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ACKNOWLEDGMENTS
We thank D. Tanaka and Y. Kamakura, Kwansei Gakuin University, for help with
the x-ray diffraction study and G. A. Cordell, Natural Products and the
University of Florida, for his review of the manuscript prior to submission.
Funding: The research reported here was supported by the MEXT in Japan
through the program for the Strategic Research Foundation at Private
Universities (S1311046), JSPS KAKENHI (grants JP16H01163 in Middle
Molecular Strategy and JP16KT0061), and the Naohiko Fukuoka Memorial
Foundation. Author contributions: D.I. and H.Y. conceived the work. D.I.,
Y.H., S.W., H.S., Y.T., Y.K., K.I., T.H., and S.M. performed the experiments. All
members of the team designed the experiments and analyzed the data. S.W.
and H.Y. wrote the manuscript. D.I., S.W., Y.T., K.I., T.H., and S.M. assisted in
writing and editing the manuscript. Competing interests: Kwansei Gakuin
University has filed a provisional patent on this work (application no. JP2018-
145108). Data and materials availability: All data are presented in the main
text or supplementary materials. The x-ray data and model for 3 are
deposited in the Cambridge Crystallographic Data Centre (CCDC) under
reference number 1878307.
27. T. Ogawa, Y. Takahashi, Total synthesis of α-cyclodextrin. Carbohydr. Res. 138,
28. M. Wakao, K. Fukase, S. Kusumoto, Chemical synthesis of cyclodextrins by
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