Nmr spectra were recorded
on a JEOL GSX-500 spectrometer (500
MHz for lH, 125 MHz for I3C). Fabms data were
obtained on a JEOL JMS-DX303HF system. Hplc
was performed on a JAI LC-908 (Japan Analytical
Industry, Tokyo, Japan) with an ods column,
JAIGEL ODS GI-15 (0 2.5 cmXl25 cm). All
solvents used for hplc were hplc grade. The H,O
used for hplc was distilled and then deionized