[1] HOKKAIDO UNIV,FAC PHARMACEUT SCI,SAPPORO,HOKKAIDO 060,JAPAN
[2] HOKKAIDO UNIV,FAC SCI,HIGH RESOLUT NMR LAB,SAPPORO,HOKKAIDO 060,JAPAN
[3] SHIONOGI & CO LTD,SHIONOGI RES LAB,FUKUSHIMA KU,OSAKA 553,JAPAN
[4] ORIENTAL HEALING ARTS INST,LONG BEACH,CA 90815