Himastatin, a new antitumor antibiotic from Streptomyces hygroscopicus. III. Structural elucidation.

Autor: Leet JE; Bristol-Myers Squibb Pharmaceutical Research Institute, Wallingford, Connecticut 06492, USA., Schroeder DR, Golik J, Matson JA, Doyle TW, Lam KS, Hill SE, Lee MS, Whitney JL, Krishnan BS
Jazyk: angličtina
Zdroj: The Journal of antibiotics [J Antibiot (Tokyo)] 1996 Mar; Vol. 49 (3), pp. 299-311.
DOI: 10.7164/antibiotics.49.299
Abstrakt: The structure of the antitumor antibiotic himastatin was determined using a combination of spectroscopic and chemical degradation techniques. Himastatin is a unique dimeric cyclohexadepsipeptide joined through a biphenyl linkage between two oxidized tryptophan units. The gross structure of the dimer was established through degradative ozonolysis. Himastatin consists of D-valine, D-threonine, L-leucine, L-alpha-hydroxyisovaleric acid, (3R,5R)-5-hydroxypiperazic acid, and (2R,3aR,8aR)-3a-hydroxyhexahydropyrrolo[2,3b]indole 2-carboxylic acid subunits.
Databáze: MEDLINE