, including cancer. Further, the compounds of the present invention are useful for treating neurodegenerative diseases, schizophrenia and stroke among other diseases.
Cyclohexyl- und cyclohexenylimidazolverbindungen, Verfahren zu ihrer Herstellung und ihre Verwendung als Pflanzenschutzmittel
申请人:——
公开号:EP0199206A3
公开(公告)日:1987-04-08
Die neuen Verbindungen der Formel I oder deren Salzeworin R= einen (subst.) Cyclohexyl oder einen (subst.) Cyclohexenyl-rest; Y= Cyano, einen (subst.) (Di)-(Thio) Carbonsäure-(ester), -amid, -acetalrest, einen Keto-oder Oximrest oder einen heterocyclischen Rest bedeuten, besitzen vorteilhafte Wirkungen als Pflanzenwachstumregulatoren und weisen zudem günstige herbizide und fungizide Eigenschaften auf.
式 I 的新化合物或其盐类,其中 R = 一个(亚基)环己基或一个(亚基)环己烯基;Y = 氰基、一个(亚基)(二)-(硫代)羧酸(酯)、-酰胺、-乙缩醛基、酮基或肟基或杂环基,具有作为植物生长调节剂的优势效果,还表现出良好的除草和杀菌特性。
Cycloadditions of Cyclohexynes and Cyclopentyne
作者:Jose M. Medina、Travis C. McMahon、Gonzalo Jiménez-Osés、K. N. Houk、Neil K. Garg
DOI:10.1021/ja508635v
日期:2014.10.22
We report the strategic use of cyclohexyne and the more elusive intermediate, cyclopentyne, as a tool for the synthesis of new heterocyclic compounds. Experimental and computational studies of a 3-substituted cyclohexyne are also described. The observed regioselectivities are explained by the distortion/interaction model.
Synthesis of <i>N</i>-Cycloalkenylazoles
作者:Alan R. Katritzky、Rexiat Maimait、Yong-Jiang Xu、Young Soo Gyoung
DOI:10.1021/jo020336m
日期:2002.11.1
N-(1-Cycloalkenyl)pyrroles 3a,b, -pyrazoles 6a,b, and -imidazoles 9a,b were synthesized via elimination of benzotriazole or 5-phenyltetrazole from the corresponding 1-[1-(heterocycyl)cycloalkyl]-benzotriazoles 2, 5, and 8 or 1-[1-(heterocycyl)cyclohexyl] 5-phenyltetrazole (12 and 14). Intermediates 2, 5, 8, 12 and 14 were obtained by cyclizations of dihaloalkanes with N-(benzotriazol-1-ylmethyl)heterocycles, 1-imidazol-1-ylmethyl-5-plienyltetrazole (11), or 1-pyrazol-1-ylmethyl-5-phenyltetrazole (13) in the presence of n-BuLi.