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Withdrawn Paper: Li, M. D.; Zheng, Y. G.; Ji, M. Synthesis of Gefitinib from Methyl 3-Hydroxy-4-methoxybenzoate. Molecules 2007, 12, 673-678
Molecules 2000, 5(10), 1113-1120; doi:10.3390/51001113
Article

Crystal Structure of Methyl 4-amino-4-cyano-4,6-dideoxy-2,3-O-isopropylidene-α-L-talopyranoside

1,* , 1, 1, 2, 3, 3 and 3
1 Institute of Chemistry, Slovak Academy of Sciences, SK-84238 Bratislava, Slovak Republic 2 Department of Inorganic Environmental Chemistry, Chalmers University of Technology, SE-41296 Göteborg, Sweden 3 Institute of Inorganic Chemistry, Slovak Academy of Sciences, SK-84236 Bratislava, Slovak Republic
* Author to whom correspondence should be addressed.
Received: 29 May 2000 / Revised: 7 September 2000 / Accepted: 26 September 2000 / Published: 31 October 2000
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Abstract

The structure of methyl 4-amino-4-cyano-4,6-dideoxy-2,3-O-isopropylidene-α-Ltalopyranoside was established by X-ray analysis confirming a talo configuration at C-4 and suggesting a 1C4 conformation of the pyranose ring. The values of relevant torsion angles and calculated puckering parameters revealed a distortion into the direction of 5E conformation, thus indicating a flattening at C-2.
Keywords: Amino nitrile; methyl talopyranoside; amino sugar; X-ray analysis Amino nitrile; methyl talopyranoside; amino sugar; X-ray analysis
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Koóš, M.; Steiner, B.; Mičová, J.; Langer, V.; Ďurík, M.; Gyepesová, D.; Smrčok, Ľ. Crystal Structure of Methyl 4-amino-4-cyano-4,6-dideoxy-2,3-O-isopropylidene-α-L-talopyranoside. Molecules 2000, 5, 1113-1120.

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