Violatinctamine, a new heterocyclic compound from the marine tunicate Cystodytes cf. violatinctus |
| |
Authors: | Liat Chill Yehuda Benayahu |
| |
Institution: | a School of Chemistry, Tel-Aviv University, Ramat Aviv 69978, Israel b Department of Zoology, Tel-Aviv University, Ramat Aviv 69978, Israel |
| |
Abstract: | A new alkaloid designated violatinctamine and four known metabolites were isolated from the tunicate Cystodytes cf. violatinctus collected in Kenya. Violatinctamine has a unique heterocyclic skeleton, which combines a benzothiazole unit and a dihydroisoquinoline unit. The structure of violatinctamine was elucidated by interpretation of MS results as well as 1D and 2D NMR spectra of the alkaloid and of its O,O′-dimethyl derivative. Analysis of the spectral information also implies that violatinctamine exists as a mixture of two tautomers—the imino-phenol and the amino quinone-methide. |
| |
Keywords: | Violatinctamine Benzothiazole Alkaloid Marine tunicate Heterocyclic |
本文献已被 ScienceDirect 等数据库收录! |
|