Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Jorge Rios Steiner"'
Publikováno v:
International Journal of Peptide and Protein Research. 36:292-296
Pyrophen, a novel 4-methoxy-2-pyrone derivative of L-phenylalanine isolated from cultures of Aspergillus niger, crystallizes in the orthorhombic space group P2(1)2(1)2(1), with a = 8.918(1), b = 9.199(3), and c = 18.092(4) A. The structure was solved
Autor:
Raymond J. Andersen, Jorge Rios Steiner, Jana Pika, Eric J. Dumdei, John Coleman, Jon Clardy, Julia Kubanek
Publikováno v:
Canadian Journal of Chemistry. 75:773-789
Chemical investigations of Cadlinaluteomarginata skin extracts, egg masses, and dietary sponges have led to the identification of the novel terpenoids cadlinaldehyde (30), spongian 32, seco-spongian 35, 20-acetoxy-12-marginatone (38), and lutenolide
Autor:
Stephen H. Larsen, Jorge Rios Steiner, Jonathan W. Paschal, Jon Clardy, Herbert A. Kirst, John L. Occolowitz, Lawrence C. Creemer, Emil B. Lobkovsky
Publikováno v:
The Journal of Antibiotics. 48:990-996
A new member of the spiroketal-containing macrolide class of fermentation-derived natural products was isolated from mycelial extracts of Streptomyces diastatochromogenes. The principal component, A82548A, was shown to possess a 22-membered macrolide
Autor:
Linda S. Brinen, Jorge Rios Steiner, Jon Clardy, Charles B. Rose, D. John Faulkner, Mia D. Unson
Publikováno v:
The Journal of Organic Chemistry. 58:6336-6343
A new series of polychlorinated amino acid derivatives were isolated from the tropical marine sponge Dysidea herbacea (Dictyoceratida). Two major hexachlorinated metabolites, dysideathiazole (4) and N-methyldysideathiazole (5), and a minor pentachlor
Autor:
Donald W. Roberts, Jon Clardy, Jorge Rios Steiner, Sandeep K. Gupta, Stuart B. Krasnoff, J. A. A. Renwick
Publikováno v:
The Journal of Organic Chemistry. 58:1062-1067
The structures of viridoxins A and B, two novel toxins isolated from the mycelial extract of the funcgus Metarhizium flavoviride, were established by spectroscopic methods, chemical correlations, and a single-crystal X-ray analysis of viridoxin B. Th
Publikováno v:
Tetrahedron Letters. 34:761-764
Two chlorine-containing metabolites, nostoclide I and II have been isolated from the culture of a symbiotic blue-green alga, Nostoc sp., in Peltigera canina , a common lichen. Their structures were determined by spectroscopic data and x-ray diffracti
Publikováno v:
Tetrahedron. 49:1557-1562
Three pregnanes, 3,4-dihydroxypregna-5,17-diene-10,2-carbolactone (1), 3,4-dihydroxypregna-5,20-diene-10,2-carbolactone (2) and 3,4-dihydroxypregna-5,15-dien-20-one-10,2-carbolactone (3) were isolated from a sponge, Strongylophora sp. The structures
Publikováno v:
ChemInform. 24
Three pregnanes, 3,4-dihydroxypregna-5,17-diene-10,2-carbolactone (1), 3,4-dihydroxypregna-5,20-diene-10,2-carbolactone (2) and 3,4-dihydroxypregna-5,15-dien-20-one-10,2-carbolactone (3) were isolated from a sponge, Strongylophora sp. The structures
Publikováno v:
The Journal of Organic Chemistry. 56:6271-6274
Autor:
Herbert A. Kirst, Jorge Rios Steiner, Jon S. Mynderse, Patrick J. Baker, James W. Martin, Jonathan W. Paschal, Emil B. Lobkovsky, Jon Clardy
Publikováno v:
The Journal of antibiotics. 49(2)
Ossamycin is a cytotoxic agent of undetermined structure that was originally isolated in 1965 from culture broths of Streptomyces hygroscopicus var. ossamyceticus. Its overall structure and relative stereochemistry have now been determined by single