Bulletin of the Chemical Society of Japan p. 2971 - 2976 (1980)
Update date:2022-08-03
Topics:
Yokoyama, Yasushi
Moriyama, Yoshihiko
Tsuyuki, Takahiko
Takahashi, Takeyoshi
Itai, Akiko
Iitaka, Yoichi
D:A-Friedo-18β-lup-19-en-3-one was transformed into D:B-friedo-18β,19αH-lup-5-en-3β-ol by two routes, 1) bromination-dehydrobromination of an enol benzoate of D:A-friedo-18β,19αH-lupan-3-one and 2) BF3*Et2O-catalyzed backbone rearrangement of 3β,4β-epoxy-
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Doi:10.1016/S0957-4166(00)82266-1
(1990)Doi:10.1039/c6ra11370b
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(1990)Doi:10.1038/s41557-019-0225-x
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