... Department of Chemistry, Columbia University New York, New York 10027 Received April 17, 1985 ... 0002-7863/85/1507-5545$01.50/0 0 1985 American Chemical Society ... by using a Sumipax OA-1000 chiral column eluted with a MeOH/HZO/CH3CO2H mixture (95/5/1 vol). ...