Parul Preet Singh

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The crystal structure and the relative stereochemistry of the four asymmetric centers of an unusual C-4a hydroxylated decahydroquinolone, phenyl 1,2 alpha,3,4,-4a alpha,5 beta,6,7,8,8a alpha-decahydro-4a-hydroxy-4-oxo-2-propyl-5-vinylquinoline-1 -carboxylate, C21H27NO4, are reported. The H and OH groups at the ring juncture are cis to each other as are the(More)
Delivery systems for parenteral nutrition have to be based on fundamental principles regarding venous access, choice of intravenous line, need for inline filters, infusion rate control and mode of packaging into "all in one" bags/two line/or the older three line system and, above all, the aseptic maintenance of this delivery system. Delivery systems need to(More)
The 4-methoxypyridinium and oxycarbonyl moieties are coplanar and approximately parallel to the phenyl ring. The latter is involved in a number of short intramolecular interactions with the pyridinium and the oxycarbonyl atoms. Crystal packing is characterized by the presence of hydrophobic and hydrophilic channels, the former consisting of phenylmenthyl(More)
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