|Title||Polymastiamides B-F, novel steroid/amino acid conjugates isolated from the Norwegian marine sponge Polymastia boletiformis|
|Publication Type||Journal Article|
|Year of Publication||1996|
|Authors||Kong, FM, Andersen, RJ|
|Journal||Journal of Natural Products|
|Type of Article||Article|
The structures of polymastiamides B-F (2-6), five new steroid/amino acid conjugates isolated from the Norwegian marine sponge Polymastia boletiformis, have been solved by spectroscopic analysis of their desulfated methyl esters 8-12, respectively. Polymastiamides were found to undergo double-bond migration during treatment with MeOH/HCl to give the Delta(14,15) artifacts 13 to 16. A C-ring benzenoid artifact 17 was also obtained from the methylation reaction.
|URL||<Go to ISI>://A1996UR60100008|