Synthesis of a biphenyl library for studies of hydrogen bonding in the solid state
摘要:
A biphenyl library incorporating amide and sulfonamide groups has been synthesised via microwave-mediated Suzuki-Miyaura couplings. Many derivatives were crystallised from dichloromethane/methanol and analysed by single crystal X-ray diffraction. An interesting structure was obtained for N-(4'-methylbiphenyl-4-yl)acetamide with Z'=6 and hydrogen-bonding networks of the type N-H center dot center dot center dot O in the unit cell. (C) 2012 Elsevier Ltd. All rights reserved.
Pd-Catalyzed Suzuki coupling reactions of aryl halides containing basic nitrogen centers with arylboronic acids in water in the absence of added base
作者:Zhao Li、Carol Gelbaum、Zachary S. Campbell、Paul C. Gould、Jason S. Fisk、Bruce Holden、Arvind Jaganathan、Gregory T. Whiteker、Pamela Pollet、Charles L. Liotta
DOI:10.1039/c7nj03567e
日期:——
The Pd-catalyzed Suzuki coupling reactions of a series of aryl chlorides and aryl bromides containing basic nitrogen centers with arylboronicacids in water in the absence of added base are reported. The reactions proceed either partially or entirely under acidic conditions. After surveying twenty-two phosphorus ligands, high yields of products were obtained with aryl chlorides only when a bulky ligand
Heterocyclic Allylsulfones as Latent Heteroaryl Nucleophiles in Palladium-Catalyzed Cross-Coupling Reactions
作者:Tim Markovic、Philip R. D. Murray、Benjamin N. Rocke、Andre Shavnya、David C. Blakemore、Michael C. Willis
DOI:10.1021/jacs.8b09595
日期:2018.11.21
desulfinylative cross-coupling. A broad range of allyl heteroarylsulfones are conveniently prepared, using several complementary routes, and are shown to be effective coupling partners with a variety of aryl and heteroaryl halides. We demonstrate that the allylsulfone functional group can tolerate a range of standard synthetic transformations, including orthogonal C- and N-coupling reactions, allowing multistep
杂环亚磺酸盐是钯催化与芳基和杂芳基卤化物偶联反应的有效试剂,通常可提供高产率的目标联芳基。然而,复杂杂环亚磺酸盐的制备和纯化可能存在问题。此外,亚磺酸盐官能团不能耐受大多数合成转化,使这些试剂不适合多步加工。在这里,我们表明杂环烯丙基砜可以作为潜在的亚磺酸盐试剂,并且当用 Pd(0) 催化剂和芳基卤化物处理时,会发生脱烯丙基化,然后进行有效的脱亚磺酰交叉偶联。使用多种互补路线可以方便地制备范围广泛的烯丙基杂芳基砜,并且证明是与各种芳基和杂芳基卤化物的有效偶联伙伴。我们证明烯丙基砜官能团可以耐受一系列标准合成转化,包括正交 C 和 N 偶联反应,允许多步加工。烯丙基砜成功地与多种医学相关底物偶联,证明了它们在要求严格的交叉偶联转化中的适用性。此外,药物克唑替尼和依托考昔是使用烯丙基杂芳基砜偶联伙伴制备的,进一步证明了这些新试剂的实用性。证明它们在要求苛刻的交叉耦合转换中的适用性。此外,药物克
Antitumor agent, novel 3(2H)-pyridazinone derivatives and their preparation
申请人:TAKEDA CHEMICAL INDUSTRIES, LTD.
公开号:EP0665223A1
公开(公告)日:1995-08-02
Anti-tomor agents comprising novel 3(2H)-pyridazinone derivatives or salts thereof and methods of producing the same are disclosed. Also disclosed is a method for treating or preventing tumors by administering to a mammal a therapeutically effective amount of 4,5-di substituted 3(2H)-pyridazinones and salts thereof.
The present invention provides agents effective to treat eye diseases, pharmaceutical compositions comprising them, methods for preparing pharmaceuticals for treatment of eye diseases comprising using the agents, use of the agents in manufacture of pharmaceuticals for treatment of eye diseases and methods for treating eye diseases comprising administering the agents or the pharmaceutical compositions. The eye diseases treated by the present invention include particularly glaucoma, especially normal tension glaucoma, or retinitis pigmentosa. The present invention provides the compound of formula (I)
wherein R is as defined in the description.
The present invention provides compounds which can regulate VCP activity. The present invention provides the compound of formula (I)
(R is as defined in the description)
or oxides, esters, prodrugs, pharmaceutically acceptable salts or solvates thereof. The compounds can regulate VCP activity, and thus are useful for treating VCP-mediated diseases such as neurodegenerative diseases.