Equisetin and a novel opposite stereochemical homolog phomasetin, two fungal metabolites as inhibitors of HIV-1 integrase
摘要:
Integration is an essential step in HN replication and is catalyzed by an enzyme called integrase. We have isolated equisetin (la), and a novel opposite stereochemical homolog, phomasetin (2a), from Fusarium heterosporum and a Phoma sp. respectively. They inhibit the invitro recombinant integrase enzyme with IC50 values of 7-20 mu M. Unlike known inhibitors, these compounds also inhibit the integration reactions catalyzed by preintegration complexes isolated from HIV-I infected cells. (C) 1998 Elsevier Science Ltd. All rights reserved.
Enantioselective total synthesis of (−)-equisetin using a Me3Al-mediated intramolecular Diels–Alder reaction
作者:Kumiko Yuki、Mitsuru Shindo、Kozo Shishido
DOI:10.1016/s0040-4039(01)00217-9
日期:2001.3
An efficient and enantioselective total synthesis of (−)-equisetin 1 has been accomplished using a diastereoselective Me3Al-mediated intramolecularDiels–Alder (IMDA) reaction as a key reaction step.