Caged Ceramide 1-Phosphate Analogues: Synthesis and Properties
作者:Ravi S. Lankalapalli、Alberto Ouro、Lide Arana、Antonio Gómez-Muñoz、Robert Bittman
DOI:10.1021/jo902076w
日期:2009.11.20
phosphate analogues bearing 7-(diethylamino)coumarin (DECM) and 4-bromo-5-hydroxy-2-nitrobenzhydryl (BHNB) groups in a photolabile ester bond were synthesized. The ability of the “caged” ceramide 1-phosphate analogues to release the bioactive parent molecule upon irradiation at 400−500 nm was demonstrated by stimulation of macrophage cell proliferation.
Total Synthesis of (−)-Balanol, All Stereoisomers, TheirN-Tosyl Analogues, and Fully Protected Ophiocordin: An Easy Route to Hexahydroazepine Cores from Garner Aldehydes
作者:Ajay Kumar Srivastava、Gautam Panda
DOI:10.1002/chem.200701991
日期:2008.5.19
(-)-balanol and all of itsstereoisomers starting from easily available Garner aldehydes are described. Diastereoselective Grignard reactions on Garner aldehydes and ring-closing metatheses are the key steps for the construction of hexahydroazepine subunits. The benzophenone subunits were constructed through coupling of suitably functionalized aromatic aldehyde and bromo components. The synthetic route