Concise Enantioselective Synthesis of ent-Malbrancheamide B
摘要:
A concise enantioselective synthesis of the fungal metabolite ent-malbrancheamide B was accomplished through the union of a C-prenylated proline derivative and a substituted indole pyruvic acid SEM enol ether, followed by a cationic double cyclization as the key step.
A cationic cyclisation route to prenylated indole alkaloids: synthesis of malbrancheamide B and brevianamide B, and progress towards stephacidin A
作者:Frédéric C. Frebault、Nigel S. Simpkins
DOI:10.1016/j.tet.2010.04.093
日期:2010.8
The synthesis of the prenylatedindole alkaloids, malbrancheamide B and brevianamide B have been accomplished, starting with a prenylated proline derivative created using the Seebach ‘self-reproduction of chirality’ method, and using a cationic cascade sequence as the key step to form late-stage bridged diketopiperazine intermediates.
Concise Enantioselective Synthesis of ent-Malbrancheamide B
作者:Frederic Frebault、Nigel S. Simpkins、Ashley Fenwick
DOI:10.1021/ja900688y
日期:2009.4.1
A concise enantioselective synthesis of the fungal metabolite ent-malbrancheamide B was accomplished through the union of a C-prenylated proline derivative and a substituted indole pyruvic acid SEM enol ether, followed by a cationic double cyclization as the key step.