The invention provides compounds of Formula (I):
wherein R
1
and R
2
have any of the values or specific values defined herein, as well as compositions comprising such compounds and therapeutic methods comprising the administration of such compounds.
General Strategy for the Synthesis of B<sub>1</sub> Phytoprostanes, Dinor Isoprostanes, and Analogs
作者:Annika Schmidt、Wilhelm Boland
DOI:10.1021/jo062359x
日期:2007.3.1
The synthesis of the phytoprostane B1 types I and II is achieved in high overall yield (35−53%) by only two principal transformations starting from 1,3-cyclopentanedione. The first side chain is attached via O-acylation of the 1,3-dione followed by rearrangement and reduction to give the 2-alkyl-1,3-diones 4a−c. After conversion into the corresponding vinylic iodides 5a−c, the second side chain is
Mild and efficient palladium(<scp>ii</scp>)-catalyzed racemization of allenes
作者:Attila Horváth、Jan-E. Bäckvall
DOI:10.1039/b316482a
日期:——
Allenes undergo racemization in the presence of catalytic amounts of Pd(OAc)2/LiBr under mild conditions; the reaction proceeds via a bromopalladation–debromopalladation sequence and tolerates various functional groups.