Keywords
14-prostaglandin J2
15-deoxyΔ12
Corey lactone diol
dehydration
diastereoselective reaction
dienes.
prostaglandin J2 methyl ester
Abstract
A simple and facile synthesis of racemic 15-deoxy-Δ12,14-prostaglandin J2 methyl ester from readily available Corey lactone diol in total eleven steps was suggested. The standard methods provided a pathway to a block with an integrated w w w-chain and further to PGJ2 methyl ester. The latter was smoothly converted to the target prostaglandin in the TsOH-CH2Cl2 medium when allylic alcohol moiety was transformed to exocyclic diene substituent conjugated with endocyclic enone system.
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