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The β-directing effect of ionic liquid in mannopyranosylation: a potential access to stereoselective construction of the 1,2-cis-β-D-mannopyranosyl linkage
Sheng Sun, Qing Ma, Xiang-Bao Meng, Qing Li, Shu-Chun Li, He-Qing Huang, Zhong-Jun Li*
. 2011, (6): 549 -556 .  DOI: 10.5246/jcps.2011.06.070