a
Organic Synthesis Research Unit, Department of Chemistry, Faculty of Science, Chulalongkorn University and Nanotec-CU Center of Excellence on Food and Agriculture, Bangkok 10330, Thailand
E-mail: smongkol@chula.ac.th
;
Fax: +66 2 2187598
;
Tel: +66 2 2187620
b
Department of Chemistry, Faculty of Science, King Mongkut's University of Technology Thonburi, Bangkok 10140, Thailand
c
Organic Chemistry Institute, University of Zurich, Winterthurerstrasse 190, Zurich, Switzerland
E-mail: jss@oci.uzh.ch
;
Fax: +41 44 635 6888
;
Tel: +41 44 635 4201