Synthesis and Structure of 2,2'-Dihydroxybenzophenones and 1,8-Dihydroxyfluorenones
摘要:
Derivatives of 2,2'-dihydroxybenzophenone and 1,8-dihydroxyfluorenone are interesting because their structures juxtapose a carbonyl group and two hydroxyl groups, thereby permitting them to be used to study the double electrophilic activation of carbonyl compounds by Lewis and Bronsted acids. Efficient syntheses of selected 2,2'-dihydroxybenzophenones 2a,b and 1,8-dihydroxyfluorenones 3a-c are described. Spectroscopic and X-ray crystallographic studies show that the carbonyl oxygen atom in each series of compounds accepts two approximately symmetric intramolecular hydrogen bonds. This observation illustrates the ability of carbonyl compounds to interact simultaneously with multiple electrophilic sites.
Synthesis and Structure of 2,2'-Dihydroxybenzophenones and 1,8-Dihydroxyfluorenones
摘要:
Derivatives of 2,2'-dihydroxybenzophenone and 1,8-dihydroxyfluorenone are interesting because their structures juxtapose a carbonyl group and two hydroxyl groups, thereby permitting them to be used to study the double electrophilic activation of carbonyl compounds by Lewis and Bronsted acids. Efficient syntheses of selected 2,2'-dihydroxybenzophenones 2a,b and 1,8-dihydroxyfluorenones 3a-c are described. Spectroscopic and X-ray crystallographic studies show that the carbonyl oxygen atom in each series of compounds accepts two approximately symmetric intramolecular hydrogen bonds. This observation illustrates the ability of carbonyl compounds to interact simultaneously with multiple electrophilic sites.
The present disclosure provides compounds of formula (I) or salts thereof, wherein R1- R10 and x are defined herein; compositions containing these compounds; methods of inhibiting, reducing, or ameliorating bacterial growth on a substrate using these compound; and products such as dental care products, soaps, antibacterial products, and plastics comprise one or more compounds described herein.
A Bisphenolic Honokiol Analog Outcompetes Oral Antimicrobial Agent Cetylpyridinium Chloride via a Membrane-Associated Mechanism
作者:Cristian Ochoa、Amy E. Solinski、Marcus Nowlan、Madeline M. Dekarske、William M. Wuest、Marisa C. Kozlowski
DOI:10.1021/acsinfecdis.9b00190
日期:2020.1.10
Targeting Streptococcus mutans is the primary focus in reducing dental caries, one of the most common maladies in the world. Previously, our groups discovered a potent bactericidal biaryl compound that was inspired by the natural product honokiol. Herein, a structure activity relationship (SAR) study to ascertain structural motifs key to inhibition is outlined. Furthermore, mechanism studies show that bacterial membrane disruption is central to the bacterial growth inhibition. During this process, it was discovered that analog C2 demonstrated a 4-fold better therapeutic index compared to the commercially available antimicrobial cetylpyridinium chloride (CPC) making it a viable alternative for oral care.
BISPHENOL COMPOUNDS
申请人:THE TRUSTEES OF THE UNIVERSITY OF PENNSYLVANIA
公开号:US20200375949A1
公开(公告)日:2020-12-03
The present disclosure provides compounds of formula (I) or salts thereof, wherein R
1
-R
10
and x are defined herein; compositions containing these compounds; methods of inhibiting, reducing, or ameliorating bacterial growth on a substrate using these compound; and products such as dental care products, soaps, antibacterial products, and plastics comprise one or more compounds described herein.