| Literature DB >> 9748382 |
M R Prinsep1, G M Patterson, L K Larsen, C D Smith.
Abstract
Two new porphinoids, tolyporphins J (1) and K (2), have been isolated from the terrestrial cyanobacterium, Tolypothrix nodosa (HT-58-2) and identified by NMR and mass spectral analysis. The activities of tolyporphins J and K in cell sensitization and drug accumulation assays for multidrug resistance (MDR) reversal were compared with those of tolyporphin A. Unusual NMR spectroscopic shifts were observed for tolyporphin J (1) in CDCl3.Entities:
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Year: 1998 PMID： 9748382 DOI： 10.1021/np970566+
Source DB: PubMed Journal: J Nat Prod ISSN： 0163-3864 Impact factor: 4.050