Complete assignment of 1H and 13C NMR data for three aryltetralin lignan lactones |
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| Authors: | da Silva Rosangela Heleno Vladimir Constantino Gomes de Albuquerque Sérgio Bastos Jairo Kenupp Andrade e Silva Márcio Luis Donate Paulo Marcos da Silva Gil Valdo José |
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| Affiliation: | Departamento de Análises Clínicas, Toxicológicas e Bromatológicas da Faculdade de Ciências Farmacêuticas de Ribeir?o Preto, Universidade de S?o Paulo, Avenida do Café, s/n, 14040-903 Ribeir?o Preto, SP, Brazil. rosilva@usp.br |
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| Abstract: | We describe the complete 1H and 13C NMR analysis of three aryltetralin lignan lactones (polygamain, morelensin and 4,5-dimethoxymorelensin) using modern NMR techniques such as COSY, HMQC, HMBC, 2D-J-resolved and NOE experiments. The relative stereochemistry of these compounds, which is very important with regard to their biological activity, was completely determined. |
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| Keywords: | NMR 1H NMR 13C NMR 2D NMR aryltetralin lignan lactones polygamain morelensin |
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