TY - JOUR
T1 - Applications of triphenylpyrylium salt-sensitized electron-transfer photo-oxygenation reactions to the synthesis of benzo-fused 1,4-diaryl-2,3- dioxabicyclo[2.2.2]octanes as new antimalarial cyclic peroxides
AU - Kamata, Masaki
AU - Hagiwara, Jun Ichi
AU - Hokari, Tomoko
AU - Suzuki, Chiharu
AU - Fujino, Ryohta
AU - Kobayashi, Sayaka
AU - Kim, Hye Sook
AU - Wataya, Yusuke
N1 - Funding Information:
Acknowledgments We gratefully acknowledge financial support provided by The Uchida Energy Science Promotion Foundation. We also thank Professor Eietsu Hasegawa (Department of Chemistry, Faculty of Science, Niigata University), Professor Ryoichi Akaba (Department of Chemistry, Gunma College of Technology), Professor Tsutomu Miyashi (Department of Chemistry, Graduate School of Science, Tohoku University), Professor Yasutake Takahashi (Graduated School of Medicine and Pharmaceutical Science for Education, University of Toyama), and Professor Hiroshi Ikeda (Department of Chemistry, Graduate School of Engineering, Osaka Prefecture University) for their helpful comments and assistance.
PY - 2013/1
Y1 - 2013/1
N2 - Benzo-fused 1,4-diaryl-2,3-dioxabicyclo[2.2.2]octanes 4a-d (4a: Ar = C 6H5, 4b: Ar = p-FC6H4, 4c: Ar = p-MeC6H4, 4d: Ar = p-MeOC6H4) were synthesized by 2,4,6-triphenylpyrylium tetrafluoroborate (TPPBF 4)-sensitized photoinduced electron-transfer (PET)-promoted oxygenation reactions, and their in-vitro antimalarial activity was evaluated. The results showed that these substances have sufficiently high activity to enable them to serve as antimalarial lead compounds. In addition, TPPBF 4-biphenyl-cosensitized PET oxygenation was shown to be an efficient method for introduction of an O-O moiety in the construction of antimalarial cyclic peroxides. Graphical Abstract: New antimalarial bicyclic peroxides 4 were synthesized by TPPBF4-sensitized photoinduced electron-transfer oxygenation reactions.[Figure not available: see fulltext.]
AB - Benzo-fused 1,4-diaryl-2,3-dioxabicyclo[2.2.2]octanes 4a-d (4a: Ar = C 6H5, 4b: Ar = p-FC6H4, 4c: Ar = p-MeC6H4, 4d: Ar = p-MeOC6H4) were synthesized by 2,4,6-triphenylpyrylium tetrafluoroborate (TPPBF 4)-sensitized photoinduced electron-transfer (PET)-promoted oxygenation reactions, and their in-vitro antimalarial activity was evaluated. The results showed that these substances have sufficiently high activity to enable them to serve as antimalarial lead compounds. In addition, TPPBF 4-biphenyl-cosensitized PET oxygenation was shown to be an efficient method for introduction of an O-O moiety in the construction of antimalarial cyclic peroxides. Graphical Abstract: New antimalarial bicyclic peroxides 4 were synthesized by TPPBF4-sensitized photoinduced electron-transfer oxygenation reactions.[Figure not available: see fulltext.]
KW - Antimalarial activity
KW - Cyclic peroxide
KW - Photo-oxygenation
KW - Photoinduced electron transfer
KW - Single electron transfer
KW - Triphenylpyrylium salt
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U2 - 10.1007/s11164-012-0637-3
DO - 10.1007/s11164-012-0637-3
M3 - Article
AN - SCOPUS:84871814918
SN - 0922-6168
VL - 39
SP - 127
EP - 137
JO - Research on Chemical Intermediates
JF - Research on Chemical Intermediates
IS - 1
ER -