625095-57-0Relevant articles and documents
PHENANTHROLINE PHOSPHONIC ACID DERIVATIVE AND PREPARATION METHOD THEREFOR AND APPLICATION THEREOF
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, (2017/02/28)
The present invention relates to a novel phenanthroline phosphonic acid compound and a pharmaceutical salt thereof, as well as an application of the compound and the pharmaceutical salt thereof as collagen prolyl hydroxylase inhibitors in the preparation of drugs for preventing or treating collagen prolyl-4-hydroxylase related disease.
Synthesis of α,β-unsaturated δ-lactones by vinyl acetate mediated asymmetric cross-aldol reaction of acetaldehyde: Mechanistic insights
Kumar, Manjeet,Kumar, Arvind,Rizvi, Masood,Mane, Manoj,Vanka, Kumar,Taneja, Subhash C.,Shah, Bhahwal Ali
supporting information, p. 5247 - 5255 (2014/09/29)
A tandem asymmetric cross-aldol reaction involving the in situ generation of acetaldehyde from vinyl acetate has been developed that may resolve the challenges associated with the handling of acetaldehyde. The simple protocol, mild reaction conditions and unique harmony of an organocatalyst with a biocatalyst make this method a valuable tool for the synthesis of asymmetric β-hydroxy aldehydes. By using this methodology we have accessed α,β-unstaurated δ-lactones as well as isochromenones with high enantioselectivities from both asymmetric β-hydroxy aldehydes and ketones. Systemic density functional theory (DFT) studies were also performed to gain mechanistic insights into the role of hydrogen bonding in the asymmetric cross-aldol reaction of acetaldehyde and in the key cis/trans isomerisation step in the synthesis of δ-lactones. Copyright
Design, Synthesis, and Sustained-Release Property of 1,3-Cyclic Propanyl Phosphate Ester of 18β-Glycyrrhetinic Acid
Sun, Weizhi,Peng, Weibing,Li, Guoqiang,Jiang, Tao
experimental part, p. 206 - 211 (2012/02/01)
A new class of potential prodrugs, 1,3-cyclic propanyl phosphate esters of 18β-glycyrrhetic acid, was designed and synthesized through the key reaction of 18β-glycyrrhetic acid with 1,3-cyclic propanyl phosphate ester catalysed by lithium diisopropylamide
Pradefovir: A prodrug that targets adefovir to the liver for the treatment of hepatitis B
Reddy, K. Raja,Matelich, Michael C.,Ugarkar, Bheemarao G.,Gómez-Galeno, Jorge E.,DaRe, Jay,Ollis, Kristin,Sun, Zhili,Craigo, William,Colby, Timothy J.,Fujitaki, James M.,Boyer, Serge H.,Van Poelje, Paul D.,Erion, Mark D.
, p. 666 - 676 (2008/09/19)
Adefovir dipivoxil, a marketed drug for the treatment of hepatitis B, is dosed at submaximally efficacious doses because of renal toxicity. In an effort to improve the therapeutic index of adefovir, 1-aryl-1,3-propanyl prodrugs were synthesized with the r
NOVEL 2'-C-METHYL AND 4'-C-METHYL NUCLEOSIDE DERIVATIVES
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Page/Page column 108, (2008/06/13)
Novel 2'-C-methyl nucleoside 5 '-monophosphate and 4'-C-methyl nucleoside 5'- monophosphate derivatives, stereoisomers, and pharmaceutically acceptable salts or prodrugs thereof, their preparation, and their uses for the treatment of hepatitis C viral inf
Phosphoramidate and phosphate prodrugs of (-)-β-D-(2R,4R)-dioxolane- thymine: Synthesis, anti-HIV activity and stability studies
Liang, Yuzeng,Narayanasamy, Janarthanan,Schinazi, Raymond F.,Chu, Chung K.
, p. 2178 - 2189 (2007/10/03)
A series of phosphoramidate and phosphate prodrugs of DOT were synthesized via dichlorophosphate or H-phosphonate chemistry and evaluated for their anti-HIV activity against LAI M184V mutants in PBM cells as well as for their cytotoxicity. The antiviral and cytotoxic profiles of the prodrugs were compared with that of the parent compound (DOT), and it was found that four aryl phosphoramidates 5, 18, 20, and 26 showed a significant enhancement (8- to 12-fold) in anti-HIV activity without cytotoxicity. Chemical stability of these prodrugs was evaluated in phosphate buffer at pH values of biological relevance (i.e., pH 2.0 and 7.4). Enzymatic hydrolysis was also studied in esterase or lipase in buffer solution. Chemical stability studies indicate that the phosphoramidates have good chemical stability at pH 2.0 and at pH 7.4 phosphate buffer. Phosphoramidate prodrugs were hydrolyzed in vitro by esterase or lipase and found to be better substrates for lipases than for esterases. 1,3-Diol cyclic phosphates showed potent anti-HIV activity without increasing the cytotoxicity compared with that of DOT and have good chemical and enzymatic stability. Long-chain lipid phosphates, although showed potent anti-HIV activity, exhibited increased cytotoxicity.
LEWIS ACID MEDIATED SYNTHESIS OF CYCLIC ESTERS
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Page/Page column 28, (2008/06/13)
Methods for the synthesis of cyclic phosphonic acid diesters from 1,3-diols are described, whereby cyclic phosphonic acid diesters are produced by reacting a chiral 1,3-diol and an activated phosphonic acid in the presence of a Lewis acid.
Novel 2'-C-methyl nucleoside derivatives
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Page/Page column 40, (2008/06/13)
Compounds of Formula I, stereoisomers, and pharmaceutically acceptable salts or prodrugs thereof, their preparation, and their uses for the treatment of hepatitis C viral infection are described:
Design, Synthesis, and Characterization of a Series of Cytochrome P 450 3A-Activated Prodrugs (HepDirect Prodrugs) Useful for Targeting Phosph(on)ate-Based Drugs to the Liver
Erion, Mark D.,Reddy, K. Raja,Boyer, Serge H.,Matelich, Michael C.,Gomez-Galeno, Jorge,Lemus, Robert H.,Ugarkar, Bheemarao G.,Colby, Timothy J.,Schanzer, Juergen,Van Poelje, Paul D.
, p. 5154 - 5163 (2007/10/03)
A new class of phosphate and phosphonate prodrugs, called HepDirect prodrugs, is described that combines properties of rapid liver cleavage with high plasma and tissue stability to achieve increased drug levels in the liver. The prodrugs are substituted c
Process for preparation of cyclic prodrugs of PMEA and PMPA
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Page 10, (2010/11/30)
The method of preparing compounds of Formula I is described: wherein: M and V are cis to one another and MPO3H2 is a phosphonic acid selected from the group consisting of 9-(2-phosphonylmethoxyethyl)adenine, and (R)-9-(2-phosphonylmethoxypropyl)adenine; wherein V is phenyl, optionally substituted with 1-2 substituents selected from a group consisting of fluoro, chloro, and bromo; comprising: coupling a chiral 1-phenylpropane-1,3-diol, wherein the phenyl may be optionally substituted, with MPOCl2 or an N-6 substituted analogue thereof. Additionally, methods and salt forms are described that enable isolation and purification of the desired isomer.