Abstract
AbstractA general strategy for the synthesis of diversely substituted 3,4,5‐trihydroxypiperidines (including two natural products), 5‐amino‐3,4‐dihydroxypiperidines, 3,4,5‐trihydroxypipecolic acids, and 2‐(aminomethyl)‐3,4,5‐trihydroxypiperidines is reported. The procedure used a double reductive amination or a Strecker reaction, starting from differently protected aldehydes readily synthesized on a gram scale from D‐mannose. The biological activities of the target compounds were evaluated, and some of them showed moderate inhibition of α‐L‐fucosidase and β‐glucosidase.
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