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Novel Cordiachromes Isolated from Auxemma oncocalyx

1993; Taylor & Francis; Volume: 2; Issue: 2 Linguagem: Inglês

10.1080/10575639308043799

1057-5634

Otília Deusdênia Loiola Pessoa, Telma L. G. Lemos, Edilberto R. Silveira, Braz F Raimundo,

Phytochemical compounds biological activities

Abstract The new cordiachromes 1 and 2, named oncocalyxones A and B, have been Isolated from the wood of Auxemma oncocalyx. Their structures were deduced from spectroscopic data, Including 2D NMR experiments, and chemical transformations. Key Words: Auxemma oncocalyx Boraginaceaecordiachromes oncocalyxones A and B.