منابع مشابه
Revised structure of A53868A.
A53868A is a novel phosphorus-containing antibiotic obtained by fermentation of Streptomyces luridus NRRL15.101 ; the product has a broad-spectrum antimicrobial activity1^ The molecular formula of CnH22N3O5P(MW307) contains units of glycine, leucine, and C3H7NOSP ; mass spectral fragmentation observations and 1H NMRstudies were combined to suggest the structure 11}. However,attempts to synthesi...
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Previously we reported the structure of a new antitumor antibiotic, resorthiomycin (I)1} with an SCH3group at C-6 and an acetyl group at C-l on the resorcinol nucleus (for numbering system, see Fig. 1). Based on the EI-MS and 13C NMRdata, Prof. Haruo Seto, University of Tokyo, suggested that the SCH3 group should not directly bind to the benzene ring and, instead, forms a methylthio ester at C-...
متن کاملRevised Generalized Phrase Structure Grammar
In this paper, I revise generalized phrase structure grammar (GPSG) linguistic theory so that it is more tractable and linguistically constrained. Revised GPSG is also easier to understand, use, and implement. I provide an account of topicalization, ex-plicative pronouns, and parasitic gaps in the revised system and conclude with suggestions for efficient parser design.
متن کاملA revised structure for the Forssman glycolipid hapten.
A glycolipid hapten of the Forssman antigen of horse spleen was found to be a ceramide pentasaccharide, which contained 2 moles of N-acetylgalactosamine, 2 moles of galactose, and 1 mole of glucose per ceramide. An ar-N-acetylgalactosaminidase of hog liver (WEISSMAN, B., AND HINRICHSEN, D. F., Biochemistry, 8, 2034 (1969)) hydrolyzed the terminal a-N-acetylgalactosaminosyl residue with a simult...
متن کاملAlternative Factor Structure for the Revised Self-Consciousness Scale
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ژورنال
عنوان ژورنال: The Journal of Antibiotics
سال: 1972
ISSN: 0021-8820,1881-1469
DOI: 10.7164/antibiotics.25.674