Design, Synthesis, and Biological Evaluation of Novel Hybrid Dicaffeoyltartaric/Diketo Acid and Tetrazole-Substituted l-Chicoric Acid Analogue Inhibitors of Human Immunodeficiency Virus Type 1 Integrase
摘要:
Fourteen analogues of the anti-HIV-1 integrase (IN) inhibitor L-chicoric acid (L-CA) were prepared. Their IC50 values for 3'-end processing and strand transfer against recombinant HIV-1 IN were determined in vitro, and their cell toxicities and EC50 against HIV-1 were measured in cells (ex vivo). Compounds 1-6 are catechol/beta-diketoacid hybrids, the majority of which exhibit submicromolar potency against 3'-end processing and strand transfer, though only with modest antiviral activities. Compounds 7-10 are L-CA/p-fluorobenzylpyrroloyl hybrids, several of which were more potent against strand transfer than 3'-end processing, a phenomenon previously attributed to the beta-diketo acid pharmacophore. Compounds 11-14 are tetrazole bioisosteres of L-CA and its analogues, whose in vitro potencies were comparable to L-CA but with enhanced antiviral potency. The trihydroxyphenyl analogue 14 was 30-fold more potent than L-CA at relatively nontoxic concentrations. These data indicate that L-CA analogues are attractive candidates for development into clinically relevant inhibitors of HIV-1 IN.
MYOCARDIAL REGENERATION PROMOTING COMPOUNDS, PREPARATION METHOD THEREOF, PHARMACEUTICAL COMPOSITION, AND THEIR USE
申请人:GENHEALTH PHARMA CO., LTD.
公开号:US20200317602A1
公开(公告)日:2020-10-08
The present invention discloses a novel 3-aryl-2-propen-1-one series derivative and the synthesis processes thereof. Besides, the present invention also discloses the series derivative as a pharmaceutical composition and their use for promoting myocardial regeneration.
Identification of Adducts between an Odoriferous Volatile Thiol and Oxidized Grape Phenolic Compounds: Kinetic Study of Adduct Formation under Chemical and Enzymatic Oxidation Conditions
to identify new addition products between 3-sulfanylhexan-1-ol (3SH) and o-quinones derived from (+)-catechin, (−)-epicatechin, and caftaric acid. The kinetics of formation of these adducts were monitored in a wine model solution and in a must-like medium by HPLC–UV–MS with the aim of understanding the chemical mechanism involved in reactions between volatile thiols and o-quinones. One o-quinone-caftaric
Synthesis, Identification, and Structure Elucidation of Adducts Formed by Reactions of Hydroxycinnamic Acids with Glutathione or Cysteinylglycine
作者:Nayla Ferreira-Lima、Anna Vallverdú-Queralt、Emmanuelle Meudec、Jean-Paul Mazauric、Nicolas Sommerer、Marilde T. Bordignon-Luiz、Véronique Cheynier、Christine Le Guernevé
DOI:10.1021/acs.jnatprod.6b00279
日期:2016.9.23
especially hydroxycinnamic acids such as caftaric and caffeic acid, are prone to enzymatic oxidation reactions during the winemaking process, forming o-quinones and leading to color darkening. Glutathione is capable of trapping these o-quinones and thus limiting juice browning. In this study, the addition of glutathione or cysteinylglycine onto caftaric or caffeic acid o-quinones formed by polyph
Myocardial regeneration promoting compounds, preparation method thereof, and pharmaceutical composition
申请人:GENHEALTH PHARMA CO., LTD.
公开号:US11124472B2
公开(公告)日:2021-09-21
The present invention discloses a novel 3-aryl-2-propen-1-one series derivative and the synthesis processes thereof. Besides, the present invention also discloses the series derivative as a pharmaceutical composition and their use for promoting myocardial regeneration.
A solubilized steviol glycoside composition including one or more steviol glycosides and one or more steviol glycoside solubility enhancers can be used as a sweetener composition to sweeten other compositions (sweetenable compositions) such as foods, beverages, medicines, oral hygiene compositions, pharmaceuticals, nutraceuticals, and the like.