9-(4-Dialkylaminostyryl)-acridines - a new class of acidochromic dyes
摘要:
A series of new acidochromic 9-(4-dialkylaminostyryl)-acridines (1) were synthesized and characterized by means of elemental analysis, m.p., mass and H-1-NMR-spectra. The colour change in the presence of perchloric acid and the pK(a) was investigated. Their photosensitizing ability was tested by oxygen consumption measurements.
Emergence through delicate balance between the steric factor and molecular orientation: a highly bright and photostable DNA marker for real-time monitoring of cell growth dynamics
6-aryl pyrazolo\x9b3,4-D! pyrimidin-4-ones and compositions and method of
申请人:Sanofi
公开号:US05736548A1
公开(公告)日:1998-04-07
6-Aryl pyrazolo\x9b3,4-d!pyrimidin-4-one derivatives, pharmaceutical compositions containing them and methods for effecting c-GMP-phosphodiesterase inhibition and for treating heart failure and/or hypertension.
Push–Pull Stilbene: Visible Light Activated Photoremovable Protecting Group for Alcohols and Carboxylic Acids with Fluorescence Reporting Employed for Drug Delivery
For the first time we have utilized push–pull stilbene as a visiblelightactivated photoremovable protecting group (PRPG) for the uncaging of alcohols and carboxylic acids. The PRPG efficiently release caged molecules with good photochemical quantum yield. It is capable of monitoring the release in real time owing to its fluorescence “turn on” phenomenon upon photorelease in polar medium. The efficient
10A-AZALIDE COMPOUND CROSSLINKED AT 10A- AND 12-POSITIONS
申请人:Sugimoto Tomohiro
公开号:US20110237784A1
公开(公告)日:2011-09-29
A novel 10a-azalide compound crosslinked at the 10a- and 12-positions, which is represented by the following formula, and is effective on even
Hemophilus influenzae
, or erythromycin resistant bacteria (e.g., resistant pneumococci and streptococci).
Pyridine compounds, process for their preparation and systems containing them
申请人:STERLING DRUG INC.
公开号:EP0061128A1
公开(公告)日:1982-09-29
Novel 4-aryl- or heteroaryl-2,6-bis(heteroaryl) or [(substituted-amino) phenyl] pyridines which are useful as color formers in pressure-sensitive carbonless duplicating systems and thermal marking systems are prepared by reacting an aryl or heteroaryl methyl ketone with an aryl or heteroaryl aldehyde in the presence of ammonia or an ammonia-releasing agent.