背景技术在我们先前的工作中,已经合成了几种哌嗪衍生的双(二烷基胺硫代羰基)二硫化物和二硫代氨基甲酸的二硫化物酯,并评估了它们的杀精和杀微生物功效。这些研究为开发处于临床前阶段的双重活性阴道杀菌剂提供了一些有希望的化合物。目的本研究的主要目的是对双(二烷基胺硫代羰基)二硫化物(4-15)和2,2'-二硫代二烷基双(3-(取代的-1-基)丙烷-2,1-二基)进行设计合成和生物学评估。作为非表面活性剂分子的二取代-1-碳二硫酸酯(19-28),能够消除阴道毛滴虫以及不可逆地快速固定100%人类精子。方法杀菌,抗毛滴虫,按照报道的方法进行了合成化合物的细胞毒性和生物相容性研究。结果发现双(二烷基胺硫代羰基)二硫化物(表1中的4-15)中,化合物4(MEC 0.02 mM)是最理想的杀精子活性,因为它的活性比Nonoxynol-9(N-9)高40倍,并且对阴道毛滴虫(MIC 0.02&1.10 mM
A Facile Solid-Phase Synthesis of Substituted 2(5<i>H</i>)-Furanones with Sulfone Traceless Linker
作者:Shou-Ri Sheng、Pei-Gang Huang、Wei Zhou、Hai-Rong Luo、Shu-Ying Lin、Xiao-Ling Liu
DOI:10.1055/s-2004-834804
日期:——
A novel solid-phase synthetic method for substituted 2(5H)-furanones with traceless sulfone linker strategy has been developed. The products were obtained in good yields and excellent purities.
[Object]: To provide a compound having a novel structure effective against
Hemophilus influenzae
and erythromycin resistant bacteria (for example, resistant pneumococci and streptococci) as well as against conventional erythromycin sensitive bacteria.
[Solution]: A novel 10a-azalide compound represented by the formula (I), a pharmaceutically acceptable salt thereof or a solvate thereof, or an intermediate for the preparation of the same. The compound of the present invention has superior antibacterial activity against
Hemophilus influenzae
, erythromycin resistant pneumococci and the like, and therefore, the compound can be used as a therapeutic agent of infectious diseases.
[Object]: To provide a compound having a novel structure effective against Hemophilus influenzae and erythromycin resistant bacteria (for example, resistant pneumococci and streptococci) as well as against conventional erythromycin sensitive bacteria.
[Solution]: A novel 10a-azalide compound represented by the formula (I), a pharmaceutically acceptable salt thereof or a solvate thereof, or an intermediate for the preparation of the same. The compound of the present invention has superior antibacterial activity against Hemophilus influenzae, erythromycin resistant pneumococci and the like, and therefore, the compound can be used as a therapeutic agent of infectious diseases.
Modified conjugated diene polymer, method of producing it and rubber composition comprising the same
申请人:JSR Corporation
公开号:EP1099711A2
公开(公告)日:2001-05-16
A novel modified conjugated diene polymer is obtained by polymerizing a conjugated diene compound with a specified catalyst consisting of components (a)-(c) and then reacting with at least one specified compound selected from the group consisting of components (d)-(l), and has a content of cis-1,4-bond of not less than 85% and a ratio of weight average molecular weight to number average molecular weight of not more than 4. And also, a rubber composition comprises the modified conjugated diene polymer a rubber ingredient.
[Object]: To provide a compound having a novel structure effective against Hemophilus influenzae and erythromycin resistant bacteria (for example, resistant pneumococci and streptococci) as well as against conventional erythromycin sensitive bacteria.
[Solution]: A novel 10a-azalide compound represented by the formula (I), a pharmaceutically acceptable salt thereof or a solvate thereof, or an intermediate for the preparation of the same. The compound of the present invention has superior antibacterial activity against Hemophilus influenzae, erythromycin resistant pneumococci and the like, and therefore, the compound can be used as a therapeutic agent of infectious diseases.