Publication number: 20080194678
Abstract: A process to obtain synthetic and semi-synthetic derivatives of lignans, especially dibenzylbutyrolactonic, tetrahydrofuranic, aryltetralynic, furofuranic and dibenzocyclooctanic lignans obtained by means of partial synthesis and/or full synthesis or also by isolation from plant extracts. It refers to a process to obtain synthetic and semi-synthetic derivatives of (?)-cubebin, such as: (?)-O-acetylcubebin; (?)-O-methylcubebin; (?)-O—N,N-(dimethylamino-ethyl)-cubebin; (?)-hinokinin; (?)-6,6?-dinitroinokinine; (?)-O-benzylcubebin; (?)-6,6?-diaminoinokinin, (?)-6,6?-dinitroinokinin, as well as to obtain dibenzocyclooctanic lignans from dibenzylbutyrolactoinic lignans by means of structural modifications in the positions 7, 7?, 8, 8?, 9? and in the aromatic rings (introduction and/or substitution of functional groups such as: —OH, —CO2H, —CO2CH3, —NO2, —NH2, —OCH3, —OAc, —SO2CH3, —SO2NH2, prenyl and halogens) is provided. A therapeutic method using the derivatives is also provided.
Type:
Application
Filed:
July 14, 2006
Publication date:
August 14, 2008
Applicant:
Fundacao de Amparo a Pesquissa do Estado de Aao Pa
Inventors:
Marcio Luis Andrade e Silva, Rosangela da Silva, Vanderlei Rodrigues, Olavo dos Santos Pereira, Ademar Alves da Silva Filho, Paulo Marcos Donate, Sergio Albuquerque, Jairo Kenupp Bastos