
Tetrahedron Letters p. 2271 - 2274 (1994)
Update date:2022-08-04
Topics:
Murayama, Toshiyuki
Yoshida, Akifumi
Kobayashi, Toyohiko
Miura, Takashi
A simple, highly diastereoselective synthesis of the key 1β-methylcarbapenem intermediate 1 has been accomplished via a palladium catalyzed deallyloxycarbonylation of diallyl malonate derivative 4a which was readily prepared from (3S,4R)-4-acetoxy-3-<(R)-1-(t-butyldimethylsilyloxy)ethyl>-2-azetidinone 2 in two steps.
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(1993)Doi:10.1016/S0040-4020(01)99363-9
(1963)Doi:10.1016/S0040-4039(00)73944-X
(1993)Doi:10.1021/ol403346x
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(1993)Doi:10.1016/0022-328X(93)80400-6
(1993)