Chemical Synthesis and Self-Assembly of a Ladderane Phospholipid
作者:Jaron A. M. Mercer、Carolyn M. Cohen、Steven R. Shuken、Anna M. Wagner、Myles W. Smith、Frank R. Moss、Matthew D. Smith、Riku Vahala、Alejandro Gonzalez-Martinez、Steven G. Boxer、Noah Z. Burns
DOI:10.1021/jacs.6b10706
日期:2016.12.14
producing organism and the inherent difficulty of purifying complex lipid mixtures have prohibited isolation of useful amounts of natural ladderane lipids. We have devised a highly selective total synthesis of ladderane lipid tails and a full phosphatidylcholine to enable biophysical studies on chemically homogeneous samples of these molecules. Additionally, we report the first proof of absolute configuration
Synthesis and characterization of 1-O-β-lactosyl-(R,S)-glycerols and 1,3-di-O-β-lactosylglycerol
作者:Lucjan J.J. Hronowski、Walter A. Szarek、George W. Hay、Anita Krebs、William T. Depew
DOI:10.1016/0008-6215(89)84126-6
日期:1989.7
Abstract The synthesis of 1- O -β-lactosyl-( R,S )-glycerols was achieved by three methods: ( a ) in 25% yield by the trimethylsilyl trifluoromethanesulfonate-promoted reaction of octa- O -acetyl-β-lactose ( 11 ) with ∼0.5 mol-equiv. of 2- O -benzylglycerol ( 4 ), ( b ) in ∼34% yield by the coupling of 4 with an equimolar amount of hepta- O -acetyl-α-lactosyl bromide ( 12 ) in the presence of mercury(II)
Friedel–Crafts catalysts as assistants in the tritylation of less reactive hydroxyls
作者:Roberta Bernini、Maurizio Maltese
DOI:10.1016/j.tetlet.2010.05.144
日期:2010.8
Less reactive hydroxyls, such as those present in secondary alcohols and in some primary alcohols, phenols and carboxylic acids, were easily tritylated with the homogeneous assistance of equimolar quantities of chlorides of di- and trivalent metals in aprotic solvents. The metal ions allowed both high concentration of the effective reagent triphenylmethylcarbenium ion and mobilisation of the hydroxyl
[EN] COMPOSITIONS AND METHODS FOR THE TREATMENT OF UREA CYCLE DISORDERS AND HEPATIC DISEASES<br/>[FR] COMPOSITIONS ET MÉTHODES POUR LE TRAITEMENT D'ANOMALIES DU CYCLE DE L'URÉE ET DE MALADIES HÉPATIQUES
申请人:RAO M SURYA
公开号:WO2017090007A1
公开(公告)日:2017-06-01
The compositions and compounds of formula I, formula II, formula III which includes a molecular conjugate with ornithine or its polymorphs, enantiomers, stereoisomers, solvates, and hydrates thereof. These salts may be formulated as pharmaceutical compositions. The pharmaceutical compositions may be formulated for oral, buccal, rectal, topical, transdermal, transmucosal, intravenous, parenteral administration, syrup, or injection administration. Such compositions may be used to the treatment of urea cycle disorders and hepatic diseases or its associated complications.