Organic Letters
Letter
Notes
The authors declare no competing financial interest.
ACKNOWLEDGMENTS
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This work was financially supported by the Hoansha
Foundation, the Uehara Memorial Foundation, and a Grant-
in-Aid for Scientific research from the ministry of Education,
Culture, Sports, Sciences, and Technology of Japan. K.Y. is
grateful for financial support from the Japan Society for the
Promotion of Science Research Fellow
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dx.doi.org/10.1021/ol501463p | Org. Lett. 2014, 16, 3680−3683