помогите, пожалуйста, раздобыть несколько статей:
1) Boyer François-Didier and Jean-Yves Lallemand
Tetrahedron, 1994 , vol. 50, # 35 p. 10443 – 10458
Enantioselective syntheses of polyhydroxylated nortropane derivatives: Total synthesis of (+) and (−)-calystegine B2
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http://dx.doi.org/10.1016/S0040-4020(01)89584-3 2) Duclos, O.; Mondange, M.; Dureault, A.; Depezay, J. C.
Polyhydroxylated nortropanes starting from D-glucose: Synthesis of homochiral (+) and (−)-calystegines B2
Tetrahedron Letters, 1992 , vol. 33, # 52 p. 8061 – 8064
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http://dx.doi.org/10.1016/S0040-4039(00)74717-4 Stereoselective Synthesis of 8-Oxabicyclo[3.2.1]octane-2,3,4,6,7-pentols and Total Asymmetric Synthesis of 2,6-Anhydrohepturonic Acid Derivatives and of -C-manno-Pyranosides Suitable for the Construction of (13)-C,C-Linked Trisaccharides
Helvetica Chimica Acta 2001 vol.84 pp 1363 - 1395
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http://dx.doi.org/10.1002/1522-2675(20010613)84:6<1363::AID-HLCA1363>3.0.CO;2-M