Further tolyporphins from the Blue-Green alga Tolypothrix nodosa.

Michèle R. Prinsep, Gregory M.L. Patterson, Linda K. Larsen, Charles D. Smith

Research output: Contribution to journalArticlepeer-review

55 Scopus citations


Eight new porphinoids, tolyporphins B-I (2-9), along with the known tolyporphin A (1) have been isolated from a lipophilic extract of the Pacific cyanophyte, Tolypothrix nodosa. Their structures have been elucidated using 1- and 2-D NMR spectroscopic experiments and the tolyporphins showed varying activities in drug accumulation and competitive binding assays for multidrug resistance (MDR) reversal.

Original languageEnglish (US)
Pages (from-to)10523-10530
Number of pages8
Issue number38
StatePublished - Sep 18 1995

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Drug Discovery
  • Organic Chemistry


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