Colorimetric anion sensing by porphyrin-based anion receptors
摘要:
Porphyrin derivatives 1-4 with H-bond donors and/or color-reporting chromophoric unit were synthesized and studied as anion-binding receptors. 1 and 2 exhibited binding selectivity in the order of AcO->H(2)PO(4)much greater than Cl-, Br-, I- in DMSO-d(6). Color change tests with several different anions for colorimetric anion sensors (3 and 4) resulted in selectivities for F-, AcO- and H2PO4- in organic solution. While 1 and 2 exhibited good selectivities for AcO- and H2PO4-, 3 and 4 showed a dramatic color change for F- due to increased interaction with a nitrophenylazo phenolic OH group. (C) 2001 Elsevier Science Ltd. All rights reserved.
Synthesis of Chemically and Configurationally Stable Monofluoro Acylboronates: Effect of Ligand Structure on their Formation, Properties, and Reactivities
作者:Hidetoshi Noda、Jeffrey W. Bode
DOI:10.1021/jacs.5b00822
日期:2015.3.25
tetravalent, configurationally stable B-chiral acylboronates. Significantly, the ligands on the boronate allow for fine-tuning of the properties and reactivity of acylboronates. In amide-formingligation with hydroxylamines under aqueous conditions, a considerable difference in reactivity was observed as a function of ligand structure. The solid-state structures suggested that subtle steric and conformational
Substituted isoquinoline-1,3(2H,4H)-diones, 1-thioxo-1,4-dihydro-2H-isoquinoline-3-ones and 1,4-dihydro-3 (2H)-isoquinolones and methods of use thereof
申请人:Tsou Hwei-Ru
公开号:US20080085890A1
公开(公告)日:2008-04-10
This invention provides compounds of Formula (I), having the structure
where G
1
, G
2
, G
3
, G
4
, A
1
, A
2
, Y
1
, Y
2
, L
1
, Z, e and f are defined herein, or a pharmaceutically acceptable salt thereof, which are useful for treating or preventing cancer.
N6-SUBSTITUTED ADENOSINE DERIVATIVES AND N6-SUBSTITUTED ADENINE DERIVATIVES AND USES THEREOF
申请人:Shi Jiangong
公开号:US20130045942A1
公开(公告)日:2013-02-21
The present invention provides N
6
-substituted adenosine derivatives and N
6
-substituted adenine derivatives, manufacturing methods thereof, a pharmaceutical composition comprising the said compounds above, and uses of these compounds in manufacturing medicaments and health-care products for treating insomnia, convulsion, epilepsy, and Parkinson's diseases, and preventing and treating dementia.
Nicotinamide derivatives and a tiotropium salt in combination for the treatment of diseases
申请人:——
公开号:US20030220361A1
公开(公告)日:2003-11-27
The invention relates to a combination of a nicotinamide derivative and tiotropium or a derivative thereof, compositions containing it and the uses of, such a combination. The combination according to the present invention is useful in numerous diseases, disorders and conditions, in particular inflammatory, allergic and respiratory diseases, disorders and conditions.