134029-48-4Relevant articles and documents
Isodiplamine, cystodytin K and lissoclinidine: Novel bioactive alkaloids from the New Zealand ascidian Lissoclinum notti
Appleton, David R,Pearce, A.Norrie,Lambert, Gretchen,Babcock, Russell C,Copp, Brent R
, p. 9779 - 9783 (2002)
A study of the bioactive crude extract of the New Zealand ascidian Lissoclinum notti led to the isolation of the new pyridoacridine alkaloids isodiplamine (4), cystodytin K (5) and lissoclinidine (6), as well as the known pyridoacridine alkaloids diplamine (7) and cystodytin J (8) and the benzopentathiepin varacin (3) and related trithiane varacin A. The new alkaloids were characterised using standard spectroscopic techniques, including 2D 1H-15N NMR experiments. Pyridoacridine alkaloids 4-8 were assayed for a range of biological activities including antitumour and antibiotic properties.
Synthesis of Varacin, a Cytotoxic Naturally Occurring Benzopentathiepin Isolated from a Marine Ascidian
Ford, Paul W.,Davidson, Bradley S.
, p. 4522 - 4523 (2007/10/02)
The total synthesis of varacin (1), a cytotoxic metabolite isolated from a marine ascidian, has been accomplished in 11 steps from vanillin, providing unambiguous confirmation of the unique dopamine-related benzopentathiepin structure.