报道了一系列由特洛格碱(TB)衍生的内在微孔(PIM–TB–PI)新颖的聚酰亚胺系列。TB二胺单体(4MTBDA)具有四个甲基,以限制所得聚合物中绕CN酰亚胺键的旋转。聚合物的表观BET(Brunauer,Emmett和Teller)表面积在584和739 m 2 g –1之间,在氯仿中的完全溶解性,优异的分子量,高比浓对数粘度和良好的成膜性。气体渗透率测量结果表明,与先前报道的聚酰亚胺基Tröger's碱(TB)聚合物相比,其性能得到了增强,从而证实了TB二胺单体中其他甲基的优势。值得注意的是,衍生自4MTBDA和均苯四酸酐(PMDA)的聚酰亚胺显示出重要气体对(例如O 2 / N 2,H 2 / N 2和H 2 / CH 4)的透气率数据高于2008上限。
Highly Diastereo- and Enantioselective Aldol Reactions in Common Organic Solvents Using<i>N</i>-Arylprolinamides as Organocatalysts with Enhanced Acidity
作者:Jarugu Narasimha Moorthy、Satyajit Saha
DOI:10.1002/ejoc.200800960
日期:2008.12.29
steric crowding has been synthesized and its catalytic activity explored for enantioselectivealdolreactions. In DMF containing 10 mol-% of TFA, all arylamides are found to catalyze the reaction between cyclohexanone and a variety of electrophilic aldehydes leading to aldols in excess of 90 % yield and >95 % enantioselectivity. The perfluorophenyl catalyst 8 is found to perform best with a broad substrate
申请人:President and Fellows of Harvard College 프레지던트 앤드 펠로우즈 오브 하바드 칼리지(519980829941)
公开号:KR20180069782A
公开(公告)日:2018-06-25
본 발명은 통증, 가려움증 및 신경성 염증 치료를 위한 화합물, 조성물, 방법, 및 키트를 제공한다.
本发明提供了用于治疗疼痛、瘙痒和神经性炎症的化合物、组合物、方法及试剂盒。
Lidocaine antigens and antibodies
申请人:Syva Company
公开号:US04069105A1
公开(公告)日:1978-01-17
Derivatives of anesthetics involving anilides, lidocaine being illustrative, are provided, having an annular amino group. A difunctional linking group is provided, which provides a link to the annular amino group and an antigen, with the resulting conjugate being employed for the preparation of antibodies. The antibodies find particular use in competitive protein binding assays. Conjugates to enzymes are prepared which find particular use in homogeneous enzyme immunoassays.
Self-Immolative System for Disclosure of Reactive Electrophilic Alkylating Agents: Understanding the Role of the Reporter Group
作者:Alexander G. Gavriel、Flavien Leroux、Gurjeet S. Khurana、Viliyana G. Lewis、Ann M. Chippindale、Mark R. Sambrook、Wayne Hayes、Andrew T. Russell
DOI:10.1021/acs.joc.1c00996
日期:2021.8.6
reporter group. The position of the nitro substituent (meta- vs para-) and the methyl groups in the ortho-position relative to the carbamate exhibited an influence on the rate of elimination and stability of the self-immolative system. The ortho-methyl substituents imparted a twist on the N–C (aromatic) bond leading to increased resonance of the amine nitrogen’s lone pair into the carbonyl moiety and
The present invention provides compounds and compositions thereof which are useful as inhibitors of plasma kallikrein and which exhibit desirable characteristics for the same.