Chemistry Letters p. 445 - 448 (1989)
Update date:2022-09-26
Topics:
Shirai, Fumiyuki
Nakai, Takeshi
A new synthetic route to the 1β-methylcarbapenem precursor from (S)-methyl 3-hydroxy-2-methylpropanoate has been developed which involves as a key step the chelation-controlled aldol reaction of (S)-3-benzyloxy-2-methylpropanal with ketene trimethylsilyl acetal of ethyl (trimethylsilyl)acetate.
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