... TIEH-HORNG HWANG, YOSHIKI KASHIWADA,? GEN-ICHIRO NoNAKAt ... Page 4. 282 TH HWANG et UI ... Kyushu Umverslty) for energy- dlspersrve X-ray analysis They are also indebted to Mr Y Tanaka and MISS Y Soeda for 'H and 13CNMR measurements, Mr R Isobe for MS measurements, and the staff of the Analysis Room of Kyushu Unlverslty for mlcrodnaiysls REFERERCES 1 SalJo, R, Nonaka, G, Nlshloka, I, Chen, IS and Hwang, TH. ...