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[摘要]:The synthesis of both enantiomers of phytoprostane B, type I from 3-[(dimethoxyphosphoryl)methyl]cyclopent-2-enone is reported. It consists of three steps including regioselective alkylation of the Substrate at C(2) with methyl 8-bromooctanoate, subsequent Horner reaction with enantiomeric O-benzoyl-protected alpha-hydroxybutanals and final methanolysis. This affords the product in 25% overall yield. |
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