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Withdrawn Paper: Li, M. D.; Zheng, Y. G.; Ji, M. Synthesis of Gefitinib from Methyl 3-Hydroxy-4-methoxybenzoate.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

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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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 which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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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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