Myrindole A, an Antimicrobial Bis-indole from a Marine Sponge Myrmekioderma sp.
2021
Myrindole A, a bis-indole alkaloid, was isolated from the deep-sea sponge Myrmekioderma sp. The high degree of unsaturation of the molecule complicated the assignment of its structure by standard 2D-NMR experiments but was ultimately achieved by a combination of 1H-15N-HMBC and 1,n-ADEQUATE experiments as well as the comparison of measured and calculated CD spectra. Myrindole A showed antimicrobial activity against Gram-positive and Gram-negative bacteria.
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