Bead for enantiomeric isomer resolution and process for producing the same
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United States of America Patent
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Jun 29, 2010
Grant Date -
Mar 12, 2009
app pub date -
Apr 28, 2006
filing date -
May 9, 2005
priority date (Note) -
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status (Latency Note)
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Abstract
There is provided a process for producing beads for enantiomeric isomer resolution with a satisfactory separation efficiency. The beads for enantiomeric isomer resolution include a polysaccharide derivative, in which the polysaccharide derivative has a structure crosslinked at the 6-position hydroxy group of constituent units of the polysaccharide with a crosslinking agent. The process for producing the beads for enantiomeric isomer resolution includes: the step of adding dropwise an organic solvent solution of the polysaccharide derivative to a coagulation bath being stirred to thereby produce beads; the step of taking out the beads and then optionally drying the same after washing; and the step of reacting the beads with a crosslinking agent in an organic solvent to react at least part of the 6-position hydroxy groups in the constituent units of the polysaccharide with the crosslinking agent, thereby obtaining a reaction mixture containing beads having a crosslinked structure.
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