Diastereoselective synthesis of (+)-nephrosterinic acid and (+)-protolichesterinic acid-Science-Chemical Encyclopedia-lookchem

Diastereoselective synthesis of (+)-nephrosterinic acid and (+)-protolichesterinic acid
Add time:08/25/2019 Source:sciencedirect.com

A diastereoselective synthesis of (+)-nephrosterinic acid and (+)-protolichesterinic acid, common members of the paraconic acids is described. The synthesis is based on a diastereoselective orthoester Johnson–Claisen rearrangement of a (Z)-allyl alcohol with a vicinal dioxolane moiety as key steps. The synthesis is completed in 10 steps and with overall yields of 15.9% for (+)-nephrosterinic acid and 16.4% for (+)-protolichesterinic acid.

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