1. JST ERATO, Lipid Active Structure Project; Osaka University; 1-1 Machikaneyama Toyonaka Osaka Prefecture 560-0043 Japan
2. Department of Chemistry, Graduate School of Science; Osaka University; 1-1 Machikaneyama Toyonaka Osaka Prefecture 560-0043 Japan
3. Project Research Centre for Fundamental Science; Osaka University; 1-1 Machikaneyama Toyonaka Osaka Prefecture 560-0043 Japan