Heterocycles p. 1345 - 1361 (1997)
Update date:2022-09-26
Topics:
Itoh, Kuniaki
Kasami, Makoto
Yamada, Rintaro
Kubo, Toshiaki
Honda, Masahiro
Sera, Akira
Synthesis of key precursors of aspirochlorine (1) and related compounds has been achieved in 5 steps from 1, 4-diacetyl-2,5-piperazinedione (2). MCPBA mediated oxidative cyclization of 1-acetyl-3-salicylidene-2,5-piperazinedione (4) yielded a spiro 3 H-be
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