77398-92-6Relevant academic research and scientific papers
Discovery and Characterization of Pure RhlR Antagonists against Pseudomonas aeruginosa Infections
Nam, SangJin,Ham, So-Young,Kwon, Hongmok,Kim, Han-Shin,Moon, Suhyun,Lee, Jeong-Hoon,Lim, Taehyeong,Son, Sang-Hyun,Park, Hee-Deung,Byun, Youngjoo
, p. 8388 - 8407 (2020/09/21)
Pseudomonas aeruginosa (P. aeruginosa) is an opportunistic human pathogen that forms biofilms and produces virulence factors via quorum sensing (QS). Blocking the QS system in P. aeruginosa is an excellent strategy to reduce biofilm formation and the production of virulence factors. RhlR plays an essential role in the QS system of P. aeruginosa. We synthesized 55 analogues based on the chemical structure of 4-gingerol and evaluated their RhlR inhibitory activities using the cell-based reporter strain assay. Comprehensive structure-activity relationship studies identified the alkynyl ketone 30 as the most potent RhlR antagonist. This compound displayed selective RhlR antagonism over LasR and PqsR, strong inhibition of biofilm formation, and reduced production of virulence factors in P. aeruginosa. Furthermore, the survival rate of Tenebrio molitor larvae treated with 30 in vivo greatly improved. Therefore, compound 30, a pure RhlR antagonist, can be utilized for developing QS-modulating molecules in the control of P. aeruginosa infections.
GINGEROL DERIVATIVE HAVING INHIBITORY ACTIVITY AGAINST BIOFILM FORMATION AND PHARMACEUTICAL COMPOSITION COMPRISING SAME AS EFFECTIVE INGREDIENT FOR PREVENTING OR TREATING BIOFILM-CAUSED INFECTION SYMPTOM
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Paragraph 0032; 0051-0052; 0059-0060, (2020/09/22)
The present invention relates to a gingerol derivative having inhibitory activity against biofilm formation and a pharmaceutical composition for preventing or treating infections caused by biofilms including the gingerol derivative as an active ingredient. The gingerol derivative of the present invention exhibits significantly improved binding affinity for LasR and inhibitory activity against biofilm formation. Therefore, the gingerol derivative of the present invention can act on various membrane surfaces where biofilms tend to form and can effectively inhibit the formation of the corresponding biofilms. In addition, the use of the pharmaceutical composition according to the present invention can fundamentally prevent or treat a variety of infections caused by biofilms due to the presence of the gingerol derivative in the pharmaceutical composition.
METHOD FOR PREPARING HIGHLY ENANTIO-ENRICHED GINGEROLS
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Paragraph 0083-0088; 0133, (2019/12/25)
Disclosed is a method for preparing a chiral Gingerol compound. To prepare the chiral Gingerol compound, a racemic Gingerol compound is treated with kinetic resolution in the presence of a chiral catalyst compound and an alkali metal fluoride so a chiral Gingerol compound with high optical purity can be prepared. An oligo ethylene glycol-derived compound including an oligo ethylene glycol functional group, a basic part, and a hydroxy functional group of a binol derivative, an acidic part, can be used as a chiral catalyst compound.COPYRIGHT KIPO 2020
Kinetic Resolution of β-Hydroxy Carbonyl Compounds via Enantioselective Dehydration Using a Cation-Binding Catalyst: Facile Access to Enantiopure Chiral Aldols
Paladhi, Sushovan,Hwang, In-Soo,Yoo, Eun Jeong,Ryu, Do Hyun,Song, Choong Eui
supporting information, p. 2003 - 2006 (2018/04/16)
A practical and highly enantioselective nonenzymatic kinetic resolution of racemic β-hydroxy carbonyl (aldol) compounds through enantioselective dehydration process was developed using a cation-binding Song's oligoethylene glycol (oligoEG) catalyst with p
Structure-Activity Relationships of 6- and 8-Gingerol Analogs as Anti-Biofilm Agents
Choi, Hyunsuk,Ham, So-Young,Cha, Eunji,Shin, Yujin,Kim, Han-Shin,Bang, Jeong Kyu,Son, Sang-Hyun,Park, Hee-Deung,Byun, Youngjoo
, p. 9821 - 9837 (2017/12/26)
Pseudomonas aeruginosa is a causative agent of chronic infections in immunocompromised patients. Disruption of quorum sensing circuits is an attractive strategy for treating diseases associated with P. aeruginosa infection. In this study, we designed and synthesized a series of gingerol analogs targeting LasR, a master regulator of quorum sensing networks in P. aeruginosa. Structure-activity relationship studies showed that a hydrogen-bonding interaction in the head section, stereochemistry and rotational rigidity in the middle section, and optimal alkyl chain length in the tail section are important factors for the enhancement of LasR-binding affinity and for the inhibition of biofilm formation. The most potent compound 41, an analog of (R)-8-gingerol with restricted rotation, showed stronger LasR-binding affinity and inhibition of biofilm formation than the known LasR antagonist (S)-6-gingerol. This new LasR antagonist can be used as an early lead compound for the development of anti-biofilm agents to treat P. aeruginosa infections.
An Efficient Enantioselective Synthesis of Natural Gingerols, the Active Principles of Ginger
Ramesh Reddy,Wadavrao, Sachin B.,Yadav,Venkat Narsaiah
, p. 1009 - 1017 (2015/11/23)
A straightforward synthesis of (S)-gingerols 1-3 has been described. The requisite stereogenic center in the target molecules was introduced by Sharpless asymmetric dihydroxylation using a chiral complex, AD-mix β. This route is simple and efficient to prepare the products in very good yields.
An enantioselective synthesis of (+)-(S)-[n]-gingerols via the l-proline-catalyzed aldol reaction
Ma, Shichao,Zhang, Shilei,Duan, Wenhu,Wang, Wei
supporting information; experimental part, p. 3909 - 3911 (2010/03/25)
An enantioselective approach to (+)-(S)-[n]-gingerols (1a-c) has been developed. The requisite stereogenic centers of target molecules are facilely constructed by the proline-catalyzed cross-aldol reaction from readily available achiral starting materials
A convenient one-step gingerol synthesis
Fleming,Dyer,Eggington
, p. 1933 - 1939 (2007/10/03)
Racemic 6-gingerol can be obtained in a one-pot reaction by hexanal addition to the dianion of zingerone at low temperature. Similarly, addition of octanal or decanal to the dianion provides 8-gingerol or 10-gingerol, respectively. Acid treatment of the gingerols allows for formation of the corresponding shogaols.
