制备了一系列吡啶-2-酚盐-6-(σ-芳基)[O CH 2 N,C] 4族双(苄基)预催化剂,具有柔性的O,N-给体螯合物,并通过多核NMR进行了表征光谱学。这些络合物采用C 1对称性,对二氟取代的σ-芳基Ti(IV)衍生物进行的可变温度1 H NMR实验表明,涉及七元螯合环倒置并伴随着苄基构象变化的流变过程( Δ ģ ‡ = 62.6千焦摩尔-1)。通过X射线晶体学研究确定的Zr(IV)亲戚的分子结构,发现[O CH]的“准子午线”配位严重扭曲2 N,C]配体和苄基部分的几乎垂直取向。已经与甲基铝氧烷(MAO)和硼酸三苯甲基酯一起进行了烯烃聚合研究。使用干燥的MAO(250当量)作为助催化剂和7 atm的乙烯压力,CF 3取代的Ti(IV)催化剂显示出良好的活性(在75°C时为680 g mmol –1 h –1; M w = 3.4×10 2 kg mol –1, M w / M n =
制备了一系列吡啶-2-酚盐-6-(σ-芳基)[O CH 2 N,C] 4族双(苄基)预催化剂,具有柔性的O,N-给体螯合物,并通过多核NMR进行了表征光谱学。这些络合物采用C 1对称性,对二氟取代的σ-芳基Ti(IV)衍生物进行的可变温度1 H NMR实验表明,涉及七元螯合环倒置并伴随着苄基构象变化的流变过程( Δ ģ ‡ = 62.6千焦摩尔-1)。通过X射线晶体学研究确定的Zr(IV)亲戚的分子结构,发现[O CH]的“准子午线”配位严重扭曲2 N,C]配体和苄基部分的几乎垂直取向。已经与甲基铝氧烷(MAO)和硼酸三苯甲基酯一起进行了烯烃聚合研究。使用干燥的MAO(250当量)作为助催化剂和7 atm的乙烯压力,CF 3取代的Ti(IV)催化剂显示出良好的活性(在75°C时为680 g mmol –1 h –1; M w = 3.4×10 2 kg mol –1, M w / M n =
POLYCYCLIC COMPOUNDS AS LYSOPHOSPHATIDIC ACID RECEPTOR ANTAGONISTS
申请人:CLARK Ryan
公开号:US20110082164A1
公开(公告)日:2011-04-07
Described herein are compounds that are antagonists of lysophosphatidic receptor(s). Also described are pharmaceutical compositions and medicaments that include the compounds described herein, as well as methods of using such antagonists, alone and in combination with other compounds, for treating LPA-dependent or LPA-mediated conditions or diseases.
Polycyclic compounds as lysophosphatidic acid receptor antagonists
申请人:Clark Ryan
公开号:US08664220B2
公开(公告)日:2014-03-04
Described herein are compounds that are antagonists of lysophosphatidic receptor(s). Also described are pharmaceutical compositions and medicaments that include the compounds described herein, as well as methods of using such antagonists, alone and in combination with other compounds, for treating LPA-dependent or LPA-mediated conditions or diseases.