A facile synthesis of optically pure L-armentomycin (cas 10139-00-1) and its D-isomer.Highly enantioselective reduction of the CC double bond of methyl (E)- and (Z)-2,4,4-trichloro-2-butenoate by using baker's yeast

Add time:07/16/2019    Source:sciencedirect.com

Optically pure L-armentomycin [(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 84~92 and 97~98% ee, respectively, in 60~65% yields.

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