A facile synthesis of optically pure L-a
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Masanori Utaka; Satoshi Konishi; Toshiyasu Okubo; Sadao Tsuboi; Akira Takeda
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Article
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1987
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Elsevier Science
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French
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Optically pure L-armentomycin t(S)-2-amino-4,4-dichlorobutanoic acid] and its D-isomer [(R)-2-amino-4,4-dichlorobutanoic acid] were prepared by using methyl (E)-and (Z)-2,4,4-trichloro-2-butenoate as key intermediate, which were reduced with baker's yeast to (R)-and (S)-2,4,4-trichlorobutanoate in 8