Ramoplanin (A-16686), a new glycolipodepsipeptide antibiotic. III. Structure elucidation.
نویسندگان
چکیده
منابع مشابه
Ramoplanin (A-16686), a new glycolipodepsipeptide antibiotic. IV. Complete sequence determination by homonuclear 2D NMR spectroscopy.
Homonuclear 2D NMR spectroscopy double quantum filter correlation spectroscopy (DQF-COSY), relayed-COSY, nuclear Overhauser enhancement spectroscopy (NOESY), and DQF-relayed-NOESY) allowed the complete determination of the core depsipeptide of antibiotic ramoplanin (A-16686). In particular, the DQF-relayed-NOESY experiments were essential in assigning the single signals close to the diagonal.
متن کاملOximidine III, a new antitumor antibiotic against transformed cells from Pseudomonas sp. II. Structure elucidation.
The structure of oximidine III, a new antitumor antibiotic against transformed cells from Pseudomonas sp. QN05727, was determined to be a benzolactone enamide containing an O-methyloxime moiety as shown in Fig. 1 by NMR spectral analysis including a variety of two-dimensional techniques.
متن کاملMycoversilin, a new antifungal antibiotic. II. Structure elucidation.
The structure of a new antifungal antibiotic, mycoversilin, produced by Aspergillus versicolor (N5)17 was determined as I by various spectroscopic and chemical methods. Mycoversilin is a unique polynuclear aromatic compound having two methyl and six hydroxyl groups and two ether linkages. The acetyl derivative prepared was found to have no antifungal property.
متن کاملSwalpamycin, a new macrolide antibiotic. II. Structure elucidation.
A new antibiotic swalpamycin (1) has been isolated from the culture broth of Streptomyces sp. Y-84,30967. The antibiotic has the molecular formula of C37H56O14 and belongs to the class of 16-membered neutral macrolide antibiotics. Its structure has been elucidated by an analysis of its spectral properties. It contains a novel aglycone herein called swalpanolide.
متن کاملMulundocandin, a new lipopeptide antibiotic. II. Structure elucidation.
The structure of a new antifungal antibiotic, mulundocandin, C48H77N7O16, was elucidated by high field NMR experiments e.g., homo- and heteronuclear correlation spectra, distortionless enhancement by polarization transfer (DEPT) spectra as well as nuclear Overhauser effect. The compound is a lipopeptide antibiotic belonging to the echinocandin class.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Journal of Antibiotics
سال: 1989
ISSN: 0021-8820,1881-1469
DOI: 10.7164/antibiotics.42.254