581772-29-4Relevant articles and documents
GlcNAc Conjugated Atorvastatin with Enhanced Water Solubility and Cellular Internalization
Zhang, Xinfu,Chen, Xiaofang,Zhao, Weiyu,Zeng, Chunxi,Luo, Xiao,Li, Wenqing,Li, Bin,Jiang, Justin,Dong, Yizhou
, p. 2109 - 2113 (2017)
Targeting ligands facilitate cell specific drug delivery and improve pharmaceutical properties. Herein, we designed two ligand drug conjugates by conjugating GlcNAc (N-acetylglucosamine) with atorvastatin. These two conjugates, termed G-AT and G-K-AT, exhibited enhanced water solubility and cellular uptake. Moreover, both G-AT and G-K-AT were able to release atorvastatin and consequently achieve significant inhibition against 3-hydroxy-3-methyl-glutaryl-coenzyme A (HMG-CoA) reductase.
Asymmetric Synthesis of Atorvastatin Calcium through Intramolecular Oxidative Oxygen-Nucleophilic Bromocyclization
Wu, Yan,Liu, Min-Jie,Huang, Hai-Qing,Huang, Guan-Xin,Xiong, Fang-Jun,Chen, Fen-Er
, p. 3681 - 3688 (2017/07/22)
The stereocontrolled synthesis of atorvastatin calcium starting from commercially available d-aspartic acid using an intramolecular oxidative oxygen-nucleophilic bromocyclization of a homoallylic tert-butyl carbonate is described. This strategy allows the formation of the chiral syn-1,3-diol moiety with the desired stereochemistry, and provides a functionalized bromomethyl group for the construction of the atorvastatin side-chain with high regio- and diastereoselectivity. This route is attractive as it represents an efficient and environmentally sensitive approach to the large-scale synthesis of statins and their analogues.
Rapid Asymmetric Synthesis of Disubstituted Allenes by Coupling of Flow-Generated Diazo Compounds and Propargylated Amines
Poh, Jian-Siang,Makai, Szabolcs,von Keutz, Timo,Tran, Duc N.,Battilocchio, Claudio,Pasau, Patrick,Ley, Steven V.
supporting information, p. 1864 - 1868 (2017/02/05)
We report herein the asymmetric coupling of flow-generated unstabilized diazo compounds and propargylated amine derivatives, using a new pyridinebis(imidazoline) ligand, a copper catalyst and base. The reaction proceeds rapidly, generating chiral allenes in 10–20 minutes with high enantioselectivity (89–98 % de/ee), moderate yields and a wide functional group tolerance.
METHODS FOR PROVIDING INTERMEDIATES IN THE SYNTHESIS OF ATORVASTATIN.
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, (2016/08/23)
The invention relates to the field of medicinal chemistry, In particular, it relates to methods for providing intermediates in the synthesis of Atorvastatin, a competitive inhibitor of HMG-Co A reductase. Provided is a process for providing a compound having a Formula (I) or a pharmaceutically acceptable salt, ester, amide or stereoisomer thereof, comprising reacting in a 4 component Ugi-reaction in a single reaction mixture the compounds of formula A, formula B, formula C and formula D.
Synthesis and evaluation of atorvastatin esters as prodrugs metabolically activated by human carboxylesterases
Mizoi, Kenta,Takahashi, Masato,Haba, Masami,Hosokawa, Masakiyo
, p. 921 - 923 (2016/05/24)
We synthesized 11 kinds of prodrug with an esterified carboxylic acid moiety of atorvastatin in moderate to high yields. We discovered that they underwent metabolic activation specifically by the human carboxylesterase 1 (CES1) isozyme. The results sugges
LYMPH DIRECTING PRODRUGS
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Page/Page column 80; 81, (2016/02/29)
H:\dar\Interwoven\NRPortbl\DCC\DAR\8230712_1.doc-12/08/2015 Abstract The present invention relates to compounds and their uses, in particular, compounds in the form of prodrugs that promote transport of a pharmaceutical agent to the lymphatic system and subsequently enhance release of the parent drug.
STATIN DERIVATIVES
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Page/Page column 28, (2012/01/13)
Dinitrate statins having improved pharmacological activity are described. They can be employed for treating and/or preventing several diseases, in particular acute coronary syndromes, neurodegenerative disorders as well as for reducing cholesterol levels.
Nitric Oxide Releasing Prodrugs of Therapeutic Agents
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Page/Page column 80, (2011/11/06)
The present invention relates to nitric oxide releasing prodrugs of known drugs or therapeutic agents which are represented herein as compounds of formula (I) wherein the drugs or therapeutic agents contain one or more functional groups independently sele
METHOD FOR THE PREPARATION OF ATORVASTATIN AND INTERMEDIATES USED THEREIN
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Page/Page column 13, (2011/02/18)
The present invention relates to a novel method for preparing atorvastatin. According to the present invention, provided are a novel intermediate of the preparation of atorvastatin and a method of preparing large amounts of atorvastatin in a safe manner using the intermediate.
A novel strategy towards the atorvastatin lactone
Sawant, Pramod,Maier, Martin E.
experimental part, p. 9738 - 9744 (2011/02/25)
We describe a novel strategy to the atorvastatin lactone based on a Paal-Knorr synthesis of pyrrole 24 by condensing diketone 23 with primary amine 22. The latter contains the syn-1,3-diol subunit and a benzyl ether function at the other end of the chain. This allowed for manipulations on the pyrrole ring via iodination at C2, metalation with t-BuLi and carboxylation. The obtained acid 26 could be converted via amide formation, debenzylation, oxidation and lactonization to atorvastatin lactone 6. The key building block, 2-((4R,6S)-6-(2-(benzyloxy)ethyl)-2,2-dimethyl-1,3-dioxan-4-yl)ethanamine (22) was obtained by two sequential asymmetric transfer hydrogenative carbonyl allylations according to Krische.
