Colorimetric ‘naked-eye’ sensor for anions based on conformational flexible tripodal receptor
作者:Shuang Bao、Wei-tao Gong、Wen-dan Chen、Jun-wei Ye、Yuan Lin、Gui-ling Ning
DOI:10.1007/s10847-010-9869-2
日期:2011.6
A new tripodal receptor for anion sensing based on amide-pyridinium as recognition site and nitro-benzene as signaling unit was designed and successfully synthesized. This receptor showed high selectivity and strong binding affinity toward AcO− over the investigated anions, especially over H2PO4 −. Addition of AcO− induced clear color change of solution from colorless to yellow, realizing the “naked-eye” detection. UV–Vis and 1H NMR experiments indicated the selectivity might origin from the synergistic effects arising from hydrogen bonding, electrostatic interactions and conformational change.
Spectroscopic and Crystallographic Characterization of the R<sub>3</sub>N<sup>+</sup>−C−H⋅⋅⋅X Interaction
作者:Joseph N. Capilato、Stefan A. Harry、Maxime A. Siegler、Thomas Lectka
DOI:10.1002/chem.202103922
日期:2022.2.7
Despite recent studies that have demonstrated the importance of R3N+−C−H hydrogenbonds in synthesis, biology and medicine, these noncovalent interactions remain undercharacterized. Herein, we present crystallographic, computational and for the first time, spectroscopicevidence for these weak hydrogenbonds.
尽管最近的研究证明了 R 3 N + -C-H 氢键在合成、生物学和医学中的重要性,但这些非共价相互作用仍未得到充分表征。在这里,我们首次展示了这些弱氢键的晶体学、计算学和光谱学证据。
Substituted cyclic amine compound, production process thereof and
申请人:Toa Eiyo, Ltd.
公开号:US05728835A1
公开(公告)日:1998-03-17
A substituted cyclic amine compound represented by the following general formula (1) ##STR1## wherein each of R.sup.1 to R.sup.5 represents a hydrogen atom, a halogen atom, a lower alkyl group, a lower alkoxy group or the like, A represents a carbonyl group or a sulfonyl group, B represents a methine moiety or a nitrogen atom, D represents a methine moiety, a nitrogen atom or .dbd.N(.fwdarw.O)-- and n is an integer of 2 to 3; and synthetic methods thereof. The inventive compound is useful in preventing and treating circulatory organ-related diseases such as hypertension, ischemic heart disease, cerebrovascular disease, peripheral circulatory disease and the like.
Substituted cyclic amine compounds as 5HT2 antagonists
申请人:TOA EIYO LTD.
公开号:EP0661266A1
公开(公告)日:1995-07-05
A substituted cyclic amine compound represented by the following general formula (1)
wherein each of R¹ to R⁵ represents a hydrogen atom, a hydroxyl group, an alkyl group or the like, D represents a methine moiety, a nitrogen atom or the like, P represents -CR⁶(R⁷)- or -NR⁸-, Q represents a methine moiety or a nitrogen atom, each of T and B is a single bond or represents a methylene moiety, a carbonyl group or the like, n is an integer of 1 to 6 and each of R⁶, R⁷ and R⁸ represents a hydrogen atom, an alkyl group or the like; and synthetic intermediates thereof.
The inventive compound is useful in preventing and treating circulatory organ-related diseases such as hypertension, ischemic heart disease, cerebrovascular disease, peripherol circulatory disease and the like.
Exploration of secondary and tertiary pharmacophores in unsymmetrical N,N′-diaryl urea inhibitors of soluble epoxide hydrolase
作者:Sampath-Kumar Anandan、Richard D. Gless
DOI:10.1016/j.bmcl.2010.03.074
日期:2010.5
The impact of various secondary and tertiary pharmacophores on in vitro potency of soluble epoxide hydrolase (sEH) inhibitors based on the unsymmetrical urea scaffold 1 is discussed. N,N'-Diaryl urea inhibitors of soluble epoxide hydrolase exhibit subtle variations in inhibitory potency depending on the secondary pharmacophore but tolerate considerable structural variation in the second linker/tertiary pharmacophore fragment. (C) 2010 Elsevier Ltd. All rights reserved.