1. School of Pharmacy, University of Otago, P.O. Box 56, Dunedin 9054, New
Zealand
2. Carbohydrate Chemistry
Team, Industrial Research Limited, P.O.
Box 31310, Lower
Hutt 5040, New Zealand
3. Department
of Chemistry, University of Otago, P.O.
Box 56, Dunedin 9054, New
Zealand