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Further Lignans from Ocotea duckei

1999; Taylor & Francis; Volume: 37; Issue: 2 Linguagem: Inglês

10.1076/phbi.37.2.144.6084

1744-5116

Liana Clébia Soares Lima de Morais, Reinaldo Nóbrega de Almeida, Emídio Vasconcelos Leitão da Cunha, Marcelo Sobral da Silva, José Maria Barbosa‐Filho, A. I. GRAY,

Cholinesterase and Neurodegenerative Diseases

AbstractYangambin, epiyangambin and episesartemin were isolated from the leaves of Ocotea duckei Vattimo. They were identified and characterized by mass spectrometry and nuclear magnetic resonance spectrometry (1 H and 13 C) with the aid of two-dimensional techniques (1 H- 1 H COSY-45 and HMBC). The presence of epiyangambin and episesartemin in Ocotea duckei has not been previously reported.