This invention is directed to a compound of formula (I):
wherein R
1
, R
2
, R
3
, R
4
and L
1
are as defined herein, a pharmaceutical composition comprising the compound, and the use of the compound to treat allergic and/or inflammatory disorders, particularly disorders such as allergic rhinitis, asthma and/or chronic obstructive pulmonary disease (COPD).
This invention is directed to a compound of formula (I):
wherein R1, R2, R3, R4 and L1 are as defined herein, a pharmaceutical composition comprising the compound, and the use of the compound to treat allergic and/or inflammatory disorders, particularly disorders such as allergic rhinitis, asthma and/or chronic obstructive pulmonary disease (COPD).
Enantioselective Synthesis of N−N Bisindole Atropisomers
作者:Peng Zhang、Qi Xu、Xiao‐Mei Wang、Jia Feng、Chuan‐Jun Lu、Yingzi Li、Ren‐Rong Liu
DOI:10.1002/anie.202212101
日期:2022.11.2
An enantioselectivesynthesis of N−Nbisindoleatropisomers based on the de novo construction of one indole skeleton is presented. A wide variety of N−N axially chiral bisindoles were obtained in good yields with excellent enantioselectivities. Structurally diverse indole-pyrrole, indole-carbazole and non-biaryl-indole atropisomers possessing a chiral N−N axis were accessed using this protocol.
Palladium-Catalyzed Double <i>N</i>-Arylation to Access Unsymmetric <i>N</i>,<i>N</i>′-Bicarbazole Scaffolds
作者:Huan Zhang、Yi Ding、Mei-Ru Zhang、Chuan-Jun Lu、Jia Feng、Ren-Rong Liu
DOI:10.1021/acs.joc.3c00637
日期:2023.7.21
Herein, the palladium-catalyzed double C–N coupling of 9H-carbazol-9-amines and 2,2′-dibromo-1,1′-biphenyl is reported. This protocol offers access to N,N′-bicarbazole scaffolds, which have frequently been used as linkers in the construction of functional covalent organic frameworks (COFs). A variety of substituted N,N′-bicarbazoles were synthesized in moderate to high yields based on this chemistry
Enantioselective Synthesis of Benzimidazole Atropisomers Featuring a <scp>N‐N</scp> Axis<sup>†</sup>
作者:Fang‐Bei Ge、Qi‐Kun Yin、Chuan‐Jun Lu、Xuan Xuan、Jia Feng、Ren‐Rong Liu
DOI:10.1002/cjoc.202300600
日期:2024.4
indole-benzimidazole atropisomers were conveniently accessed in high yields and with excellent enantioselectivities. Significantly, these N-N benzimidazole atropisomers showed great antitumoractivity and selectivity to breast cancer MCF-7 cells. The simple catalytic system, broad substrate scope, high enantioselectivity, and good bioactivity make this approach highly attractive.
NN 阻转异构体的阻转选择性合成是一个新兴领域,但仍未得到充分探索;尤其是NN苯并咪唑阻转异构体的合成仍然是前所未有的。在此,首次通过钯催化苯并咪唑骨架的从头构建对映选择性合成 NN 苯并咪唑阻转异构体。利用现成的钯催化剂和双膦配体,可以方便地以高产率和优异的对映选择性获得多种非联芳基苯并咪唑和吲哚苯并咪唑阻转异构体。值得注意的是,这些 NN 苯并咪唑阻转异构体对乳腺癌 MCF-7 细胞表现出良好的抗肿瘤活性和选择性。简单的催化体系、广泛的底物范围、高对映选择性和良好的生物活性使该方法极具吸引力。