Journal of Organic Chemistry p. 4737 - 4739 (1986)
Update date:2022-08-04
Topics:
Nagao, Yoshimitsu
Kumagai, Toshio
Takao, Sachiko
Abe, Takao
Ochiai, Masahito
et al.
A simplified stereoselective synthesis of penam-type β-lactams 5a-e has been accomplished by utilizing a new methylseleno-promoted ketene-imine cycloaddition reaction and reductive elimination of the methylseleno group with n-Bu3SnH.
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