A synthesis of the sulfuranalog of Δ6-PGI1 with potent inhibitory activity in platelet aggregation is described. The synthesis starting from the suitably protected Corey lactone includes the hydroxylation of the lactone and the novel intramolecular addition of the sulfenyl bromide.
The present application relates to perfume raw materials, perfume delivery systems and consumer products comprising such perfume raw materials and/or such perfume delivery systems, as well as processes for making and using such perfume raw materials, perfume delivery systems and consumer products. Such perfume raw materials and compositions, including the delivery systems, disclosed herein expand the perfume communities' options as such perfume raw materials can provide variations on character and such compositions can provide desired odor profiles.
Substituted phenylalkenoic acids and esters of the formula: ##STR1## having useful pharmaceutical activity are disclosed.
揭示了具有有用药用活性的公式为##STR1##的取代苯基烯酸和酯。
Process for preparing substituted phenylalkenoic acids
申请人:Merck Frosst Canada, Inc.
公开号:US04453005A1
公开(公告)日:1984-06-05
Substituted phenylalkenoic acids and esters of the formula: ##STR1## having useful pharmaceutical activity and processes for their preparation are disclosed.
本发明公开了具有有用药理活性的公式为:##STR1## 的取代苯基烯酸和酯,以及它们的制备方法。
Synthesis of Enantiomerically Pure (8<i>S</i>,9<i>S</i>,10<i>R</i>,6<i>Z</i>)-Trihydroxyoctadec-6-enoic Acid
We have accomplished the asymmetric synthesis of (8S,9S,10R,6Z)-trihydroxyoctadec-6-enoic acid in optically pure form and determined the absolute configuration of the natural product on the basis of the stereodetermined chiral building block 7, which was prepared by the catalytic enantioselective allylic oxidation of 4,5-epoxycyclohex-1-ene using an S-configured N,N-bidentate ligand–copper catalyst